Nuclear Instruments
Section One .Laboratory Radiation Measuring Instruments Section Two.Portable Style Radiation Detection Instrument Section Three.Radioactive contamination monitor Section Four.Radioactive waste measurements Section Five.Underwater Radioactivity Measuring Device Section Six.Area Radiation Measurement Section Seven.Tritium Air Monitors
HOME > PRODUCT > Nuclear Instruments > Section Four.Radioactive waste measurements > TK-402 In-Situ High-Purity Germanium Gamma Spectrometer Measurement System
In-Situ High-Purity Germanium Gamma Spectrometer Measurement System
Product details



Fig. 1 In-situ high purity germanium gamma spectrometer measurement system

. Product Introduction

l  Plane or coaxial high purity germanium detector is equipped with a pre-amplifier set in the portable refrigeration unit;

l  Multi-channel spectrometer;

l  Data analysis software package is provided, including hardware settings, energy spectrum acquisition and analysis, and sourcelesse efficiency calibration;

l  Lead shielded device with a collimator;

l  Trolleys and transport cases;

l  Laser range finder;

l  Accessories: liquid nitrogen filling funnel, power supply, etc.;

l  Cables and text descriptions;

l  A specially developed sourceless efficiency calibration software is used to calculate the detection efficiency of the measurement object with complex shape.

. Main Features

l  Optimal size and weight for portable Application

l   Placed on a trolley of a lead shield collimator;

l  With the liquid nitrogen filled, the detector can reach the cooling temperature in a very short time;

l  Simple operation and maintenance;

l  Laser measurement instructions;

l  In any direction within 360°;

.Technical Specifications



Energy range (keV): 

Standard type

Extended type




High purity germanium detector efficiency (%):

The typical value is 30; detectors with   other efficiency is optional

Energy resolution of 30% efficiency detector (keV)






Peak – to – Compton ratio


Refrigeration time (h)


Automatic running time (days)


Thickness of aluminum package (mm)


Weight of detector and Dewar bottle:


l  The front cable connector has a standard NIM interface: DC power supply ± 12V-D-Sub-9 pin

l  Detection efficiency of high-purity germanium detector: 10% -100%

l  Depending on the volume of Dewar bottle and the efficiency of detector.

. Applications

l  The in-situ high purity germanium gamma spectrometer measurement system can be used for measurements of radioactivity of gamma and X-ray, including radioactive substances in the environment, radioactive items in industrial and agricultural products, and enterprises engaging in the storage and disposal of nuclear waste.

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