HRRL Dec 20 2012Run

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3 MeV Spot on the Flag Tune

Beam is spread over the flag. Can not be focused.

Energy Switch Out (High En)
Solenoid 1 top 8.2 A
Solenoid 2 bottom 15.8 A
Gun Hor -0 A
Gun Ver -0.1 A
Output Hor -0.3 A
Output Ver +0 A
Rep Rate 300
Gun HV 10 (Knob Setting)
Gun Grid Voltage 10 (Knob Setting)
RF frequency 2856.530 MHz
Modulator HV Power Supply 3.73 (Knob Setting)
RF macro Pulse Length (FWHM) 300 ns
Q1 (A) +0
Q2 (A) -0
Q3 (A) -0.6
Q4 (A) -0
Q5 (A) -0
Q6 (A) -0.8
D1 (A) 5.8
Q7 (A) -1.5
D2 (A) 5.8 (6.0 on shunt)
Q8 (A) 0
Q9 (A) -0
Q10 (A) -0
Steering coil at 90 deg beamline (A) 18 Amp
Current at FC0 3 mA

3 MeV Spot on the Flag plus 90 deg exit scintillator Tune

Scintilator blocked the beam spot. We see a darker area.

Energy in for low energy.

Energy Switch Out (High En)
Solenoid 1 top 6.9 A
Solenoid 2 bottom 15.3 A
Gun Hor -0 A
Gun Ver -0.1 A
Output Hor -0.3 A
Output Ver +0 A
Rep Rate 300
Gun HV 10 (Knob Setting)
Gun Grid Voltage 10 (Knob Setting)
RF frequency 2856.530 MHz
Modulator HV Power Supply 3.73 (Knob Setting)
RF macro Pulse Length (FWHM) 300 ns
Q1 (A) +0
Q2 (A) -0
Q3 (A) -1.7
Q4 (A) -0
Q5 (A) -0
Q6 (A) -1
D1 (A) 5.8
Q7 (A) -2
D2 (A) 5.8 (6.0 on shunt)
Q8 (A) 0
Q9 (A) -0
Q10 (A) -0
Steering coil at 90 deg beamline (A) off
Current at FC0 3 mA


12ish MeV Electron on T1

Scintilator blocked the beam spot. We see a darker area.

Energy out for high energy.

Energy Switch Out (High En)
Solenoid 1 top 6.9 A
Solenoid 2 bottom 15.3 A
Gun Hor +0.2 A
Gun Ver +0.1 A
Output Hor -0 A
Output Ver +0.4 A
Rep Rate 300
Gun HV 10 (Knob Setting)
Gun Grid Voltage 10 (Knob Setting)
RF frequency 2856.250 MHz
Modulator HV Power Supply 4.30 (Knob Setting)
RF macro Pulse Length (FWHM) 300 ns
Q1 (A) +4.6
Q2 (A) +7.6
Q3 (A) +2.6
Q4 (A) -0
Q5 (A) -0
Q6 (A) -1
D1 (A) 5.8
Q7 (A) -2
D2 (A) 5.8 (6.0 on shunt)
Q8 (A) 0
Q9 (A) -0
Q10 (A) -0
Steering coil at 90 deg beamline (A) off
Current at FC0 3 mA


Source runs with RF on

Detectors were placed on the top of the beam dump shielding. RF is on while taking these runs. These test to test the effect of the RF on the 511 keV peak of the NaI detectors.


Run # Source logic Run starts Run ends HV NaI Left (CH3) (Det#1) HV NaI R Right (CH9) (Det#2) Note
4625 Na22 NaI Right && NaI Left 1100 V 1190 V Energy switch in, Low energy region, 5.4 MeV Run
4626 is Junk
4627 Na22 NaI Right && NaI Left 1100 V 1190 V Energy switch out, High energy region, 12.7 MeV Run