CNAO @ Feb 2012
Aim
- 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.
Beam structure. Spill to Spill 3-4 seconds. Spill lasts for 1 second. We are going to study that with the scope
Beam Energy: need of a too long PMMA ... now we have 10-22 cm... Beam Spot 0.9 -- 1.1 cm...
TPS that have to be prepared.
- 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]
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.
- Thursday night we need (beam) time to
- Acquire t0s for BM
- check that ST relations are fine
- Calibrate NaI?
- Calibrate LYSO?
Where?
Hall 1. Control room 3m out of corridoio (needed to check cables lenght).
- Long Cables can exit from experimental hall: to be checked as a function of cable thickness.
- 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
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)
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?
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).
signals we would like to acquire
- 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