1. October, 2009 Internal Review Beam Instrumentation David Gassner

2. October, 2009 2 Beam Instrumentation Measure –Position –Current –Profiles –Emittance –Loss –Halo –Polarization –Path Length –Arrival Time (phase) versus Beam Energy, M 56 Also Included –Ion Clearing Electrodes –Scrapers –SRF Cavity HOM Power Monitors –Wien Filter (spin rotator) Estimates based on: - BNL Energy Recovery Linac - Colleagues at JLAB CEBAF

3. October, 2009 Position & Current 3 Position & Phase Button pick-up electrodes, 3 apertures sizes: 1cm, 2.5cm, 10cm 231 dual plane BPM’s Libera Brilliance Electronics High accuracy, low drift, built in processor, GB Ethernet, beam inhibit, etc.. Average orbit, 0.1-100mA, Single bunch, 0.1-5nC Multi-pass regions; 6 beams, each different energy, 3 accelerating, 3 decelerating. Path Length, Arrival Time versus Beam Energy, M 56 Strip-line BPM’s (8), and thermally stabilized copper 1-cell cavities (6) Current - Average beam current monitoring, DCCT (10) Bergoz NPCT (New Parametric Current Transformer) Resolution ~ 1uA/sqrt(Hz), DC-10kHz Differential configuration, monitor current recovery %, beam inhibit input. Reduce thermal drift effects by common null current through calibration windings - Single bunches or bunch trains Bergoz Integrating Current Transformer (10) - Faraday Cups: biased, impedance matched (4)

4. October, 2009 4 Loss & Polarization Beam Loss Monitors – Primary Machine Protection Hamamatsu PMT 931B (JLAB) 64 detectors 100nA sensitivity, self test <1us response <10us fast beam turn-off Long Ion chambers (heliax cables), 36 detectors Calibrated, continuous coverage Polarimeters Low Energy - Mott Thin foil target, destructive, low current only, rapid, precise measurements High Energy - Compton Laser, continuous, non-destructive, detect scattered electrons & photons Wien Filter Low energy spin rotator (E & B field) to orient polarization

5. October, 2009 Profile Monitors 5 Profiles (transverse & longitudinal) Screens, YAG & OTR (plunging, FireWire CCD cameras) 64 Synch light (Injector 2, Arcs 7 X 2 = 14) total 16 Halo Monitors (wires, high resolution, but slow) before Linac & each arc (8) Pepper Pot, low energy H & V emittance, using mask & screen Streak Cameras (2) - Hamamatsu C5680 Cherenkov viewer, bunch length, ps resolution Also Included: Ion clearing electrodes, 30 locations, 300V Scrapers at injector, (4) dual jaw, localize halo losses Schottky Diodes (SC Cavity HOM power monitor) 2/cavity Thermal imaging cameras, monitor beam pipe heating at injection (hard to measure losses) JLAB Ion Clearing Electrode

6. October, 2009 Beam Instrumentation Quantities 6 663 items

7. October, 2009 7 Estimate by phase with contingency

8. October, 2009 Labor hours, FTEs, $

9. October, 2009 Estimated Material $