Radiation detectors

▶ 검출기 : ZnS(Ag) adhered to 0.0254 cm (0.010 in.) thick plastic scintillation material
▶ 효율 (4π) : 20% of 239Pu; 15% of 99Tc; 20% of 90Sr/90Y

▶ 광전자증배관 : 2.9 cm (1.12 in.) diameter

▶ 동작 전압 : typically 500–1200 volts

▶ 윈도우 : 1.2 mg/cm² metalized polyester

▶ 방호스크린 : 0.79 mm (0.03 in.) thick, 6.5 mm (0.26 in.) square openings, 88% open

▶ 스크린 외관 치수 : 167.6 x 92.2 mm (6.6 x 3.6 in.) (L x W)

▶ 윈도우 면적 : Active _ 100 cm² (15.5 in²) active     

                        Open _ 88 cm² (13.6 in²) open
▶ 백그라운드 :   alpha _ 3 cpm or less; beta _ 300 cpm or less

▶ NON-UNIFORMITY: less than 10%

▶ CROSS TALK:

    alpha to beta: < 10%

    beta to alpha: < 1%
▶ 커넥터 : series “C”, unless specified otherwise

▶ 온도범위 : -20 to 50 °C (-4 to 122 °F)

▶ 크기 : 6.4 x 9.5 x 31 cm (2.5 x 3.8 x 12.3 in.) (H x W x L)

▶ 무게 : 0.5 kg (1 lb)