Beam Test Jul 17 2012

Tune

Used tune from yesterday.

Energy Switch	Out (High En)
Solenoid 1	6.9 A
Solenoid 2	1.3 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	2856.320 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

3 MeV tests

Electron beam tune is same as yesterday, tuned for 11.5 region.

Start from where I left from yesterday. Repeat the last measurement from yesterday, so I can reproduce yesterday's condition, and start from there. Yesterday, the sweeping magnet added to the end of the 3rd triplet magnets to sweep the beam.

The Gun grid voltage was set back to 6.42 (knob Setting), similar as the last run on yesterday.

W1	Sweeping magnet	D1 (A)	D2 (A)	Mode	Jaw width (cm)	q4 (A)	q5 (A)	q6 (A)	q7 (A)	q8 (A)	q9 (A)	q10 (A)	Counts	Time (s)	counts/second	conditions
in	out	0	0	photon	0.2	- 2	+2	0	0	0	-0.6	- 0.4	1163	305.7	3.80	Beam tuned to 0 deg
in	out	0	-5.8	positron	0.2	- 2	+2	0	0	0	-0.6	- 0.4	1401	378.5	3.70	Beam tuned to 0 deg
in	out	-5.8	-5.8	positron	0.2	- 2	+2	0	0	0	-0.6	- 0.4	1362	349.6	3.90
in	out	0	0		0.2	- 2	+2	0	0	0	-0.6	- 0.4	1204	315.1	3.82
in	out	-5.8	5.8		0.2	- 2	+2	0	0	0	-0.6	- 0.4	1292	359.8	3.59
in	out	-5.8	5.8		0.2	- 2	+2	0	0	0	-0.6	- 0.4	566	150.1	3.77
in	out	5.8	5.8	electron	0.2	- 2	+2	0	0	0	-0.6	- 0.4	1417	220	6.44	D1 & D2 tuned for 3 Mev electron. Quads are still in positron mode setting.
in	out	5.8	5.8	electron	0.2	+ 2	-2	0	0	0	+0.6	+ 0.4	2467	219.8	11.22	D1 & D2 tuned for 3 Mev electron.