Beam Test Jul 16 2012

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Camera Trig

Tune the beam for 15 MeV range, see the beam with camera. Get camera triggering.

Tune The Beam for 11-12 MeV

Energy Switch Out (High En)
Solenoid 1 6.8 A
Solenoid 2 1.2 A
Gun Hor -0.1 A
Gun Ver 0 A
Output Hor +0.2 A
Output Ver +0.4 A
Rep Rate 8
Gun HV 10 (Knob Setting)
Gun Grid Voltage 10 (Knob Setting)
RF frequency 2856.272 MHz
Modulator HV Power Supply 4.28 (Knob Setting)
RF macro Pulse Length (FWHM) 300 ns
Q1 (A) -2.6
Q2 (A) -3.2
Q3 (A) -3.6
Q4 (A) -1.5
Q5 (A) +0.7
Q6 (A) -3.6

Beam Current 0 degree FC: Hrrl pos 16jul2012 FC0.png

Beam Spot at 0 degree OTR screen: Hrrl pos 16jul2012 OTR0.png


Scintillator pulse count

Energy Switch Out (High En)
Solenoid 1 6.8 A
Solenoid 2 1.2 A
Gun Hor 0 A
Gun Ver 0.2 A
Output Hor 1.2 A
Output Ver 0 A
Rep Rate 8
Gun HV 10 (Knob Setting)
Gun Grid Voltage 10 (Knob Setting)
RF frequency 2856.272 MHz
Modulator HV Power Supply 4.28 (Knob Setting)
RF macro Pulse Length (FWHM) 300 ns
Q1 (A) -2.6
Q2 (A) -3.2
Q3 (A) -3.6
Q4 (A) -1.5
Q5 (A) +0.7
Q6 (A) -3.6

Scintillator is located at the end of the 90 degree beamlien (after the thin window). Rates measured with W1 in and out.

W1 Time (s) D1 (A) Jaws Counts counts/second conditions
in 209.1 0 Full open 1842 8.81 tuned to fc1 10 MeV
out 192.5 0 Full open 1052 5.46 tuned to fc1 10 MeV
in 226 2.5 Full open 2082 9.21 tuned to fc2 1 MeV
in 205 18.8 Full open 1784 8.7 tuned to fc2 10 MeV
out 18.8 Full open too much pile-ups tuned to fc2 10 MeV


W1 D1 (A) D2 (A) Jaw width (cm) Time (s) Counts counts/second conditions
in 5.8 3 209.9 0.2 844 D1 tuned for 3 Mev, D2 tuned for 1.2694 MeV
in 5.8 5.8 0.2 D1 tuned for 3 Mev, D2 tuned for 3 MeV