The GM pancake-type detector in the Model 44-9 is arguably the most popular radiation detector used throughout the world. This detector is sensitive to alpha, beta, and gamma radiation, is enclosed within a rugged metal enclosure, and is conveniently shaped and sized for checking contamination on people and objects.
Detector
Thin window Geiger-Muller
| GENERAL | alpha, beta, gamma survey; sample counting |
|---|---|
| Compatibility | Ludlum Model 3 & Model 3-IS |
| Operating Voltage | 900 vdc |
| Window | 1.7 + 0.3 mg/cm² mica |
| Window Area |
15 cm² (2.3 in²) active, 12 cm² (1.9 in²) open |
| Efficiency | 5% for 14C; 22% for 90Sr/90Y; 19% for 99Tc; 32% for 32P; 15% for 239Pu, ≤ 1% for 99mTc; 0.2% for 125 |
| Energy Response | energy dependant |
| Sensitive Area | 15 cm² (2.3 in²) active, 12 cm² (1.9 in²) open |
| Finish | Tan Powder Coat |
| Dimensions | 4.6 x 6.9 x 27.2 cm (1.8 x 2.7 x 10.7 in.) (H x W x L) |
| Environmental | -15 to 50 °C (5 to 122 °F), may be certified for operation from -40 to 65 °C (-40 to 150 °F) |
| Weight | 1 lb (0.5kg) |
