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Mosten Alloy Co., Ltd.

Tungsten-nickel-iron for radiation detectors

  • Mosten
  • 11 May

As the representative material of high specific gravity tungsten alloy, tungsten-nickel-iron alloy (W-Ni-Fe alloy) can be well used for large and small mechanical equipment in addition to the counterweight parts, or a very good radiation material, gamma ray and X-ray have a strong absorption capacity. For radiation detectors, which are widely used today, W-Ni-Fe alloy is very suitable to be used as the key shielding material, which can not only more effectively avoid radiation leakage to the workers or the surrounding objects, but also significantly improve the accuracy and accuracy of the detector measurements.

Radiation detector is a sensor piece, device or material used to observe and study the microscopic phenomena of nuclear radiation and particles. It is reported that the radiation detector received incident particles such as gamma rays, X-rays, will immediately give the corresponding electrical signal, after the electronic circuit amplification, processing, can be recorded and analyzed.

The components of a radiation detector include a radiation-sensitive semiconductor and a light irradiation mechanism. A common electrode formed on a surface of a semiconductor to accept a bias voltage; A plurality of segmented electrodes formed on another surface of a semiconductor for the output of electrical charges generated by incident radiation in the semiconductor as an electrical signal; The light irradiation mechanism is used to emit light during radiation detection.

In addition to the semiconductor sensitivity of the equipment, the number of particles and the properties of particles are also related to the factors that affect the detection efficiency, resolution, linear response and particle discrimination ability of the detector.

Therefore, in order to reduce the probability of radiation leakage from the detector, it is necessary to choose tungsten-nickel-iron alloy as the key shielding material. This can effectively prevent the number of particles passing through the device to reduce the situation, and further improve the accuracy of the relevant measurement value of the device. The tungsten alloy has the characteristics of being more friendly to the ecological environment, higher strength, better processing performance and no secondary radioactivity. Tungsten-nickel-iron alloy is a kind of tungsten alloy, which is made of tungsten phase as hard phase and nickel-iron alloy as binder. Its specific gravity is generally 16.5-18.75g/cm3, and its ability to absorb radiation is 30-40% higher than that of lead.