| | CNAO @ Jul 2012
Aim
- Redo the Catania/GSI measurements on proton beam on PMMA target.
- Several angles have to be tested: 90 deg, 60 deg, 75 deg
Beam structure. Spill to Spill 3-4 seconds. Spill lasts for 1 second. We are going to study that with the scope
Beam Energy: Computed by simulations (table from G. Battistoni is available)
When?
July 20 - 22 .
- July 20: mounting + first minutes of beam + calibration with source
- July 21: 4 hours of beams... found that the SC are not behaving properly
- July 21-22 night: 8 hours of datataking. First hourse devoted to SC replacement, then few hours at different angles/depths/energies.
Calibrations:
- Lyso0 and Lyso1 have been calibrated with Co60 and Eu152
- t0s for the chambers can be obtained by all the runs together....
Where?
Hall 1. Control room 3m out of corridoio.
GAS
Ar/CO2
- We need to bring the premixed bottle
- Exhaust is ok.
Mechanics
- Rec for electronics? Arrived/mounted... We will bring it.
- Needs to finalize the choice for the mechanical structure (we need to check how it goes with the angles study)
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- beam height
Final setup (Catania like):
- Lyso + collim
- Two Nai at 180 degrees
- New Beam Monitor
Hardware
- New Beam monitor
- 2 NaI detectors.
- Collimator (slit)
- 2 LYSO
- Start Counter [we already have it]
- Palettino before New Beam Monitor?
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Night btw 21/22 july.
- Run: data/MainRun_2107_113mm_run1.dat : verify the impact of changes during the afternoon. A channel from drift chamber is recovered. SC continues to give troubles. Proceed at really low rate (100 Hz daq). Access at 23:40
- Run: data/MainRun_2107_123mm_run2.dat : SC continues to give problems. But now rate is higher. Run 2 is taken at 132.72 MeV (123 mm) (113_run2 is a typo)
- 2:14: intensity is higer, now the transmitted intensity is 50% (before was 20).
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- MainRun_2107_123mm_run4 --> rate osservata e' 1kHz… --> 321k events collected (Si e' spostato di 0.5mm in x positive…. banana plot seems to be worse (dirtier).)
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- MainRun _2107_123mm_run4 --> rate osservata e' 1kHz… --> 321k events collected (Si e' spostato di 0.5mm in x positive…. banana plot seems to be worse (dirtier).)
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- Going back to *20 intensity (ridurre intensita'), we go @ 125mm run5
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- MainRun_2107_125mm_run5 started @ 2:49
- MainRun_2107_121mm_run6 started @ 3:39
- MainRun_2107_129mm_run7 started @ 4:25
- MainRun_2107_117mm_run8 started @ 5:15
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- MainRun _2107_125mm_run5 started @ 2:49
- MainRun _2107_121mm_run6 started @ 3:39
- MainRun _2107_129mm_run7 started @ 4:25
- MainRun _2107_117mm_run8 started @ 5:15
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- Si entra per rimetterci a 90deg
DAQ
Checked that we can bring our WS1 for daq. There will be an ethernet connection from control room to hall: private network to connect to the WS1, and then we have a wireless to connect to outside. We will use a bridge for the acquisition (either usb or fiber).
DAQ config
- TDC multihit ch 0-35: 36 tdc times from beam monitor
- tdc and adc for the NaIs
- Signals from machine?
- RF or monitoring of position/energy
-- AlessioSarti - 2011-11-16
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| META FILEATTACHMENT |
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| META FILEATTACHMENT |
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