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Low-Background Gamma Spectrometer

The HA4200 employs a high-resolution NaI(Tl) scintillation detector to measure gamma radioactivity in water, biological specimens, solid waste, ores, and construction materials. It also quantifies radon concentrations in air and soil, and performs purity analysis of radiopharmaceuticals.
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Product Overview

The HA4200 employs a high-resolution NaI(Tl) scintillation detector to measure gamma radioactivity in water, biological specimens, solid waste, ores, and construction materials. It also quantifies radon concentrations in air and soil, and performs purity analysis of radiopharmaceuticals.

 

Applications

Widely utilized in radiopharmaceutical R&D, nuclear medicine departments, environmental protection agencies, CDCs, and radiation monitoring stations. It is designed for the specific activity analysis​ of natural and artificial radionuclides in soil, building materials, biological samples, water, and air.

 

Features

  • Driver-Free Connectivity:​ Direct USB connection to PC with no driver installation required.
  • Programmable MCA:​ PC-controlled multi-channel analyzer configuration and parameter setup.
  • Integrated Analysis Software:​ An all-in-one suite providing instrument control, spectrum acquisition, and quantitative spectral analysis.
  • User-Friendly Interface:​ Standard multi-document Windows application with a native Chinese GUI.
  • Multi-Geometry Support:​ Compatible with point, cylindrical, planar, and Marinelli beaker sample geometries.
  • Dual-Language Support:​ One-click switching between English and Simplified Chinese interfaces.

 

Technical Specifications

Product Model

HA4200

Detector Type

NaI(Tl) crystal

Energy Range

30 keV ~ 3 MeV (10 MeV optional)

Energy Resolution

≤7.5% (@662 keV, ¹³⁷Cs)

MCA Channels

​ 1024 / 2048 / 4096

Background Count Rate

< 10 cps

Stability

Peak drift ≤1.0% within 24 h (¹³⁷Cs)

Detectable Radionuclides

²²⁶Ra, ²³²Th, ⁴⁰K, ²²²Rn, ¹³⁷Cs, ²⁴¹Am, etc.; editable nuclide library

Measurement Accuracy

< 10% (sample activity > 37 Bq/kg)

Acquisition Time

Adjustable from 0 ~ 200,000 s

Communication Interface

USB / Ethernet

Auxiliary I/O

Reserved port for data transmission and printing