MICE Collaboration meeting
at Berkeley
9 – 12 February 2005
AFC Module progress
Presented by
Wing Lau
--with input from AFC
group members
Status of Progress
Action
Who
Progress made
status
Implement central repository for drawings
-- need detector information to add to official drawing
WL
Done.
Instrumentation for absorbers must be
specified and incorporated into design
(temperature sensors, liquid level sensors, …)
SI
Basically complete.
On-going liasing with Mississippi on CKOV1
drawings; with Tortora on Calorimeter etc
Diffuser still to be added
Hyperlink to drawing gallery is now available
Proposal now available (see Shigeru’s summary
talk) and will be discussed among the AFC
group as an on going action for Absorber R&D
Define absorber heater implementation
YI /
SI
Continue working to define worst-case
magnet forces and collect magnet design
notes into design report
MG/
YI/
SY
Check if a 1600mm gap between AFC &
Tracker matching coils
WL/
UB
Revise absorber vent pipe size to make it
adequate for He case
WL
Get RAL seismic design criteria and verify
that designs meet them
WL/
PD
Done
Done
Ditto
Yury and the team at RAL has now completed
that work. Stephanie completed the FEA on
forces and displacements. We are now homing
in on the rail and anchoring design details
Ullisee has completed the calculations and
advised that either gap distance (800mm or
1600mm) is acceptable as far as forces and
current density are concerned. However, the
group has a preference to the 800mm gap.
Agreed to increase this to 15mm diameter.
Drawing being updated
Done
This is not considered significant as RAL site
has relatively low floor response. A static “G” of
0.3 would be sufficient for all components with a
natural frequency of above 33Hz.
Comp
lete.
Done
Done
Who
Progress made
status
Evaluate stresses at module interconnect
flanges and bolts
SV
Ongoing
Define RFCC module tie-in to rail system
SV
Work out gusset arrangement to transfer CC
forces to RFCC module vacuum shell.
SV
Steve Verostek had done detail FEA on bolt
/ flange connection and the work is still ongoing
This is now in he hands on the RAL design
team
Await Mike Green to finalise the Cold Mass
support arrangement before deciding on
how and where to put these gussets
Evaluate the need for redundant LH2 relief
paths
EB /
TB
This is part of the on-going R&D activity on
the Hydrogen System R&D.
Ongoing
Evaluate merits of cryocooler heater vs. 3-stage
cooler w/o heater
Evaluate absorber heat load with more realistic
assessment of surrounding temperatures (is
proposed MLI adequate?)
Finalize interface between radiation shield and
detector module
- must forces be transmitted
Consider participation in KEK and/or Fermilab
absorber tests (some coordination maybe called
for)
MG
Concluded that this is no longer an option for
our current design
Done
EB/
MG/
SY
Thermal model set up. Elwyn and his team
are making progress on this
Ongoing
WL
Stephanie has done the calc. Forces and
displacement s at modules are acceptable
for the 7 cases being considered.
Done
YI /
SI
MICE Absorber R&D will be carried out at
KEK for the 1st absorber. We are still in
discussion with Shigeru on whether the
thermal test of the 2nd & 3rd absorbers
should be done at KEK or RAL.
Work is by and large complete. It shows that
the 3 focus coils should be powered in
series. The 2 Coupling Coils could be
powered up either in series or separately.
Ongoing
Done
Done
Action
Evaluate magnet interaction during quench
-- does one quench induce others
EB /
MG
Raise Change note on the radiation shield
design
SY /
WL
Ongoing
Ongoing
Done
Action
Who
Progress made
status
Window QC – round robin exercise
WL
Work is on-going.
Ongoing
Understand QC requirements for absorber
windows and assign oversight responsibility
WL
Need to discuss with the group on who is
the best person to do this
On
going
Hydrogen system R&D
TB /
EB
Progress being made. See the previous
summary talk.
On -going
Status of Progress
Action
Who
Progress made
status
Implement central repository for drawings
-- need detector information to add to official drawing
WL
Done.
Instrumentation for absorbers must be
specified and incorporated into design
(temperature sensors, liquid level sensors, …)
SI
Basically complete.
On-going liasing with Mississippi on CKOV1
drawings; with Tortora on Calorimeter etc
Diffuser still to be added
Hyperlink to drawing gallery is now available
Proposal now available (see Shigeru’s summary
talk) and will be discussed among the AFC
group as an on going action for Absorber R&D
Define absorber heater implementation
YI /
SI
Continue working to define worst-case
magnet forces and collect magnet design
notes into design report
MG/
YI/
SY
Check if a 1600mm gap between AFC &
Tracker matching coils
WL/
UB
Revise absorber vent pipe size to make it
adequate for He case
WL
Get RAL seismic design criteria and verify
that designs meet them
WL/
PD
Done
Done
Ditto
Yury and the team at RAL has now completed
that work. Stephanie completed the FEA on
forces and displacements. We are now homing
in on the rail and anchoring design details
Ullisee has completed the calculations and
advised that either gap distance (800mm or
1600mm) is acceptable as far as forces and
current density are concerned. However, the
group has a preference to the 800mm gap.
Agreed to increase this to 15mm diameter.
Drawing being updated
Done
This is not considered significant as RAL site
has relatively low floor response. A static “G” of
0.3 would be sufficient for all components with a
natural frequency of above 33Hz.
Comp
lete.
Done
Done
Comp.
visible
TOF0
Chev 2
TOF 1&2
Magnetic
Shield
Detector
Module
Radiation
Shield
AFC
modules
1&3
Coupling
Modules
1&2
☑
☑
☑
☑
☑
☑
☑
Status of Progress
Action
Who
Progress made
status
Implement central repository for drawings
-- need detector information to add to official drawing
WL
Done.
Instrumentation for absorbers must be
specified and incorporated into design
(temperature sensors, liquid level sensors, …)
SI
Basically complete.
On-going liasing with Mississippi on CKOV1
drawings; with Tortora on Calorimeter etc
Diffuser still to be added
Hyperlink to drawing gallery is now available
Proposal now available (see Shigeru’s summary
talk) and will be discussed among the AFC
group as an on going action for Absorber R&D
Define absorber heater implementation
YI /
SI
Continue working to define worst-case
magnet forces and collect magnet design
notes into design report
MG /
YI /
SY
Check if a 1600mm gap between AFC &
Tracker matching coils
WL/
UB
Revise absorber vent pipe size to make it
adequate for He case
WL
Get RAL seismic design criteria and verify
that designs meet them
WL/
PD
Done
Done
Ditto
Yury and the team at RAL has now completed
that work. Stephanie completed the FEA on
forces and displacements. We are now homing
in on the rail and anchoring design details
Ullisee has completed the calculations and
advised that either gap distance (800mm or
1600mm) is acceptable as far as forces and
current density are concerned. However, the
group has a preference to the 800mm gap.
Agreed to increase this to 15mm diameter.
Drawing being updated
Done
This is not considered significant as RAL site
has relatively low floor response. A static “G” of
0.3 would be sufficient for all components with a
natural frequency of above 33Hz.
Comp
lete.
Done
Done
Heater/thermometer assemble for MICE absorber
AL. block
CX-1050-SD
HTR-25-100
Thermometers in absorber
AC Bridge 370S
CX-1050-SD
3716; 16ch Scanner
L-H2/LHe Level sensor in absorber
DC ~mA

DC Current for L-H2/LHe should be
optimized (KEK R&D).
V4
V3
LHe
LH2
CX-1050-SD

Wiring of
thermometers, level
sensor & heaters

4 wires measurement for
thermometers and heaters

AC Bridge 370S with16ch Scanner
Max. 16 CH

6 for absorber (8  6, 2 at top )
2 for windows
2 for LH2 pipes
2 for C-He pipes
3 for Cryocooler
1 for magnet bore
MICE absorber monitor/control
(R&D at KEK, plan)
LAN
PC
IEEE-488/RS232C
cc1mA
DCPS
DCPS
DCPS
0.1mA
Keithley 2700
Inside Abs.
Abs. HTR-UP
Abs. HTR-DWN
CRYOSTAT
READ
OUTS
CRYOCOOL HTR
16 CX-1050SD’s
Abs. LEVEL
3-HTR
CX-1050
5-CX-1050
P&VAC
Sensors
ALRAM, VALVES, CRYOCOOLER-OFF, HEATER-OFF…
MICE absorber
monitor/control (plan)
Programmable Controller or LOGIC
LAN
DIO
Contacts
PC / WS
DIRECT
CONTROL
IEEE-488
DMR 1-6
2CH
AC Bridge 370S
DCPS
DCPS
DCPS
cc1mA
Keithley/ADC
Inside Abs.
Abs. HTR-UP
16 CX-1050SD’s
CRYOCOOL
HTR
CRYOSTAT
Abs. LEVEL
CX-1050
Abs. HTR-DWN
READ
OUTS
3-HTR
5-CX-1050
P&VAC&LEVEL
Sensors
Digital meter relay for MICE
absorber/Cryocooler
DMR; DIGITAL METER RELAY
(Digital comparator)
Watanabe (Japan) for example
INPUT
WSM-452HR-R3NNNX-22VD ; DC 0-199.99 mV
WSM-452HR-R3NNNX-32VD ; DC 0-1.9999 V
WSM-452HR-R3NNNX-42VD ; DC 0-19.999 V
WSM-452HR-R3NNNX-52VD ; DC 0-199.99 V
OUTPUT( 4.5 digit set)
HI-relay (NC, HO)
LO-relay (NC, NO)
Scaling; A-B (V)  C-D (Unit)
DC24V
Status of Progress
Action
Who
Progress made
status
Implement central repository for drawings
-- need detector information to add to official drawing
WL
Done.
Instrumentation for absorbers must be
specified and incorporated into design
(temperature sensors, liquid level sensors, …)
SI
Basically complete.
On-going liasing with Mississippi on CKOV1
drawings; with Tortora on Calorimeter etc
Diffuser still to be added
Hyperlink to drawing gallery is now available
Proposal now available (see Shigeru’s summary
talk) and will be discussed among the AFC
group as an on going action for Absorber R&D
Define absorber heater implementation
YI /
SI
Continue working to define worst-case
magnet forces and collect magnet design
notes into design report
MG/
YI/
SY
Check if a 1600mm gap between AFC &
Tracker matching coils
WL/
UB
Revise absorber vent pipe size to make it
adequate for He case
WL
Get RAL seismic design criteria and verify
that designs meet them
WL/
PD
Done
Done
Ditto
Yury and the team at RAL has now completed
that work. Stephanie completed the FEA on
forces and displacements. We are now homing
in on the rail and anchoring design details
Ullisee has completed the calculations and
advised that either gap distance (800mm or
1600mm) is acceptable as far as forces and
current density are concerned. However, the
group has a preference to the 800mm gap.
Agreed to increase this to 15mm diameter.
Drawing being updated
Done
This is not considered significant as RAL site
has relatively low floor response. A static “G” of
0.3 would be sufficient for all components with a
natural frequency of above 33Hz.
Comp
lete.
Done
Done
Force profile received from Yury in January 2005
Forces (MN)
Case No.
AFC 1
RFCC 1
AFC 2
RFCC 2
AFC 3
1
-0.088
-0.214
0
0.214
0.088
2
0.037
0.186
0
-0.186
-0.037
3
0
-0.211
0
0.211
0
4
-0.398
0
0
0
0.398
5
0.312
-0.313
0
0.313
-0.312
6
-0.084
0.095
-0.313
0
0.401
7
-0.0878
-0.2213
0.0009
0.3057
-0.3121
Case 1: Forces (in MN) for Flip mode, Stage 6, p=240 MeV/c, β=42cm
MICE cooling channel FEA model with the
loading and boundary conditions
Case 1: FEA result
case 1: horizontal reaction forces
40000
30000
reaction forces N
20000
10000
0
1
2
3
4
5
6
7
-10000
-20000
-30000
-40000
Case 1: vertical reaction force
Max reaction force in Y direction at the support
base is 44548 N
50000
40000
30000
reaction forces N
20000
10000
0
-10000
-20000
-30000
-40000
-50000
1
2
3
4
5
6
7
8
9
10
8
9
10
Super-module reaction forces
foot
Normal Operation
Case 1
Flip
240Mev/c
y force/foot
z force/foot
z force/side
Case 2
Non flip
240
y force/foot
z force/foot
z force/side
Symmetric Quench
Case 3
AFC Q
Case 4
y force/foot
z force/foot
z force/side
CC Q
Case 5
y force/foot
z force/foot
z force/side
DET Q
y force/foot
z force/foot
z force/side
Non Symmetric Quench
Case 6
CCQ
non sym
y force/foot
z force/foot
z force/side
Case 5
DET Q
non sym
y force/foot
z force/foot
z force/side
y grav
ymag
zmag
y grav
ymag
zmag
y grav
ymag
zmag
y grav
ymag
zmag
y grav
ymag
zmag
y grav
ymag
zmag
y grav
ymag
zmag
AFC
Pos
1
AFC
RF/CC
RF/CC
AFC
AFC
RF/CC
RF/CC
AFC
AFC
2
3
4
5
6
7
8
9
10
-0.4
-0.8
-1.2
0.2
-0.4
0.8
0.4
0.2
0.4
-0.4
-0.5
-0.9
-0.1
-0.2
-1.2
-4.4
-5.6
2.8
-1.2
4.4
3.2
2.9
5.7
-1.2
-3.2
-4.4
-2.2
-4.2
-0.4
0.0
-0.4
0.0
-0.4
0.0
-0.4
0.0
0.0
-0.4
0.0
-0.4
0.0
0.0
-1.2
4.4
3.2
-2.9
-1.2
-4.4
-5.6
-2.8
-5.7
-1.2
3.2
2.0
2.0
4.2
-0.4
0.8
0.4
-0.2
-0.4
-0.8
-1.2
-0.2
-0.4
-0.4
0.5
0.1
-0.1
-0.2
-0.4
0.3
-0.2
0.1
0.2
-0.4
1.9
1.5
0.5
1.0
-0.4
-0.9
-1.3
-0.3
-0.5
-1.2
-3.1
-4.3
2.0
-1.2
3.1
1.9
2.0
4.0
-1.2
5.5
4.3
3.8
6.9
-1.2
0.4
-0.9
0.2
0.5
-0.4
0.0
-0.4
0.0
-0.4
0.0
-0.4
0.0
0.0
-0.4
0.0
-0.4
0.0
0.0
-0.4
0.0
-0.4
0.0
0.0
-1.2
3.1
1.9
-2.0
-1.2
-3.1
-4.3
-2.0
-4.0
-1.2
-5.5
-6.7
-3.1
-6.9
-1.2
-0.4
-1.6
-0.4
-0.5
-0.4
0.3
-0.2
-0.1
-0.4
0.3
-0.1
0.1
0.2
-0.4
1.4
1.0
0.3
0.6
-1.2
-0.5
-1.7
0.6
-1.2
0.7
-0.5
0.6
1.2
-1.2
8.4
7.2
5.0
10.0
-0.4
-0.1
-0.5
0.1
-0.4
0.3
-0.1
0.1
0.2
-0.4
0.5
0.1
0.2
0.4
-1.2
4.4
3.2
-3.0
-1.2
-4.5
-5.7
-2.5
-5.5
-1.2
3.9
2.7
1.8
3.8
-0.4
1.7
1.3
-0.5
-0.4
0.5
0.1
-0.1
-0.4
-0.3
-0.7
0.1
-0.4
-1.9
-2.3
0.5
-0.4
0.9
0.4
-0.3
-0.4
-0.2
-0.6
0.1
-0.4
-1.3
-1.7
0.3
-1.2
3.2
2.0
-2.0
-1.2
-5.5
-6.7
3.1
-1.2
-0.4
-1.6
0.4
-1.2
-9.3
-10.5
5.0
-0.4
0.0
-0.4
0.0
-0.4
0.0
-0.4
0.0
-0.4
0.0
-0.4
0.0
-0.4
-0.4
-0.8
0.2
-1.2
-3.2
-4.4
2.2
-1.2
5.5
4.3
-3.8
-1.2
0.4
-0.9
-0.2
-1.2
-3.8
-5.0
2.0
-0.4
-0.5
-0.9
-0.1
-0.4
1.9
1.5
-0.5
-0.4
-0.9
-1.3
0.3
-0.4
-1.4
-1.8
0.4
-0.4
-0.3
-0.7
-0.1
-0.2
-0.4
-1.9
-2.3
-0.5
-1.0
-0.4
0.9
0.4
0.3
0.5
-0.4
-1.8
-2.2
-0.5
-1.0
-0.4
1.5
1.1
0.3
0.7
Rail – mounting concept
Combined Roller
Bearing
Force transfer concept - Y
Status of Progress
Action
Who
Progress made
status
Implement central repository for drawings
-- need detector information to add to official drawing
WL
Done.
Instrumentation for absorbers must be
specified and incorporated into design
(temperature sensors, liquid level sensors, …)
SI
Basically complete.
On-going liasing with Mississippi on CKOV1
drawings; with Tortora on Calorimeter etc
Diffuser still to be added
Hyperlink to drawing gallery is now available
Proposal now available (see Shigeru’s summary
talk) and will be discussed among the AFC
group as an on going action for Absorber R&D
Define absorber heater implementation
YI /
SI
Continue working to define worst-case
magnet forces and collect magnet design
notes into design report
MG/
YI/
SY
Check if a 1600mm gap between AFC &
Tracker matching coils
WL/
UB
Revise absorber vent pipe size to make it
adequate for He case
WL
Get RAL seismic design criteria and verify
that designs meet them
WL/
PD
Done
Done
Ditto
Yury and the team at RAL has now completed
that work. Stephanie completed the FEA on
forces and displacements. We are now homing
in on the rail and anchoring design details
Ullisee has completed the calculations and
advised that either gap distance (800mm or
1600mm) is acceptable as far as forces and
current density are concerned. However, the
group has a preference to the 800mm gap.
Agreed to increase this to 15mm diameter.
Drawing being updated
Done
This is not considered significant as RAL site
has relatively low floor response. A static “G” of
0.3 would be sufficient for all components with a
natural frequency of above 33Hz.
Comp
lete.
Done
Done
Ulisse Bravar
26 January 2005
•This note presents the optic solutions for MICE Step III for
a large number of different running conditions.
•Two gap distances between the two spectrometers are
considered, 800 mm and 1600 mm.
•For the 800 mm gap, a table with forces and peak fields on
coil surfaces for the worst case scenarios is attached,
courtesy of H. Witte
•For the 1600 mm gap, all currents in the MICE coils are
equal to or less than the worst case currents of the 800 mm
gap.
•Hence, for the 1600 mm case, forces and peak fields are
also lower than the ones in the 800 mm case.
•In conclusion, currents, peak fields and forces both in the
800 mm and in the 1600 mm gaps are within tolerances.
Status of Progress
Action
Who
Progress made
status
Implement central repository for drawings
-- need detector information to add to official drawing
WL
Done.
Instrumentation for absorbers must be
specified and incorporated into design
(temperature sensors, liquid level sensors, …)
SI
Basically complete.
On-going liasing with Mississippi on CKOV1
drawings; with Tortora on Calorimeter etc
Diffuser still to be added
Hyperlink to drawing gallery is now available
Proposal now available (see Shigeru’s summary
talk) and will be discussed among the AFC
group as an on going action for Absorber R&D
Define absorber heater implementation
YI /
SI
Continue working to define worst-case
magnet forces and collect magnet design
notes into design report
MG/
YI/
SY
Check if a 1600mm gap between AFC &
Tracker matching coils
WL/
UB
Revise absorber vent pipe size to make it
adequate for He case
WL
Get RAL seismic design criteria and verify
that designs meet them
WL/
PD
Done
Done
Ditto
Yury and the team at RAL has now completed
that work. Stephanie completed the FEA on
forces and displacements. We are now homing
in on the rail and anchoring design details
Ullisee has completed the calculations and
advised that either gap distance (800mm or
1600mm) is acceptable as far as forces and
current density are concerned. However, the
group has a preference to the 800mm gap.
Agreed to increase this to 15mm diameter.
Drawing being updated
Done
This is not considered significant as RAL site
has relatively low floor response. A static “G” of
0.3 would be sufficient for all components with a
natural frequency of above 33Hz.
Comp
lete.
Done
Done
Status of Progress
Action
Who
Progress made
status
Implement central repository for drawings
-- need detector information to add to official drawing
WL
Done.
Instrumentation for absorbers must be
specified and incorporated into design
(temperature sensors, liquid level sensors, …)
SI
Basically complete.
On-going liasing with Mississippi on CKOV1
drawings; with Tortora on Calorimeter etc
Diffuser still to be added
Hyperlink to drawing gallery is now available
Proposal now available (see Shigeru’s summary
talk) and will be discussed among the AFC
group as an on going action for Absorber R&D
Define absorber heater implementation
YI /
SI
Continue working to define worst-case
magnet forces and collect magnet design
notes into design report
MG/
YI/
SY
Check if a 1600mm gap between AFC &
Tracker matching coils
WL/
UB
Revise absorber vent pipe size to make it
adequate for He case
WL
Get RAL seismic design criteria and verify
that designs meet them
WL/
PD
Done
Done
Ditto
Yury and the team at RAL has now completed
that work. Stephanie completed the FEA on
forces and displacements. We are now homing
in on the rail and anchoring design details
Ullisee has completed the calculations and
advised that either gap distance (800mm or
1600mm) is acceptable as far as forces and
current density are concerned. However, the
group has a preference to the 800mm gap.
Agreed to increase this to 15mm diameter.
Drawing being updated
Done
This is not considered significant as RAL site
has relatively low floor response. A static “G” of
0.3 would be sufficient for all components with a
natural frequency of above 33Hz.
Comp
lete.
Done
Done
Who
Progress made
status
Evaluate stresses at module interconnect
flanges and bolts
SV
Ongoing
Define RFCC module tie-in to rail system
SV
Work out gusset arrangement to transfer CC
forces to RFCC module vacuum shell.
SV
Steve Verostek had done detail FEA on bolt
/ flange connection and the work is still ongoing
This is now in he hands on the RAL design
team
Await Mike Green to finalise the Cold Mass
support arrangement before deciding on
how and where to put these gussets
Evaluate the need for redundant LH2 relief
paths
EB /
TB
This is part of the on-going R&D activity on
the Hydrogen System R&D.
Ongoing
Evaluate merits of cryocooler heater vs. 3-stage
cooler w/o heater
Evaluate absorber heat load with more realistic
assessment of surrounding temperatures (is
proposed MLI adequate?)
Finalize interface between radiation shield and
detector module
- must forces be transmitted
Consider participation in KEK and/or Fermilab
absorber tests (some coordination maybe called
for)
MG
Concluded that this is no longer an option for
our current design
Done
EB/
MG/
SY
Thermal model set up. Elwyn and his team
are making progress on this
Ongoing
WL
Stephanie has done the calc. Forces and
displacement s at modules are acceptable
for the 7 cases being considered.
Done
YI /
SI
MICE Absorber R&D will be carried out at
KEK for the 1st absorber. We are still in
discussion with Shigeru on whether the
thermal test of the 2nd & 3rd absorbers
should be done at KEK or RAL.
Work is by and large complete. It shows that
the 3 focus coils should be powered in
series. The 2 Coupling Coils could be
powered up either in series or separately.
Ongoing
Done
Done
Action
Evaluate magnet interaction during quench
-- does one quench induce others
EB /
MG
Raise Change note on the radiation shield
design
SY /
WL
Ongoing
Ongoing
Done
Who
Progress made
status
Evaluate stresses at module interconnect
flanges and bolts
SV
Ongoing
Define RFCC module tie-in to rail system
SV
Work out gusset arrangement to transfer CC
forces to RFCC module vacuum shell.
SV
Steve Verostek had done detail FEA on bolt
/ flange connection and the work is still ongoing
This is now in he hands on the RAL design
team
Await Mike Green to finalise the Cold Mass
support arrangement before deciding on
how and where to put these gussets
Evaluate the need for redundant LH2 relief
paths
EB /
TB
This is part of the on-going R&D activity on
the Hydrogen System R&D.
Ongoing
Evaluate merits of cryocooler heater vs. 3-stage
cooler w/o heater
Evaluate absorber heat load with more realistic
assessment of surrounding temperatures (is
proposed MLI adequate?)
Finalize interface between radiation shield and
detector module
- must forces be transmitted
Consider participation in KEK and/or Fermilab
absorber tests (some coordination maybe called
for)
MG
Concluded that this is no longer an option for
our current design
Done
EB/
MG/
SY
Thermal model set up. Elwyn and his team
are making progress on this
Ongoing
WL
Stephanie has done the calc. Forces and
displacement s at modules are acceptable
for the 7 cases being considered.
Done
YI /
SI
MICE Absorber R&D will be carried out at
KEK for the 1st absorber. We are still in
discussion with Shigeru on whether the
thermal test of the 2nd & 3rd absorbers
should be done at KEK or RAL.
Work is by and large complete. It shows that
the 3 focus coils should be powered in
series. The 2 Coupling Coils could be
powered up either in series or separately.
Ongoing
Done
Done
Action
Evaluate magnet interaction during quench
-- does one quench induce others
EB /
MG
Raise Change note on the radiation shield
design
SY /
WL
Ongoing
Ongoing
Done
Who
Progress made
status
Evaluate stresses at module interconnect
flanges and bolts
SV
Ongoing
Define RFCC module tie-in to rail system
SV
Work out gusset arrangement to transfer CC
forces to RFCC module vacuum shell.
SV
Steve Verostek had done detail FEA on bolt
/ flange connection and the work is still ongoing
This is now in he hands on the RAL design
team
Await Mike Green to finalise the Cold Mass
support arrangement before deciding on
how and where to put these gussets
Evaluate the need for redundant LH2 relief
paths
EB /
TB
This is part of the on-going R&D activity on
the Hydrogen System R&D.
Ongoing
Evaluate merits of cryocooler heater vs. 3-stage
cooler w/o heater
Evaluate absorber heat load with more realistic
assessment of surrounding temperatures (is
proposed MLI adequate?)
Finalize interface between radiation shield and
detector module
- must forces be transmitted
Consider participation in KEK and/or Fermilab
absorber tests (some coordination maybe called
for)
MG
Concluded that this is no longer an option for
our current design
Done
EB/
MG/
SY
Thermal model set up. Elwyn and his team
are making progress on this
Ongoing
WL
Stephanie has done the calc. Forces and
displacement s at modules are acceptable
for the 7 cases being considered.
Done
YI /
SI
MICE Absorber R&D will be carried out at
KEK for the 1st absorber. We are still in
discussion with Shigeru on whether the
thermal test of the 2nd & 3rd absorbers
should be done at KEK or RAL.
Work is by and large complete. It shows that
the 3 focus coils should be powered in
series. The 2 Coupling Coils could be
powered up either in series or separately.
Ongoing
Done
Done
Action
Evaluate magnet interaction during quench
-- does one quench induce others
EB /
MG
Raise Change note on the radiation shield
design
SY /
WL
Ongoing
Ongoing
Done
Who
Progress made
status
Evaluate stresses at module interconnect
flanges and bolts
SV
Ongoing
Define RFCC module tie-in to rail system
SV
Work out gusset arrangement to transfer CC
forces to RFCC module vacuum shell.
SV
Steve Verostek had done detail FEA on bolt
/ flange connection and the work is still ongoing
This is now in he hands on the RAL design
team
Await Mike Green to finalise the Cold Mass
support arrangement before deciding on
how and where to put these gussets
Evaluate the need for redundant LH2 relief
paths
EB /
TB
This is part of the on-going R&D activity on
the Hydrogen System R&D.
Ongoing
Evaluate merits of cryocooler heater vs. 3-stage
cooler w/o heater
Evaluate absorber heat load with more realistic
assessment of surrounding temperatures (is
proposed MLI adequate?)
Finalize interface between radiation shield and
detector module
- must forces be transmitted
Consider participation in KEK and/or Fermilab
absorber tests (some coordination maybe called
for)
MG
Concluded that this is no longer an option for
our current design
Done
EB/
MG/
SY
Thermal model set up. Elwyn and his team
are making progress on this
Ongoing
WL
Stephanie has done the calc. Forces and
displacement s at modules are acceptable
for the 7 cases being considered.
Done
YI /
SI
MICE Absorber R&D will be carried out at
KEK for the 1st absorber. We are still in
discussion with Shigeru on whether the
thermal test of the 2nd & 3rd absorbers
should be done at KEK or RAL.
Work is by and large complete. It shows that
the 3 focus coils should be powered in
series. The 2 Coupling Coils could be
powered up either in series or separately.
Ongoing
Done
Done
Action
Evaluate magnet interaction during quench
-- does one quench induce others
EB /
MG
Raise Change note on the radiation shield
design
SY /
WL
Ongoing
Ongoing
Done
Hydrogen System Baseline layout
High level vent
High level vent
Non return
valve
Vent manifold
0.1 bar
Hydrogen zone 2
Vent
outside
flame
arrester
Vent manifold
H2Detector
Extract hood
VP2
PV8
P
P1
PV7
P
PV2
Buffer
3
vessel 1 m
Hydrogen
supply
P
P
PV1
Metal Hydride
storage unit
(20m3 capacity)
1 bar
Tbed
PV3
PV4
Fill valve
P
HV1
Coolant
Out In
P2
P
0.5 bar
0.9 bar
P
P
P
P3
P
HV2
Purge valve
P
H2 Detector
Safety window
Purge valve
HV3
Absorber window
Nitrogen
supply
0.9 bar
PV6
Helium
supply
0.5 bar
VP1
P
Pressure
gauge
P
Pressure
regulator
Valve
Pressure
relief valve
Non-return
valve
Bursting disk
VP
Vacuum pump
Chiller/He
ater Unit
Who
Progress made
status
Evaluate stresses at module interconnect
flanges and bolts
SV
Ongoing
Define RFCC module tie-in to rail system
SV
Work out gusset arrangement to transfer CC
forces to RFCC module vacuum shell.
SV
Steve Verostek had done detail FEA on bolt
/ flange connection and the work is still ongoing
This is now in he hands on the RAL design
team
Await Mike Green to finalise the Cold Mass
support arrangement before deciding on
how and where to put these gussets
Evaluate the need for redundant LH2 relief
paths
EB /
TB
This is part of the on-going R&D activity on
the Hydrogen System R&D.
Ongoing
Evaluate merits of cryocooler heater vs. 3-stage
cooler w/o heater
Evaluate absorber heat load with more realistic
assessment of surrounding temperatures (is
proposed MLI adequate?)
Finalize interface between radiation shield and
detector module
- must forces be transmitted
Consider participation in KEK and/or Fermilab
absorber tests (some coordination maybe called
for)
MG
Concluded that this is no longer an option for
our current design
Done
EB/
MG/
SY
Thermal model set up. Elwyn and his team
are making progress on this
Ongoing
WL
Stephanie has done the calc. Forces and
displacement s at modules are acceptable
for the 7 cases being considered.
Done
YI /
SI
MICE Absorber R&D will be carried out at
KEK for the 1st absorber. We are still in
discussion with Shigeru on whether the
thermal test of the 2nd & 3rd absorbers
should be done at KEK or RAL.
Work is by and large complete. It shows that
the 3 focus coils should be powered in
series. The 2 Coupling Coils could be
powered up either in series or separately.
Ongoing
Done
Done
Action
Evaluate magnet interaction during quench
-- does one quench induce others
EB /
MG
Raise Change note on the radiation shield
design
SY /
WL
Ongoing
Ongoing
Done
Who
Progress made
status
Evaluate stresses at module interconnect
flanges and bolts
SV
Ongoing
Define RFCC module tie-in to rail system
SV
Work out gusset arrangement to transfer CC
forces to RFCC module vacuum shell.
SV
Steve Verostek had done detail FEA on bolt
/ flange connection and the work is still ongoing
This is now in he hands on the RAL design
team
Await Mike Green to finalise the Cold Mass
support arrangement before deciding on
how and where to put these gussets
Evaluate the need for redundant LH2 relief
paths
EB /
TB
This is part of the on-going R&D activity on
the Hydrogen System R&D.
Ongoing
Evaluate merits of cryocooler heater vs. 3-stage
cooler w/o heater
Evaluate absorber heat load with more realistic
assessment of surrounding temperatures (is
proposed MLI adequate?)
Finalize interface between radiation shield and
detector module
- must forces be transmitted
Consider participation in KEK and/or Fermilab
absorber tests (some coordination maybe called
for)
MG
Concluded that this is no longer an option for
our current design
Done
EB/
MG/
SY
Thermal model set up. Elwyn and his team
are making progress on this
Ongoing
WL
Stephanie has done the calc. Forces and
displacement s at modules are acceptable
for the 7 cases being considered.
Done
YI /
SI
MICE Absorber R&D will be carried out at
KEK for the 1st absorber. We are still in
discussion with Shigeru on whether the
thermal test of the 2nd & 3rd absorbers
should be done at KEK or RAL.
Work is by and large complete. It shows that
the 3 focus coils should be powered in
series. The 2 Coupling Coils could be
powered up either in series or separately.
Ongoing
Done
Done
Action
Evaluate magnet interaction during quench
-- does one quench induce others
EB /
MG
Raise Change note on the radiation shield
design
SY /
WL
Ongoing
Ongoing
Done
Model
Absorber thermal model
Who
Progress made
status
Evaluate stresses at module interconnect
flanges and bolts
SV
Ongoing
Define RFCC module tie-in to rail system
SV
Work out gusset arrangement to transfer CC
forces to RFCC module vacuum shell.
SV
Steve Verostek had done detail FEA on bolt
/ flange connection and the work is still ongoing
This is now in he hands on the RAL design
team
Await Mike Green to finalise the Cold Mass
support arrangement before deciding on
how and where to put these gussets
Evaluate the need for redundant LH2 relief
paths
EB /
TB
This is part of the on-going R&D activity on
the Hydrogen System R&D.
Ongoing
Evaluate merits of cryocooler heater vs. 3-stage
cooler w/o heater
Evaluate absorber heat load with more realistic
assessment of surrounding temperatures (is
proposed MLI adequate?)
Finalize interface between radiation shield and
detector module
- must forces be transmitted
Consider participation in KEK and/or Fermilab
absorber tests (some coordination maybe called
for)
MG
Concluded that this is no longer an option for
our current design
Done
EB/
MG/
SY
Thermal model set up. Elwyn and his team
are making progress on this
Ongoing
WL
Stephanie has done the calc. Forces and
displacement s at modules are acceptable
for the 7 cases being considered.
Done
YI /
SI
MICE Absorber R&D will be carried out at
KEK for the 1st absorber. We are still in
discussion with Shigeru on whether the
thermal test of the 2nd & 3rd absorbers
should be done at KEK or RAL.
Work is by and large complete. It shows that
the 3 focus coils should be powered in
series. The 2 Coupling Coils could be
powered up either in series or separately.
Ongoing
Done
Done
Action
Evaluate magnet interaction during quench
-- does one quench induce others
EB /
MG
Raise Change note on the radiation shield
design
SY /
WL
Ongoing
Ongoing
Done
FEA result summary
Case No.
Max stress
MPa
Max displacement
mm
Max horizontal
reaction force N
Max vertical
reaction force N
1
37
0.114
29148
44548
2
28
0.075
21588
33201
3
26
0.063
20672
31797
4
89
0.291
37005
55633
5
70
0.164
3747
9213
6
88
0.28
66833
46302
7
69
0.22
50698
85550
Who
Progress made
status
Evaluate stresses at module interconnect
flanges and bolts
SV
Ongoing
Define RFCC module tie-in to rail system
SV
Work out gusset arrangement to transfer CC
forces to RFCC module vacuum shell.
SV
Steve Verostek had done detail FEA on bolt
/ flange connection and the work is still ongoing
This is now in he hands on the RAL design
team
Await Mike Green to finalise the Cold Mass
support arrangement before deciding on
how and where to put these gussets
Evaluate the need for redundant LH2 relief
paths
EB /
TB
This is part of the on-going R&D activity on
the Hydrogen System R&D.
Ongoing
Evaluate merits of cryocooler heater vs. 3-stage
cooler w/o heater
Evaluate absorber heat load with more realistic
assessment of surrounding temperatures (is
proposed MLI adequate?)
Finalize interface between radiation shield and
detector module
- must forces be transmitted
Consider participation in KEK and/or Fermilab
absorber tests (some coordination maybe called
for)
Evaluate magnet interaction during quench
-- does one quench induce others
MG
Concluded that this is no longer an option for
our current design
Done
EB/
MG/
SY
Thermal model set up. Elwyn and his team
are making progress on this
Ongoing
WL
Stephanie has done the calc. Forces and
displacement s at modules are acceptable
for the 7 cases being considered.
Done
YI /
SI
Detail arrangement is still being worked out
between KEK & RAL
Ongoing
EB /
MG
Work is by and large complete. It shows that
the 3 focus coils should be powered in
series. The 2 Coupling Coils could be
powered up either in series or separately.
Done
SY /
WL
Done
Done
Action
Raise Change note on the radiation shield
design
Ongoing
Ongoing
Absorber test cryostat ATC-002
(dimensions)
MICE
W
W
D2; Cryocooler flange
(needs larger Cryocooler
flange for pips)
D1
H2
H1
July
05
Oct
05
Jan
06
Apr
06
July
06
Oct
06
Jan
07
Apr
07
Absorber R & D
Thermal performance test
on 2nd absorber
Thermal performance test
on 3rd absorber
Hydrogen system R&D
Initial design
KEK test cryostat
comes to RAL
Prelim. D & S review
Detailed design &
procurement
Installation &
commissioning
Test programme
Permission
to operate
Phase 1 deliverable fully installed & tested
Thermal performance test
on 1st absorber (KEK)
Who
Progress made
status
Evaluate stresses at module interconnect
flanges and bolts
SV
Ongoing
Define RFCC module tie-in to rail system
SV
Work out gusset arrangement to transfer CC
forces to RFCC module vacuum shell.
SV
Steve Verostek had done detail FEA on bolt
/ flange connection and the work is still ongoing
This is now in he hands on the RAL design
team
Await Mike Green to finalise the Cold Mass
support arrangement before deciding on
how and where to put these gussets
Evaluate the need for redundant LH2 relief
paths
EB /
TB
This is part of the on-going R&D activity on
the Hydrogen System R&D.
Ongoing
Evaluate merits of cryocooler heater vs. 3-stage
cooler w/o heater
Evaluate absorber heat load with more realistic
assessment of surrounding temperatures (is
proposed MLI adequate?)
Finalize interface between radiation shield and
detector module
- must forces be transmitted
Consider participation in KEK and/or Fermilab
absorber tests (some coordination maybe called
for)
MG
Concluded that this is no longer an option for
our current design
Done
EB/
MG/
SY
Thermal model set up. Elwyn and his team
are making progress on this
Ongoing
WL
Stephanie has done the calc. Forces and
displacement s at modules are acceptable
for the 7 cases being considered.
Done
YI /
SI
MICE Absorber R&D will be carried out at
KEK for the 1st absorber. We are still in
discussion with Shigeru on whether the
thermal test of the 2nd & 3rd absorbers
should be done at KEK or RAL.
Work is by and large complete. It shows that
the 3 focus coils should be powered in
series. The 2 Coupling Coils could be
powered up either in series or separately.
Ongoing
Done
Done
Action
Evaluate magnet interaction during quench
-- does one quench induce others
EB /
MG
Raise Change note on the radiation shield
design
SY /
WL
Ongoing
Ongoing
Done
Lab G Solenoid Power Supply
and Quench Protection
The MICE Coupling Coil Power Supply
with Quench Protection
The MICE Coupling Coil Power Supply
with Quench Protection
Note: The coil is shown split into two parts. The coil may be
split into three or four parts instead of two parts.
Detector Magnet Power Supplies
Match 1
Match 2
End 1
Center
PS
PS
PS
PS
Power Supply
10 V, 300 A
Power Supply
10 V, 50 A
End 2
PS
Concluding Comments on Quenches
• The focusing and coupling magnets will have passive
quench protection. The detector magnet will likely
have an active quench protection system.
• The three focusing magnets should be in series.
• Each coupling magnet should have its own power
supply to reduce the charge time.
• Like detector magnet coils can be put in series.
• A coupling coil quench will quench the rest of MICE. A
focus coil quench will not quench a coupling coil.
Who
Progress made
status
Evaluate stresses at module interconnect
flanges and bolts
SV
Ongoing
Define RFCC module tie-in to rail system
SV
Work out gusset arrangement to transfer CC
forces to RFCC module vacuum shell.
SV
Steve Verostek had done detail FEA on bolt
/ flange connection and the work is still ongoing
This is now in he hands on the RAL design
team
Await Mike Green to finalise the Cold Mass
support arrangement before deciding on
how and where to put these gussets
Evaluate the need for redundant LH2 relief
paths
EB /
TB
This is part of the on-going R&D activity on
the Hydrogen System R&D.
Ongoing
Evaluate merits of cryocooler heater vs. 3-stage
cooler w/o heater
Evaluate absorber heat load with more realistic
assessment of surrounding temperatures (is
proposed MLI adequate?)
Finalize interface between radiation shield and
detector module
- must forces be transmitted
Consider participation in KEK and/or Fermilab
absorber tests (some coordination maybe called
for)
MG
Concluded that this is no longer an option for
our current design
Done
EB/
MG/
SY
Thermal model set up. Elwyn and his team
are making progress on this
Ongoing
WL
Stephanie has done the calc. Forces and
displacement s at modules are acceptable
for the 7 cases being considered.
Done
YI /
SI
MICE Absorber R&D will be carried out at
KEK for the 1st absorber. We are still in
discussion with Shigeru on whether the
thermal test of the 2nd & 3rd absorbers
should be done at KEK or RAL.
Work is by and large complete. It shows that
the 3 focus coils should be powered in
series. The 2 Coupling Coils could be
powered up either in series or separately.
Ongoing
Done
Done
Action
Evaluate magnet interaction during quench
-- does one quench induce others
EB /
MG
Raise Change note on the radiation shield
design
SY /
WL
Ongoing
Ongoing
Done
Action
Who
Progress made
status
Window QC – round robin exercise
WL
Work is on-going.
Ongoing
Understand QC requirements for absorber
windows and assign oversight responsibility
WL
Need to discuss with the group on who is
the best person to do this
On
going
Hydrogen system R&D
TB /
EB
Progress being made. See the previous
summary talk.
On -going
Task Description
An AFC Module window that was damaged during machining
was used to test a non-contact measurement method. A
standard CMM was also used for comparison. All
measurements were made on both sides of the window with
the thickness being determined indirectly from the two sets
of data. Measurements consisted of 12 radial slices at 15º
increments. The center 80 mm of the window is damaged.
Measurement Methods
•Standard CMM with low contact force
•Vision machine with medium magnification lens
•Vision machine with high magnification (not yet complete)
Summary of Results
•Best data obtained from CMM measurement
•Vision machine data shows more scatter
•Good portion of window is within 40 mm of design thickness
Standard CMM Measurement
Vision Machine Measurement
Window Thickness vs. Radial Location
0.9
0.8
Thickness (mm)
0.7
0.6
0.5
0.4
0.3
0.2
CMM Data
As Designed
Vision Data (med. mag.)
0.1
0
30
40
50
60
70
Radial Location (mm)
80
90
100
Discussion
• The vision machine works best when measuring horizontal,
smooth surfaces
• The combination of a sloped surface and machining grooves
in the window is likely responsible for the data scatter
• Preliminary results indicate that the higher magnification lens
may provide better results than the medium lens
• Overall, the best results are achieved using contact CMM
• The following method would provide the highest accuracy:
 Contact CMM using a low-force tip and appropriate
approach angle resulting in no window deflection
 The window mounted vertically to allow a single set-up
Action
Who
Progress made
status
Window QC – round robin exercise
WL
Work is on-going.
Ongoing
Understand QC requirements for absorber
windows and assign oversight responsibility
WL
Need to discuss with the group on who is
the best person to do this
On
going
Hydrogen system R&D
TB /
EB
Progress being made. See the previous
summary talk.
On -going
Action
Who
Progress made
status
Window QC – round robin exercise
WL
Work is on-going.
Ongoing
Understand QC requirements for absorber
windows and assign oversight responsibility
WL
Need to discuss with the group on who is
the best person to do this
On
going
Hydrogen system R&D
TB /
EB
Progress being made. See the previous
summary talk.
On -going
Revised Action list
Who
Progress made
Evaluate the need for redundant LH2 relief
paths
EB /
TB
This is part of the on-going R&D activity on
the Hydrogen System R&D.
Ongoing
Evaluate absorber heat load with more realistic
assessment of surrounding temperatures (is
proposed MLI adequate?)
Evaluate stresses at module interconnect
flanges and bolts
EB/
MG/
SY
Thermal model set up. Elwyn and his team
are making progress on this
Ongoing
SV
Ongoing
Define RFCC module tie-in to rail system
SV
Steve Verostek had done detail FEA on bolt
/ flange connection and the work is still ongoing
This is now in he hands on the RAL design
team
Work out gusset arrangement to transfer CC
forces to RFCC module vacuum shell.
SV
Ongoing
Window QC – round robin exercise
WL
Await Mike Green to finalise the Cold Mass
support arrangement before deciding on
how and where to put these gussets
Work is on-going.
Understand QC requirements for absorber
windows and assign oversight responsibility
Hydrogen system R&D
WL
Need to discuss with the group on who is
the best person to do this
On
going
TB /
EB
Progress being made. See the previous
summary talk.
On -going
Action
status
Ongoing
Ongoing
Revised Action list
Who
Progress made
Evaluate the need for redundant LH2 relief
paths
EB /
TB
This is part of the on-going R&D activity on
the Hydrogen System R&D.
Ongoing
Evaluate absorber heat load with more realistic
assessment of surrounding temperatures (is
proposed MLI adequate?)
Evaluate stresses at module interconnect
flanges and bolts
EB/
MG/
SY
Thermal model set up. Elwyn and his team
are making progress on this
Ongoing
SV
Ongoing
Define RFCC module tie-in to rail system
SV
Steve Verostek had done detail FEA on bolt
/ flange connection and the work is still ongoing
This is now in he hands on the RAL design
team
Work out gusset arrangement to transfer CC
forces to RFCC module vacuum shell.
SV
Ongoing
Window QC – round robin exercise
WL
Await Mike Green to finalise the Cold Mass
support arrangement before deciding on
how and where to put these gussets
Work is on-going.
Understand QC requirements for absorber
windows and assign oversight responsibility
Hydrogen system R&D
WL
Need to discuss with the group on who is
the best person to do this
On
going
TB /
EB
Progress being made. See the previous
summary talk.
On -going
EB /
SY
Initial guess is that the force is in the region
of 30 tons. Force calculation will be carried
out to verify this number. A new temporary
bridging plate will be designed for the
Stage IV test
New
action
Action
Obtain magnet force on AFC module during
Stage IV test when only one AFC module is
placed between the two detector solenoids
status
Ongoing
Ongoing
Stage IV arrangement – 2 tracker solenoids + 1 AFC module in between
Magnet force of this
magnitude may
cause excessive
bending here
Magnet force of approx. 30 Tons due to
asymmetric quench of magnets
Reinforcement
gussets
Temporary
bridging piece