野外伽馬能譜儀GS-512i特點(diǎn) 512通道@0,1 to 3 MeV范圍 8 個(gè) ROI區(qū)域設(shè)置 內(nèi)存高達(dá)7500個(gè)光譜 Pile-Up rejector to detect and discard double peaks 自動(dòng)光譜穩(wěn)定采用137Cs or 133Ba同位素 計(jì)算機(jī)軟件處理數(shù)據(jù)傳輸數(shù)據(jù) 可從計(jì)算機(jī)上控制 組合模式 – K, U, Th in % or ppm 劑量率nG/h 測(cè)試板標(biāo)定 探測(cè)器NaI 3″x 3″ 大尺寸LCD液晶屏顯示 GPS通過藍(lán)牙連接 野外伽馬能譜儀GS-512i規(guī)格 放大器: 半高斯脈沖整形,1μs時(shí)間, DC restoration, digitally controlled gain +/- 25 % 數(shù)模轉(zhuǎn)換器(ADC): Successive Approximation ADC, 16Bit, 1.33MSPS, conversion time 0.8 μs 通道寬度: 5 mV, input voltage range: 50 mV to 2.5 V 差分非線性: max. 1 % in the range 50 mV to 2.5 V 集成非線性: max. 0.3 % in the range 50 mV to 2.5 V 零漂移: 2 mV/10 °C 輸入計(jì)數(shù): 50 000 counts per second with a peak displacement, due to zero shift, inferior to 1 % 通道分析儀: The 512 channels, max. (232 – 1) counts per channel live time mode of collection setting in the range 5 s to 23:59:59 數(shù)字光譜穩(wěn)定器: Range of reference peak setting is 40 – 500 channel, control range is ± 25 %, stabilization sensitivity 0.5 % 內(nèi)存: Memory for up to 7500 complete spectra. 接口: USB 2.0 or BlueTooth for data transfer and remote control, Bluetooth can be used to connect to BlueTooth GPS 鍵盤: 20 push-buttons membrane-type, dust resistant, water-tight, weather-proof 顯示: Graphical LCD 240 x 128 dots 聲音報(bào)警: 1 kHz buzzer 內(nèi)部電源: 6 alkaline battery LR6 AA 1.5 V or 6 accumulators type HiMH 1.2 V 外部電源: 8 – 15 V/400 mA 尺寸: 228 x 83 x 110 mm 重量: 1.5 kg with batteries