主要规格及技术指标

"Technical Specification:
Main configuration: 1. Ortec GWL series HPGe Well detector low background detector with OFHC Cu endcap and high purity Al well tube, remote preamplifier and HV filter for use with HR cryostat. 2. Low-background J-type cryostat with remote preamp and Dewar. 3. Mobius recycler for purchase in combination with any streamline detector and a CFG-HJ cryostat. 4. Lead shield for CFG-HJ cryostat. 5. DSPEC-LF with MAESTRO-32 software and DIM-POSGE, for use with non-SMART-1 detector. 6. Gamma vision Gamma-ray HPGe spectral analysis. 7. 50-Liter Dewar.
主要配置： 1. 井式高纯锗探测器，晶体体积120cc，井深40mm,井直径15.5mm。低本底选项：高纯无氧铜外罩，高纯铝井壁，HJ弯头冷指。2. 低本底HJ弯头冷指。3. 液氮回收冷凝器。4. 适合HJ弯头冷指的顶开门低本底铅室。5. 数字化谱仪，含Maestro基本谱获取软件和正高压模块。6. 中文谱分析软件包，含控制、获取、分析、报告与质保等完整功能。7. 50升液氮储运罐。
Main technical parameters：
1. Energy resolution FWHM: for 122 keV peak (Co-57): ≤ 1.4kev; for 1.332 MeV peak (Co-60): ≤ 2.3kev;
2. Energy response range: 10 keV – 10 MeV;
3. Maximum data passing rate: greater than 100kcps;
4. It has the functions of low frequency noise suppression, automatic optimization, automatic pole zero, zero dead time correction and virtual oscilloscope;
5. Integral nonlinearity: ≤± 0.025%; differential nonlinearity: ≤± 1%;
6. Digital spectrum stabilizer: the gain and zero point are controlled and stabilized by computer;
7. Temperature coefficient: gain: ≤ 35ppm / C, zero point: ≤ 3 ppm / C;
8. Pulse anti accumulation: automatically set the threshold value, and the resolution of pulse pair is 500 ns
主要技术指标：
1. 能量分辨率FWHM：对122 keV峰（Co-57）：≤ 1.4keV；对1.332 MeV峰（Co-60）：≤ 2.3keV；
2. 能量响应范围：10 keV – 10 MeV；
3. 最大数据通过率：大于100kcps；
4. 具有低频噪声抑制、自动最优化、自动极零、零死时间校正和虚拟示波器等功能；
5. 积分非线性：≤0.025%；微分非线性：≤1%；
6. 数字化稳谱器：由计算机控制并稳定增益和零点；
7. 温度系数：增益：≤35ppm/C ，零点：≤3 ppm/C；
8. 脉冲抗堆积：自动设定域值，脉冲对分辨率为500 ns
"

主要功能及特色

Features and application:
High purity germanium gamma spectrometer uses the probe to detect the gamma ray emitted by nuclide in the sample, and turns it into a signal into a digital spectrometer. The pulse signal is transformed into a spectrum to calculate the activity of this nuclide, so as to analyze the activity of radioactive nuclides in water, soil, solid, aerosol and sediment. The instrument can be used for geomorphological evolution and scale analysis of different landscapes, such as forests, grasslands and marine ecosystems, and can also be used to study soil erosion development rules through rainfall indoors. It is an important instrument for the teaching and scientific research of geography, geology, environmental science, oceanography, radiology, nuclear physics, pedology, archaeology, etc.
高纯锗γ谱仪利用探头检测样品中的核素放出的γ射线，变成信号进入数字化谱仪中，把脉冲信号变为谱图来进行计算得知这种核素的活度，从而分析水、土壤、固体、气溶胶、沉降物中的放射性核素活度。该仪器可应用于不同景观如森林、草地和海洋生态系统地貌演化及其尺度分析，也可以在室内通过降雨研究土壤侵蚀发育规律。它是开展地理学、地质学、环境学、海洋学、放射医学、核物理学、土壤学、考古学等方面的教学及科学研究工作重要的仪器设备。

主要附件及配置

无