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Product Description
The Radiation Monitor is a compact, general purpose survey meters capable of detecting alpha, beta, gamma, and x-rays over 3 selectable ranges. A red count light flashes and a beep sounds with each event detected.
Detector:
Halogen-quenched uncompensated GM tube with thin mica window 1.5-2.0 mg/cm2 thick.
Detects alpha down to 2.5 MeV; typical detection efficiency at 3.6 MeV is greater than 80%. Detects beta at 50 keV with typical 35% detection efficiency. Detects beta at 150 keV with 75% typical detection efficiency. Detects gamma and x-rays down to 10 keV typical through the window, 40 keV minimum through the sidewall of the detector. Normal background is approximately 10-20 CPM. Gamma Sensitivity: 1000 CPM/mR/hr
Specifications:
|
Detector |
Halogen-quenched, uncompensated Geiger-Mueller tube with thin mica end window |
|
Window Size |
1.5 to 2.0 mg/cm² thick; effective diameter is .360” |
| Radiation Detected | Alpha, Beta, Gamma, X-ray |
|
Sensitivity |
Detects alpha down to 2.5 MeV; efficiency at 3.6 MeV > 80% |
|
|
Detects beta at 50 keV w/35% efficiency, at 150 keV w/75% |
|
|
Detects gamma and X rays down to 10 keV thru window, 40 keV minimum through case; gamma sensitivity is 1,000 CPM/mR/hr |
|
Accuracy |
± 10% of full scale, referenced to Cs-137 |
|
Operating Ranges |
0-.5, 0-5, 0-50 mR/hr. and 0-500, 0-5,000, 0-50,000 CPM |
| Optional Meter Range | 0-.5, 0-5, 0-50 mR/hr. and 0-5, 0-50, and 0-500 µSv/hr. |
|
Calibration |
At factory to NBS standard Cesium 137 gamma source |
|
Anti-Saturation |
Holds full scale in fields as high as 100X maximum reading |
|
Power Required |
One 9-volt alkaline battery (included in price of the unit) |
|
Battery Life |
Up to 2,000 hours use at normal background levels |
|
Temperature Rng |
- 20° to + 55° C (- 4° to + 131° F) |
|
Weight |
215 grams (7.6 oz.) with battery |
|
Size |
206 x 71 x 48 mm (8.1 x 2.8 x 1.9 in.) |
|
Indicators |
LED indicator, internally mounted audible beeper for count rate |
| Warranty | One year limited, includes CE mark |
|
Country of Make |
USA |
For a quick video on how to read it:
