Product Introduction

NT-PAB-6000G Low Background Gamma Spectrometer

This product complies with the technical requirements for using this instrument, including GB11743-2013 "Method for gamma spectrum analysis of radioactive nuclides in soil", GB6566-2010 "Limits of radioactive nuclides in building materials", GB50325-2013 "Code for indoor environmental pollution control of civil construction engineering", GB/T16140-1995 "Method for gamma spectrum analysis of radioactive nuclides in water", GB/T 16145-1995 "Method for gamma spectrum analysis of radioactive nuclides in biological samples", etc.
This product is mainly used by quality and technical supervision and inspection departments at all levels, health and epidemic prevention departments, construction departments, environmental protection, geological exploration, building material evaluation, scientific research, construction stations, quality inspection stations, and processing units for quantitative analysis of radioactive nuclides in various inorganic non-metallic materials such as stone, ceramics, cement, sand, concrete, and their products, as well as measurement of radon in air and soil (activated carbon box method). It can also be used by isotope production units for energy characteristic spectrum determination of various radioactive nuclides.

Technical specifications:

-Working voltage: 220V ± 10%, 50Hz, host power: ≤ 10W (excluding computers and printers);
-Working environment temperature range: (15-35) ℃, working environment humidity ≤ 90% RH;
-Typical energy resolution: ≤ 7.0% (137Cs 661keV full energy peak), energy linearity ≤ ± 1%;
-Measurable energy range: 20keV to 10MeV;
-Detector background: ≤ 240CPM (energy range of 20keV to 10MeV, measured indoors with lead);
-High voltage: 500-1000V, programmable and adjustable;
-Input signal gain: 1/8 to 1, programmable and adjustable;
-Multi channel analyzer: 1024/2048/4096 mode, software optional;
-Multi channel analyzer: 12 bit successive approximation ADC, pass rate ≥ 1MCPS; Integral nonlinearity ≤± 1LSB, differential nonlinearity ≤± 0.5LSB;
-Stability: 24-hour peak drift ≤ 1%;
-Continuous pulse pass rate of multi-channel analyzer: ≥ 30kCPS;
-Fully external: communication interface USB (2.0 standard);
-The analysis software is a WINDOWS application (WIN7~WIN10) with a simplified Chinese interface and a multi document application. It includes basic functions such as spectrum acquisition, analysis, activity analysis (relative efficiency method measurement, inverse matrix method spectrum solution), energy calibration (Bezier curve fitting), automatic peak finding (symmetric zero area method), automatic spectrum stabilization (specific multi-directional parameter least squares method), etc. It also supports manual spectral line calibration, manual peak finding, custom analysis interval (default full spectrum analysis) and other advanced functions. Mouse operation, automatic calculation, printing and outputting reports, supporting multiple report format options and convenient printing preview. Support customized report formats;
-Measurement method: relative efficiency method;
-Analytical nuclide types: 226Ra, 232Th, 40K... Support for radon detection using activated carbon box method. A universal nuclide library can be added, such as 235U, 137Cs, 60Co, etc., which can be determined by the user themselves. Only standard sources with corresponding specifications need to be configured;
-Analysis accuracy: When the sum of specific activities of 226Ra, 232Th, and 40K in the sample is greater than 37Bq/kg (with a standard loading of about 340g), the measurement uncertainty of this instrument is ≤ 10% (k=2).

Configuration list: