| | CNAO @ Jul 2012
Aim |
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- Target? PMMA
- Particle rates? Up to GHz. We are going to need ~ 1 MHz. Seems to be feasible: degrader can be added and we are also building a collimator.
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- Redo the Catania/GSI measurements on proton beam on PMMA target.
- Several angles have to be tested: 90 deg, 60 deg, 75 deg
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| | Beam structure. Spill to Spill 3-4 seconds. Spill lasts for 1 second. We are going to study that with the scope |
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< | Beam Energy: need of a too long PMMA ... now we have 10-22 cm... Beam Spot 0.9 -- 1.1 cm... |
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> | Beam Energy: Computed by simulations (table from G. Battistoni is available) |
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< | TPS that have to be prepared. |
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> | When? |
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- STILL a DRAFT
- First night: Take 1 PMMA cylinder and I see what happens varying the angle.Publish fluxes of protons from PMMA. I want to give 1 Gy (treatment like).
Measurements:
- We are going to redo Catania: different energies and different angles.
When? [Draft for time plan] |
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< | Februrary 9 -12 ... For 2 nights.... (16 hours).
- Thursday (9/2) we star, but friday morning we go back to stealth [patient being treated]: during the night we try to calibrate everything!
- With Radioactive sources we calibrate LYSOs and NAIs, with beam (if possible) we calibrate the Beam Monitor
- Friday we install everything on the final geometry.
- Saturday and Sunday we take data
Calibrations: when?
- Detectors should be already calibrated, we measure a reference point on the final setup on thursday night.
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> | 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....
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- Thursday night we need (beam) time to
- Acquire t0s for BM
- check that ST relations are fine
- Calibrate NaI?
- Calibrate LYSO?
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| | Where? |
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< | Hall 1. Control room 3m out of corridoio (needed to check cables lenght). |
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> | Hall 1. Control room 3m out of corridoio. |
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- Long Cables can exit from experimental hall: to be checked as a function of cable thickness.
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- Patch Panel available to read signals in control room..
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- There are several IN<->OUT from hall to control room: a complete list of signals that we want outside should be made and Xcheked with available connections
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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)
- Need to know:
- 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?
ELOG
The elog |
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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).
- 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).)
- Going back to *20 intensity (ridurre intensita'), we go @ 125mm run5
- 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
- Si entra per rimetterci a 90deg
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| | 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). |
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< | signals we would like to acquire
- 36 tdc times from beam monitor
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- TDC multihit ch 0-35: 36 tdc times from beam monitor
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- tdc and adc for the NaIs
- Signals from machine?
- RF or monitoring of position/energy
-- AlessioSarti - 2011-11-16
| META FILEATTACHMENT |
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| META FILEATTACHMENT |
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| META FILEATTACHMENT |
attachment="sezione.pdf" attr="" comment="Sketch of halls and control rooms" date="1321458951" name="sezione.pdf" path="sezione.pdf" size="24753" user="AlessioSarti" version="1" |
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