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| Détecteur de radiation portatif |
| modèle Digilert 100 |
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| Description |
| The Digilert 100 measures alpha, beta, gamma, and x-rays. Its digital display shows readings in your choice of counts per minute (CPM), mR/hr, or in accumulated counts. A red LED flashes and beeper sounds with each count detected and when the radiation reaches a user set alert level. |
| Specifications |
| Detector | Halogen-quenched GM tube with thin mica end window. Mica window density 1.5-2.0 mg/cm2. Effective window diameter is .360 inch. Side wall is .012 inch thick. |
| Display | 4-digit liquid crystal display with mode indicators. Display updates every 60 sec. |
| Count Light | Red LED flashes with each count. |
| Audio Indicator | Sounds with each count (can be switched off for silent operation). |
| Alert | Pulsating beeper sounds the alert. Three separate adjustable alert levels are used for mR/hr, CPM, µSv/hr:, and Total. |
| Outputs | Dual miniature jack sends counts to CMOS- compatible devices, including computers, data loggers, and educational data collection systems. Submini jack provides audio output to an external earpiece, amplifier, or tape recorder. |
| Operating Range |
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mR/hr - .001 (1µR) to 110 µSv/hr - .01 to 1100 CPM - 0 to 350,000 CPS - 0 to 5000 Total/ Timer - 1 to 9,999,000 counts |
| Accuracy | ±10% typical (NIST), Typically ±15% of reading. |
| Anti-Saturation | Readout will hold at full scale in high radiation fields as high as 100 times the maximum reading |
| Energy Sensitivity | 1000 CPM/mR/hr (Cs137) • 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 typical 75% detection efficiency. • Detects gamma and x-rays down to 10 keV typical through the window, 40 keV minimum through the case. |
| Power Requirements | One 9-volt alkaline battery. |
| Battery Life | Battery life is typically 2000 hours at normal background radiation levels. |
| Temperature Range | -10° to +50°C (14° to 122° F) |
| Weight | 217 g (7.7 oz.) |
| Size | 150 x 80 x 31 mm (6.1 x 3.1 x 1.2 in.). |
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