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

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


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 2856.304 MHz
Modulator HV Power Supply 4.28 (Knob Setting)
RF macro Pulse Length (FWHM) 300 ns
Q1 (A) -10
Q2 (A) -10
Q3 (A) 0
Q4 (A) -2.3
Q5 (A) 2.5
Q6 (A) -3.5
Q7 (A) -6.1
Q8 (A) 0
Q9 (A) +0.6
Q10 (A) -0.4



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


Bend the beam by 45 degree

When we bend the beam by 45 degree, there were too much current on the scintilator. Gun grid voltage is lowered to lower the current.


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 6.42 (Knob Setting)
RF frequency 2856.304 MHz
Modulator HV Power Supply 4.28 (Knob Setting)
RF macro Pulse Length (FWHM) 300 ns
Q1 (A) -10
Q2 (A) -10
Q3 (A) 0
Q4 (A) -2.3
Q5 (A) 2.5
Q6 (A) -3.5
Q7 (A) -6.1
Q8 (A) 0
Q9 (A) +0.6
Q10 (A) -0.4


Bend the beam by 90 degree

same tune as above

W1 D1 (A) D2 (A) Jaw width (cm) Time (s) Counts counts/second conditions
in 5.8 3 0.2 209.9 844 4.02 D1 tuned for 3 Mev, D2 tuned for 1.2694 MeV
in 5.8 5.8 0.2 239.8 1212 5.05 D1 tuned for 3 Mev, D2 tuned for 3 MeV
in 5.8 9 0.2 359.9 1508 4.19 D1 tuned for 3 Mev, D2 tuned for 4.9 MeV

Play with quads

same tune as above, except change in some of the quads.

Change quads: q4, q5, q6, q7, see the change in the rate.

W1 D1 (A) D2 (A) Jaw width (cm) q4 (A) q5 (A) q6 (A) q7 (A) Counts Time (s) counts/second Mean pulse area in the scope conditions
in 5.8 5.8 0.2 - 0 + 0 - 0 - 0 3598 279.9 12.85 D1 tuned for 3 Mev, D2 tuned for 3 MeV
in 5.8 5.8 0.2 - 2 +0 - 0 - 0 3895 299.4 13.01 D1 tuned for 3 Mev, D2 tuned for 3 MeV
in 5.8 5.8 0.2 + 2 +0 - 0 - 0 2757 200.1 13.78 D1 tuned for 3 Mev, D2 tuned for 3 MeV
in 5.8 5.8 0.2 + 2 +2 - 0 - 0 2522 199.9 12.62 D1 tuned for 3 Mev, D2 tuned for 3 MeV
in 5.8 5.8 0.2 + 2 -2 - 0 - 0 3598 244.9 14.69 D1 tuned for 3 Mev, D2 tuned for 3 MeV
in 5.8 5.8 0.2 + 2 -2 - 2 - 0 2996 340 8.81 7.8 n D1 tuned for 3 Mev, D2 tuned for 3 MeV
in 5.8 5.8 0.2 + 2 -2 + 2 - 0 1777 199.9 8.89 8.2 n D1 tuned for 3 Mev, D2 tuned for 3 MeV
in 5.8 5.8 0.2 + 2 -2 + 0 - 0 3746 259.8 14.42 5.1 n D1 tuned for 3 Mev, D2 tuned for 3 MeV
in 5.8 5.8 0.2 + 2 -2 + 0 - 2 3049 220.2 13.85 5.7 n D1 tuned for 3 Mev, D2 tuned for 3 MeV
in 5.8 5.8 0.2 + 2 -2 + 0 + 2 D1 tuned for 3 Mev, D2 tuned for 3 MeV
in 5.8 5.8 0.2 + 2 -2 + 0 + 2 D1 tuned for 3 Mev, D2 tuned for 3 MeV
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