Experiment
S1067
Projec'le
fragmenta'on
of
Na
isotopes
on
light
targets:
isotopic
enhancement
by
N/Z
1‐
Measurements
at
9.23
MeV/nucleon
for
25Mg
and
25Na
on
natC
and
27Al
targets
2‐
Three
simultaneous
calibraHon
beams
of
4He,
12C,
and
16O
at
6.563
MeV/nucleon
HERACLES:
Details
on
detectors
and
their
arrangement
Detector
Type
Angular
Range
Number
ΔE threshold
in
thickness
MeV/nucleon
Particles to detect
CsI(Tl)
24o-46o
2×16
A=1-6
Phoswich
10.5o-24o
2×16
Si-CsI
Telescope
BaF2-Phos.
6o-10o
8
4.8o-6o
6
100µm
-
P, α ≈1-2
100µm
12C
≈4.6
Z=1-12
50µm
12C
≈3.5
A=1-20
(or more)
A=1-18
(or more)
32S
≈6.6
BaF2
in
phoswich
mode
for
25Mg
on
12C
–
MulHplicity
>
1
BaF2
in
phoswich
mode
for
25Mg
on
12C
–
MulHplicity
>
1
and
the
calibraHon
beams
4He,
12C,
16O
TOF
with
a
BaF2:
ΔT
≈
±
3
ns
Si‐CsI
Telescope
for
25Na
on
12C
and
25Na
on
Au
superimposed
Si‐CsI
Telescope
for
25Mg
on
12C
Z
=
12
Z
=
12
Si‐CsI
Telescope
for
25Mg
on
12C
and
4He,
12C,
and
16O
beams
on
Au
Z
=
12
Si‐CsI
Telescope
for
4He,
12C,
16O
on
Au
tele_fast
1000
htemp
Entries
77148
Mean x
703.9
Mean y
138
RMS x
110.3
RMS y
218.2
900
800
16O
700
102
600
500
12C
400
300
10
200
100
0
0
4He
200
400
600
800
1000 1200 1400 1600 1800 2000
tele_slow
CsI(Tl)
detector:
pulse
shape
analysis
Z
=
2
Z
=
1
M
=
1,2,3
Neutrals
CalibraHon
of
the
CsI(Tl)
detector
25Na
on
Au
Z
=
2
CalibraHon
beams
16O
12C
4He
25Na
on
C
CalibraHon
of
the
CsI(Tl)
detectorwith
the
25Mg
beam
CalibraHon
of
the
CsI(Tl)
detector
with
the
three
calibraHon
beams
Z
idenHficaHon
with
a
thin
fast
scinHllator
in
front
of
a
thick,
slower
one,
both
mounted
on
the
same
PMT
Z
=
10
Z
=
8
Z
=
6
Z
=
4
Z
=
1
Z
=
2
The
three
nuclei
were
in
the
same
beam
at
the
same
energy
per
nucleon,
for
the
same
B‐rho
(magneHc
rigidity)
value
16O
12C
4He
AcHviHes
to
come:
•  ParHcle
idenHficaHon
for
all
spectrum
types
•  Energy
calibraHon
of
all
parHcles
•  ExtracHon
of
isotopic
raHos
of
different
parHcles
for
both
beams,
stable
25Mg
and
25Na
radioacHve
and
different
targets
•  Fragment
and
parHcle
correlaHons
•  Comparisons
with
AMD
calculaHons