Linac Test Area Instrumentation

1
Linac Test Area Instrumentation

• D. Errede, M. Haney (UIUC)
• M. Shea (FNAL)
• 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)

3
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

6
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?

9
Picture of cryo/absorber assembly
10
Time schedule