FEATURES
- EXCELLENT ALPHADETECTION
- ZERO BACKGROUND
- RUGGED METAL HOUSING
This is an excellent ALPHA detector with ZERO BACKGROUND in gamma fields, up to 1 R/hr. A low-density Mylar window of 0.7 mg/cm2 enables the high-efficiency detection of alpha down to 3 MeV. The Crystal and PMT are mounted in a shock resistant metal housing.
| SPECS | ASP-2 |
| General Use | Alpha Contamination Surveying and Sample Counting |
| Detector Type | ZnS(Ag) Scintillator |
| CPM Range | 0-999.9 Kcpm or Kcps |
| Window | 0.7 mg/cm2Mylar, protected by a Copper screen (80% open) |
| Window Area | Active – 15.5 cm2 (2.4 in2) Open – 12.3 cm2 (1.9 in2) |
| Efficiency(4π) | Pu239 – 20%, Th230 – 20% |
| Energy Response | 3 MeV – 7 MeV |
| Operating Voltage | 700 – 1100 vdc |
| Normal Background | <.1 cpm |
| Environmental | -20°F[-28°C] to 140°F[60°C] 5-95% RH |
| Connector | BNC (other types available) |
| Dimensions | 2.5″ (6.25cm) Dia x 10″ (25cm) L |
| Weight | 30 oz (0.85 kg) |