Linac%20Test%20Area%20Instrumentation

1
Linac Test Area Instrumentation

• D. Errede, M. Haney (UIUC)
• MuCool
• Feb 6, 2002

2
Problem What are the signals to be readout from
the LTA?

• Beam Line (Carol Johnstone)
• Beam Properties Measurements (CJ)
• Cryogenics (Barry Norris)
• A. H2
• B. He
• Experiment
• A. Absorbers (Mary Anne Cummings, Edgar Black)
• B. RF Cavities (Al Moretti)
• C. Solenoid (Al Moretti)

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Beam Line Elements
signals

• 750 KeV Chopper 1
• dipole magnets currents 5
• quad magnet currents 13
• stripping foil 1
• collimater positions - 2 units 8
• ion chamber 1 (in front of beam dump)

4
Beam Properties Measurements
signals

• Tune Parameters ? data set
• Beam Position Monitors 20-40
• Toroid Beam Current Monitor 1 (slow response)
• Fast Beam Current Monitor 1 (fast response)
• Beam Loss Monitors 5-10

5
Cryogenics
signals

• Helium
• inlet temp (carbon) 1
• outlet temp (carbon) 1
• inlet temp (platinum) 1
• outlet temp (platinum) 1
• inlet pressure 1
• outlet pressure 1
• He level 2
• N2 level 1
• solenoid coil temperature (platinum) 4

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Cryogenics
Hydrogen

• inlet temp(carb) 1
• outlet temp(carb) 1
• inlet temp (plat) 1
• outlet temp (plat) 1
• temperature other 6
• inlet pressure 1
• outlet pressure 1
• pump delta press 1
• H2 supply press 1
• H2 vent press 1
• H2 vent pipe press 1
• cryo vacuum press 2

• pump status (run/not) 1
• pump voltage 1
• pump current 1
• pump speed 1
• heater voltage 1
• heater current 1
• heater power 1
• beam permit 1
• hazardous gas 10
• O2 deficiency hazard 8

7
Experiment - Absorber
signals

• temperature 12
• pressure transducers see under cryo
• photogrammetry (??) 2
• laser occlusion sensor (??) 4
• piezo vibration sensors 2
• strain gauges 2
• bolometry ??
• O2 sensors 3per each of 5 flanges 15
• H2 sensors on exhaust line 10
• CCD camera 2 images
• MICE channels ??

8
Experiment - RF, Solenoid
signals

• solenoid current 1
• rad level on chipmunks 10?
• Cavity forward power 1
• cavity reflected power 1
• cavity RF level (E-field?) 2
• cavity vacuum level 2
• timing channels 10?

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Picture of cryo/absorber assembly
10
Time schedule

• Present to Dec 2002 Civil Construction
• Dec 2002 - Beneficial occupancy get into
  building and start installing things.
• 6 mos. (June 2003) to install experimental
  apparatus cryo system safety systems liq H2
  filling system instrumentation
• xxxx in Lab G
• Beginnings Absorber inside Lab G magnet.
• To be determined Does magnet move _at_ t0 or not?
  Open question.
• Absorber either inside magnet or something
  similarly constraining.
• Choice Fill w. somehting else besides liq H2.
• 2nd absorber Japanese absorber queued but not in
  immediately.
• 3 6 mos. for filling and experimenting (2
  absorbers)
• deinstallation and installation schedule
  inefficiency due to cryo/Tevatron
• (we are running parasitically wrt cryo systems)
• Milestones 03 liq H2 filling systems
• complete RF (805 MHz) in situ
• FY04 Complete rest of RF, 201 MHz cavity
• Testing RF at 201 MHz w/Absorber
• Sept 04 Completed solenoid for 201 MHz cavity
• FY05 Beam Installation (Sept 05)
• Dec 2005 Full shakedown, RF Solenoid
  Absorber (201 MHz scenario)