Tune

Energy Switch	Out (High En)
Solenoid 1	13.9 A
Solenoid 2	4.1 A
Gun Hor	-0 A
Gun Ver	+0.2 A
Output Hor	-0.3 A
Output Ver	-0 A
Rep Rate	17
Gun HV	10 (Knob Setting)
Gun Grid Voltage	10 (Knob Setting)
RF frequency	2856.321 MHz
Modulator HV Power Supply	4.19 (Knob Setting)
RF macro Pulse Length (FWHM)	300 ns
Q1 (A)	-3
Q2 (A)	+0.8
Q3 (A)	+2
Q4 (A)	0
Q5 (A)	0
Q6 (A)	0
Current at FC0	96 mA

DAQ runs

TDC CH5 was a delay of (32+16+8+4+2+1+0.5)+ (16+8+4+2+1+0.5) = 95 nano second.

run#	T1	T2	Sweep Magnet	logic	HV-D2L	HV-D1R	Reprate	start	stop	Int Rate	comments
3679	in	in	out	(DL & GunTrig) or (DR & GunTrig)	1060V	1080V	100	08:48:00	09:28:01	42.3 events/s	ADC12 has Sintilator1 (Sint @ exit of 90 deg).
3680	in	OUT	out	(DL & GunTrig) or (DR & GunTrig)	1060V	1080V	100	09:29:37	09:46:19	42.6 events/s	ADC12 has Sintilator1 (Sint @ exit of 90 deg).
3682	in	OUT	out	(DL & GunTrig) AND (DR & GunTrig)	1150V	1150V	100	09:55:20	10:33:56	4.8884 events/s	TDC cable was upside down, now it is flipped. Sintilator left was put to CH9.
3683	in	IN	out	(DL & GunTrig) AND (DR & GunTrig)	1150V	1150V	100	10:36:03	10:53:48	5.9397 events/s	TDC5->beam left
3684	in	IN	out	(DL & GunTrig) AND (DR & GunTrig)	1150V	1150V	100	10:54:19	11:25:01	8.7974 events/s	TDC3->beam right, TDC5->beam left
3685	in	out	out	(DL & GunTrig) AND (DR & GunTrig)	1150V	1150V	100	11:26:43	11:31:01	18 events/s	junk, rate are too high.

We changed the discriminator from Octal discriminator (LeCroy modle 623B) to 8 CH Constant Fraction Discriminator (CFD) (CAEN model N842). The threshold on the detector beam left is 29, and on the detector right is 31.

Following is the image of coincidence of left and right detectors using this CFD.

run#

T1

T2

Sweep Magnet

logic

HV-D2L

HV-D1R

Reprate

start

stop

Int Rate

Connections

comments

3686

in

out

(DL & GunTrig) AND (DR & GunTrig)

1150V

100

11:54:44

12:15:44 (1260 s)

4.8262 events/s

TDC3->DL, TDC->DR

3687

in

out

(DL & GunTrig) AND (DR & GunTrig)

1150V

100

12:19:15

12:43:14 (1411 s)

3.6 events/s

TDC3->DL, TDC5->DR

3688

in

out

(DL & GunTrig) AND (DR & GunTrig)

1150V

100

12:44:09

13:25:09 (2460 s)

4.9743 events/s

TDC3->DL, TDC12->DR

switched DR from TDC5 to TDC12

3689

in

out

(DL & GunTrig) AND (DR & GunTrig)

1150V

100

13:27:23

14:12:29 (2706 s)

3.3156 events/s

TDC3->DL, TDC12->DR

CFD out-put of DL (to TDC9) and DR (to TDC10) connected to TDC. (Connected to the top row of LeCroy Model 4616.)

3690

in

out

(DL & GunTrig) AND (DR & GunTrig)

1150V

100

14:13:16

15:23:44 (4228 s)

at the beginning was 4.9 then later changed to 13.5111 events/s

TDC3->DL, TDC12->DR

CFD out-put of DL (to TDC9) and DR (to TDC10) connected to TDC. (Connected to the seond row of LeCroy Model 4616.)

3691

in

out

(DL & GunTrig) AND (DR & GunTrig)

1150V

100

14:13:16

16:36:19

14.2079 events/s

TDC3->DL, TDC12->DR

High voltage of scintilator at 90 deg exit set to 1300 V. Scintlator at 90 deg moved to CH13.

3692

in

(DL & GunTrig) AND (DR & GunTrig)

1150V

100

16:40:18

17:00:56

23.9270 events/s

TDC3->DL, TDC12->DR

3694

in

(DL & GunTrig) AND (DR & GunTrig)

1150V

100

10 events/s

TDC3->DL, TDC12->DR

3696

in

(DL & GunTrig) AND (DR & GunTrig)

1150V

100

17:30:08

17:31:39

10 events/s

TDC3->DL, TDC12->DR

Beam Current Calibration of Scint Left

Determine if the Beam Left Scintillator is linear with beam current.

run#	FC1	Scint Left (Ch9)	Reprate	start	stop	Int Rate	comments
3696				17:30:08	17:31:39 ( s)	11 events/s	first measurement at full current
3697				17::	17:: ( s)	events/s	cut the current in half
3698				17::	17:: ( s)	events/s
3699	100 px			17::	17:: ( s)	events/s