09-07-2016

No target collimator open

Beam Conditions

11.1 MeV , 2 ns pulse width

Detector HV

=-1700 Volts on all detectors

Run #	D90 Rate (Counts/pulse)	Configuration
5277		11.1 MeV , 2 ns pulse width , 850 mA , 60 Hz , Collimators wide open , radiator out , Tuning
5286	.18	11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Collimators wide open , radiator 3/4" Al , Target is 3/4 thick Al @ 90 degree to beam
5288	0.14	11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Collimators wide open , radiator Out , Target is 3/4 thick Al @ 90 degree to beam
5289	0.02	11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Accelerator side collimator open, Cell side collimator closed , radiator Out , Target is 3/4 thick Al @ 90 degree to beam, Block cell on accelerator side to measure shower from beam dump with max e- hitting dump
5290	0.001	11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Accelerator side collimator open, Cell side collimator closed , radiator Out , Target is 3/4 thick Al @ 90 degree to beam, Block cell on accelerator side to measure shower from beam dump with max e- hitting dump, RF OFF a.k.a no beam
5291	0.01	11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Accelerator side collimator open, Cell side collimator closed , radiator 3/4" IN , Target is 3/4 thick Al @ 90 degree to beam, Block cell on accelerator side
5292	0.01	11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Accelerator side collimator open, Cell side collimator closed , radiator 1.5" IN , Target is 3/4 thick Al @ 90 degree to beam, Block cell on accelerator side
5293	0.23	11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Accelerator side collimator open, Cell side collimator OPEN , radiator 3/4" IN , Target is 3/4 thick Al @ 90 degree to beam, UNBlock cell on accelerator side
5294	0.08	11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Accelerator side collimator open, Cell side collimator OPEN , radiator 3/4" IN , Target is OUT, UNBlock cell on accelerator side
5295	0.00969	11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Accelerator side collimator open, Cell side collimator OPEN , radiator 3/4" IN , Target is DU, UNBlock cell on accelerator side

DU cylinder target

Beam Conditions

11.1 MeV , 2 ns pulse width

1” Al radiator, collimator slit open, HV -1700V,*Find lowest thresholds to run.

Run #	D90 n Rate (Counts/pulse)	Configuration
5295	0.01	11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Accelerator side collimator open, Cell side collimator OPEN , radiator 3/4" IN , Target is DU, UNBlock cell on accelerator side
5296	0.01898	11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Accelerator side collimator open to 0.8 cm, Cell side collimator OPEN to 2 cm , radiator 3/4" IN , Target is DU
5297		11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Accelerator side collimator open to 0.8 cm, Cell side collimator OPEN to 2 cm , radiator 3/4" IN , Target is DU , D30 HV changed from -1700 to -1550V, All other detectors at -1700 V,moved stand below pair spectrometer magnet, added 2 borated poly bricks to catch positrons and 4" unborated poly to catch electrons exiting pair spectrometer magnet,
5298		11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Accelerator side collimator open to 0.8 cm, Cell side collimator OPEN to 2 cm , radiator 3/4" IN , Target is DU , D30 HV changed -1550V, All other detectors at -1700 V, removed pair spectrometer magnet, poly, and stand,
5299		11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Accelerator side collimator open to 0.8 cm, Cell side collimator OPEN to 2 cm , radiator 3/4" IN , Target is Empty , D30 HV changed -1550V, All other detectors at -1700 V, removed pair spectrometer magnet, poly, and stand,