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

 Pickup Coil Pulse Recording (PbF2 crystal at z=30cm away)
Oscope pulses were recorded on the pickup 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

 Pickup Coil Pulse Recording (PbF2 crystal at z=30cm away)
Oscope pulses were recorded on the pickup 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).