N5 – WP1:
Status and perspectives
G.Losurdo – INFN Firenze/Urbino
H.Grote – AEI Hannover
ILIAS N5 – GWA network
•
Objectives
– Increase the level of EU coordination
– Maximise return on large investments already made
– Enhance the performance of existing detectors
– Prepare the future of this discipline in Europe
– Improve the exchange of infos on subjects of common interest
– Foster the development of common methodologies for joint
observations
•
Working groups:
– WG1: antenna commissioning and characterization
– WG2: joint operations of antennas, network data analysis
– WG3: a european strategy for future antennas
ILIAS-GW N5 JRA – Paris, Nov 6th, 2004
G.Losurdo – INFN Firenze-Urbino
WG1
•
Objectives
– To speed up the commissioning and the characterization of Virgo
and GEO by means of a deeper collaboration between the two
teams
– To develop common methods of characterization of interferometric
GW detectors to be applied to Virgo and GEO
– To provide inputs for establishing priorities for short term
improvements of the existing interferometric detectors on the base
of the Virgo and GEO characterization
•
Budget for travels: 30 keuro/year from 2004 to 2007
ILIAS-GW N5 JRA – Paris, Nov 6th, 2004
G.Losurdo – INFN Firenze-Urbino
From the1st EB meeting minutes
•
Main statement: “We must create a community that represents our
activity…”
•
About the meetings:
– Members of WG1 must meet 4 times/year at the experimental sites.
– Meetings are open to all interested persons belonging to the
network.
– They have to meet twice before August (to be confirmed by the
chairmen)
•
Appointed people have access to the detectors data
•
They have to identify what software tools are missing to perform their
job
ILIAS-GW N5 JRA – Paris, Nov 6th, 2004
G.Losurdo – INFN Firenze-Urbino
The group
S.Hild
H.Grote (co-chairman)
H.Lueck
J.Smith
GEO600
M.Barsuglia
A.Freise
P.La Penna
G.Losurdo (co-chairman)
Virgo
L.Taffarello
M.Visco
Bars
Not a closed group:
we can invite other people involved in WG1 topics to partecipate
ILIAS-GW N5 JRA – Paris, Nov 6th, 2004
G.Losurdo – INFN Firenze-Urbino
WG1: 4-years execution plan
MILESTONES
DELIVERABLES
YEAR 1
Working group set-up
GEO/Virgo noise sources comparison
YEAR 2
GEO/Virgo joint noise characterization
Development of common characterization
algorithms
YEAR 3
GEO/Virgo joint noise characterization
Implementation of common
characterization algorithms
Annual report
GEO/Virgo joint noise characterization
Annual report
Recommandations report for
short term improvements
YEAR 4
ILIAS-GW N5 JRA – Paris, Nov 6th, 2004
Annual report
Annual report
Recommandations report for
short term improvements
G.Losurdo – INFN Firenze-Urbino
1st year milestones
•
Working group set up
– 1st meeting: Cascina, July 2004
– 2nd meeting: Hannover, September 2004
– 3rd meeting: January, TBD
•
Web page set up (meeting agendas, minutes and presentations
available)
•
GEO/Virgo noise sources comparison, work started:
– Comparing detector subsystems
– Comparing detector operation
– Comparing tools for data analysis
– Comparing noise characterization methods
ILIAS-GW N5 JRA – Paris, Nov 6th, 2004
G.Losurdo – INFN Firenze-Urbino
WG1 first meetings goals
•
Keep in touch, know each other
•
Understand where we are and where we are going: talks on detector
•
Develop a common language: talks on single detector subsystems of
•
Noise characterization: talks on noise analysis methods and on data
status
commissioning topics, demos of detector operation
tools
ILIAS-GW N5 JRA – Paris, Nov 6th, 2004
G.Losurdo – INFN Firenze-Urbino
1st meeting agenda
July 7th
July 8th
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Introduction (G.Losurdo)
•
•
Status of the detectors
– Geo (H.Lueck)
– Virgo (A.Freise)
– Bars (M.Visco, L.Taffarello)
Commissioning/Noise
– Geo (J.Smith)
– Virgo (P.La Penna)
– Bars (M.Visco, L.Taffarello)
•
General discussion
•
Commissioning/Subsystems
Locking/Control
– Geo (H.Grote)
– Virgo (M.Barsuglia)
ILIAS-GW N5 JRA – Paris, Nov 6th, 2004
Social lunch (with WG3)
G.Losurdo – INFN Firenze-Urbino
2nd meeting agenda
September 23rd
•
•
•
Data tools and exchange
Commissioning progress
– Geo (H.Lueck)
– Virgo (P. La Penna)
Commissioning/Subsystems
– Virgo suspension control
(G.Losurdo)
– GEO detector operation
(H.Grote)
– GEO detector operation
demo on site (GEO team)
Commissioning/Noise
– Geo (S.Hild)
– Virgo (A.Freise)
September 24th
•
Commissioning/Noise
Noise analysis
– Geo (J.Smith)
– Bars (M.Visco)
Social event: visit to the
nearby animal farm
ILIAS-GW N5 JRA – Paris, Nov 6th, 2004
G.Losurdo – INFN Firenze-Urbino
First achievements
•
All the appointed group members attended both meetings, other
participants present (everybody happy to be there)
•
The discussion has been very deep and partecipated, with plenty of
questions
•
People start understanding similarities/differences in the commissioning
approaches
•
There is a strong will of collaboration and a widely open attitude
•
A first test of data exchange has been done…
ILIAS-GW N5 JRA – Paris, Nov 6th, 2004
G.Losurdo – INFN Firenze-Urbino
GEO data read with Virgo dataDisplay
ILIAS-GW N5 JRA – Paris, Nov 6th, 2004
A.Freise
G.Losurdo – INFN Firenze-Urbino
Analogous Virgo channels: notice how different are the names…
ILIAS-GW N5 JRA – Paris, Nov 6th, 2004
A.Freise
G.Losurdo – INFN Firenze-Urbino
Open “problems”: GEO-Virgo asymmetries
•
We must create a common “dictionary”/language
•
At the moment the meaning of commissioning is different for the two
groups:
– Virgo is working for making the detector fully operative
– GEO is in the phase of noise charaterization
Full locking of Virgo reduces the “gap”
•
The Virgo commissioning group is larger and the organization is
different
ILIAS-GW N5 JRA – Paris, Nov 6th, 2004
G.Losurdo – INFN Firenze-Urbino
Actions for the next future
•
Increase the frequency of the meetings (using video/audio-conference)
•
Invite non-appointed people to give talks
•
Participate to “commissioning meetings” of the two detectors: getting
more involved into the commissioning life of the others
•
Share progressively the noise puzzles, write common internal reports
•
Exchange students for short periods
ILIAS-GW N5 JRA – Paris, Nov 6th, 2004
G.Losurdo – INFN Firenze-Urbino
Noise Projections
J.Smith’s talk, 1st meeting
ILIAS-GW N5 JRA – Paris, Nov 6th, 2004
G.Losurdo – INFN Firenze-Urbino
Effect of the vacuum pump
P.La Penna’s talk, 1st meeting
Between 13h22 (UTC) and 14h40, all pumps are progressively switched off
ZOOM
At 13h59, IB pump switched off
ILIAS-GW N5 JRA – Paris, Nov 6th, 2004
Between 14h40 and 15h00,
original conditions are restored
G.Losurdo – INFN Firenze-Urbino
GAUSSIANITY
M.Visco’s talk, 1st meeting
EXPLORER
NAUTILUS
1 day of data on July 2004
ILIAS-GW N5 JRA – Paris, Nov 6th, 2004
G.Losurdo – INFN Firenze-Urbino
Conclusive remarks
•
A group of people deeply involved in GW detector commissioning has
been set up
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The group can be an open and permanent workshop for collaborative
noise characterization in Virgo and GEO detectors
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There is a lot that we can learn from each other and there is an very
good spirit of collaboration
ILIAS-GW N5 JRA – Paris, Nov 6th, 2004
G.Losurdo – INFN Firenze-Urbino