WB Johnson Instruments products

Probes

GP-200

END WINDOW GM
Description
- 1.6 mg/cm2 Window
- Good Sensitivity to 14C, 32P, 35S & 137CS Contamination
- Good Gamma Dose
- .1 MeV to 1.5 MeV-BNC Connector
Application
- General Purpose Alpha, Beta, Gamma Contamination Monitoring
- 200 mR/hr Gamma Dose Monitoring (Based on 137Cs calibration)

HP-265

PANCAKE GM
Description
- 1.6 mg/cm2 Window
- Good Sensitivity to 14C, 32P, 35S & 137CS Contamination
- Good Gamma Dose
- .1 MeV to 1.5 MeV-BNC Connector
Application
General Purpose Alpha, Beta, Gamma Contamination Monitoring
20 mR/hr Gamma Dose Monitoring (Based on 137Cs calibration)

PPA-2T

PANCAKE GM
Description
- 1.6 mg/cm2 Window
- w/Tungsten Back Shield
- Best Sensitivity to 14C, 32P, 35S & 137CS Contamination
- BNC Connector
Application
- Lowest Background
- Excellent General Purpose Gamma Contamination

GLE-1

LOW ENERGY GAMMA SCINTILLATION
Description
- Best for Iodine 125 & other Low Energy Gamma Contamination
- 1` X 2 mm Crystal
- w/7 mg/cm2 Window
- Magnetically Shielded BNC Connector
Application
Most Sensitive I-125 Monitor
Excellent Low Energy Gamma Monitoring (Cannot be dose calibrated)

GSP-1

1` x 1` GAMMA SCINTILLATION
Description
- 35 mg/cm2Window
- Magnetically Shielded & Shock Mounted Background
- Approx. 200 CPM/µR/hr
- Magnetically Shielded - BNC Connector
Application
General Purpose Gamma Contamination & Spectroscopy Monitoring

GSP-2

2` x 2` GAMMA SCINTILLATION
Description
- 35 mg/cm2Window
- Magnetically Shielded & Shock Mounted Background
- Approximately 200 CPM/µR/hr w/900 VDC
- Magnetically Shielded - BNC Connector
Application
General Purpose Gamma Contamination & Spectroscopy Monitoring

ASP-2A

2` x ALPHA SCINTILLATION
Description
- .5 mg/cm2Window
- Magnetically Shielded & Shock Mounted
- Low Background
- BNC Connector
Application
- High Sensitivity to Alpha Contamination 40+%
- Efficiency to Americium 241