GSI @ OCT
Aim
- Charged studies. Done using: 2 chmbs + scint @ 90 degrees. Real profile measured with TLD (1mm reso). 1 point to measure a 3D blob. Then finer studies. need to quantify the needed stat.
- Charged studies VS angle. Done using: 2 chmbs + scint @ 90 degrees.
When?
Beam time schedule
Starting from 12th October. Setting of cave takes ~ 2 days. Ends 16th October.
- Everyone should leave th 10th of October
- Someone should come back 15th Oct, someone after dismounting (18).
Tentative schedule
- 8-11 Mounting
- 11-13 Cave M setup
- 13-14 Beam time
-
Where
Cave M. (Medical).
Before 12 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 on top of phantom: old chmb + BaF (or other fast scintillator)
- One arm is fixed @ 90 degrees (collimator, BaF, veto)
Hardware
Gas system
Already @ GSI
- Gas system.
- Gas bottle (premixed 82/18 Ar Co2)
Chambers fluxed in series.
Detectors
Already @ GSI
- 2mm Start counter or Daisy!
- New Chmb
- 1 (or 2) BaF scintillators
- Collimator?
- Veto?
To be brought from Roma1
- Old Chamber+ cables.
- 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
The elog of the TB can be found here
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
- QDC 1 (Baf): Gate 500ns, Ch0 --> SC, Ch1 --> Palettino, Ch2 --> LYSO1, Ch3 --> LYSO2
- QDC 0 (Baf1, Ex Multianode): Multianode 8 Ch (0,1 & 4-15) from P1, 58, 34, 26, 18, 10, 59, 51, 43, 35, 27, 19, 11, 3 Delayed by 8-900 ns. Ch2,3 delayed by 300ns (P50, P42).
- QDC 2 (Bad2): Empty
TDC
- TDC 64 ch:
- TDC 16 ch: 0--7 New Chmb. Ch 12 (sync signal). Ch 13: or of triggers.
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 - 2011-09-20