Radiation detectors

▶ 작업환경 : splashproof shields and desiccant-vented chamber for outdoor use

▶ 제안장비 : Models 12, 16, 18, 2000, 2200, 2221, 2241, 2350

▶ 검출기 유형 : air proportional
▶ 윈도우 : 0.4 mg/cm² aluminized mylar

▶ 윈도우 면적 : 154 cm² (23.9 in²) active; 100 cm² (15.5 in²) open

▶ 효율 (4π) : 8% for 239Pu

▶ 백그라운드 : 3 cpm or less

▶ 동작 전압 : altitude sensitive

                      sea level - 2050 volts
                      609.6 m (2000 ft) - 2000 volts
                      1524 m (5000 ft) - 1925 volts
                      2134 m (7000 ft) - 1875 volts

▶ 카운터 입계값 설정 : 1.5–2.0 mV

▶ 크기 : 10.2 x 8.9 x 23.6 cm (4 x 3.5 x 9.3 in.) (H x W x L)

▶ 무게 : 0.7 kg (1.5 lb)