PbF2 CrystalNumber16

Below are the resulting transparency measurements for PbF2 block # 16

12/3/07

Accelerator Settings

beam energy	20 MeV
Rep Rate:	30 Hz
I_peak:	60 mA/pulse
pulse width:	0.1 [math]\mu[/math]s (100 ns)
beam start:	15:39
beam stop:	16:39

Pick-up Coil Pulse Recording (PbF2 crystal at z=30cm away)

O-scope pulses were recorded on the pick-up coil with dimensions in inches and the intensity measured in Volt [math]\times[/math] ns

@16:00

@16:05

@16:10

@16:15

@16:20

@16:25

@16:30

@16:39

Dose rate measurements (@1643 hours)

[math]\gamma[/math]-radiation	3.5 mR/hr
[math]\beta[/math]-radiation:	12 mR/hr

Dose rate measurements (@1532 hours)

[math]\gamma[/math]-radiation	3 mR/hr
[math]\beta[/math]-radiation:	7 mR/hr

12/4/07

Transparency measurements (@0957 hours)

Under Blue light for 19 hours before next irradiation.

12/5/07

Accelerator Settings

beam energy	20 MeV
Rep Rate:	30 Hz
I_peak:	60 mA/pulse
pulse width:	0.1 [math]\mu[/math]s (100 ns)
beam start:	08:38
beam stop:	10:38

Pick-up Coil Pulse Recording (PbF2 crystal at z=30cm away)

O-scope pulses were recorded on the pick-up coil with dimensions in inches and the intensity measured in Volt [math]\times[/math] ns

@8:57

@9:07

@9:17

@9:27

@9:37

@9:47

@9:57

@10:07

@10:17

@10:27

Dose rate measurements (@1040 hours)

[math]\gamma[/math]-radiation	2 mR/hr
[math]\beta[/math]-radiation:	3 mR/hr

After: Just after 2nd irradiation (2 hours). Light brown color (translucent).