GSI @ OCT
Aim
- We are going to use silvio as target. Monoenergetic: 200/220 MeV/u. PMMA or poly for modeling... Transversal dimension?
- One arm: chamber + LYSO (charged particles flux + shape along z)
- Other arm: Baf + collimator+ CMOS ?
When?
Starting from 9-14 May. Setting of cave takes ~ 1 day. We are going to have 1-2 shifts.
- We start the 10th of May
- We end the 15th May
Tentative schedule
- To be done.
Where
Cave A.
Before 10 setting of the cave + quality check of the beam.
Mechanics
Rec with wheels. (dismounting)
Table + arms to hold detectors.
- One start counter BEFORE the phantom.
- One arm should move in theta: New BM + LYso
- One arm is fixed @ 90 degrees (collimator, BaF, veto)
Target
- 5x5x20 PMMA
- 20x20x20 PMMA
- Testa (silvio)
Hardware
Gas system
Already @ GSI
- Gas system.
- Gas bottle (premixed 82/18 Ar Co2)
Chambers fluxed in series.
Detectors
To be brought from roma1.
- New Chmb
- 1 (or 2) BaF scintillators
- Collimator?
- Veto?
Detectors @ GSI.
To be brought from Roma1
- New Start Counter read with two H10580 PMT, SC thickness: plexiglass 1,8 mm :: Aluminum foil 0,05 mm :: Black tape 0,25 mm
- Lyso
Power supply
Already @ GSI
- LV power supply: 4 channels. (for the two chambers)
To be brought from Roma1
- HV: any other needed channel.
- HV: 4 channels. [3 channels for the two chambers.]
Channels:
- HV:
- 3chs (New and OLd chmb)
- 2chs (BaF)
- 2chs HV
- 1ch Start Counter GSI
- 1ch veto
- LV:
- 4 channels (2 chambers)
- 2 channels (Daisy)
Electronics
Already @ GSI
- Crate Nim (ex FIRST trigger)
- Crate VME
- Scope (?)
- Crate Camac (?)
To be brought from Roma1
NIM Modules
- Most of them are @ GSI: nim/ecl translators, discriminators....
- Nim/TTL translator (GSI)
VME Modules
- 3 QDC modules: 2 Roma1, 1 GSI
- 2 TDC modules: 1190 + ? KLOE TDCs? GSI TDC?
- I/O
- Scaler
Delay modules?
Cables
DAQ
- Signal from TPS for Energy switch?
- Bridged ACQ.
ELOG
<a href="http://pcaen1.ing2.uniroma1.it:8060/gsioct11/" title="TB elog">The elog of the TB can be found here</a>
Software
@ CT : 30 min, 300 evt, 600 mum precision with 17*10^8 particles.
Acquisition
Being developed on workstation2. Project is under svn.
svn co svn+ssh://<youraccount>@pcaen1.ing2.uniroma1.it/home/sarti/SvnRepos/TestBeamCode/GsiOct_2011_Bridge
Decoding
Being developed on workstation2. Project is under svn.
svn co svn+ssh://<youraccount>@pcaen1.ing2.uniroma1.it/home/sarti/SvnRepos/TestBeamCode/GsiOct_2011_BridgeDecode
Configuration
As of 13 Oct 2011 @ 15:00.
QDC
TDC
Strategy
-
Calibration of detectors
- Lyso: should we calibrate?
- BM: how much time do we need to have ST relations? Look at BTF.... to see if we can use the old ST without new calibration
--
AlessioSarti - 2012-03-06