It’s necessary to have radiation detector in our life, as the radiation cannot be perceived by human. People must use radiation detector to detect a variety of radiation, know radiation’s type, intensity (quantity), energy, time and other characteristics. That is, measure the radiation.

Tungsten alloy radiation detector, which is made of tungsten alloy, is used to observe microscopic phenomena of nuclear radiation and particles. The working principle of the radiation detector is based on the interaction between particles and substance. That is to use the appropriate detection medium as the material that worked with the particles. Then the ionization or excitation generated by particles in the detection medium change into a variety forms of information which can be accepted by the people sensory directly or indirectly. The main performance indicators of radiation detectors are detection efficiency, resolution, linear response, and particle discrimination, etc.

 

There’re is an important link between tungsten alloy radiation detector performance and its manufacturing materials. Tungsten alloy performance advantages are as follows: 

High Density: Tungsten alloy radiation detector density is generally 16.5 ~ 19.0g / cm³, which is more than twice than the steel density.

 

Good ability to absorb radiation: Tungsten heavy alloy’s ability of absorbing radiation is higher of 30% to 40% than lead, and its stability is better than lead. 

 

Good ductility: W-Ni-Fe tungsten heavy alloy has a good ductility, whose sintered state of the elongation can reach 10% to 15%, and by vacuum or atmosphere dehydrogenation treatment, the elongation can be increased to 20% 30%. 

 

Good electrical properties: W-Ni-Cu, W-Ni-Fe tungsten heavy alloy has good electrical conductivity, corrosion resistance, high voltage and other electrical properties. 

 

Good thermal conductivity and low coefficient of linear expansion: Tungsten alloy’s thermal conductivity is 5 times of mold steel’s, and its coefficient of linear expansion is only 1/2 to 1/3 of iron or steel. 

 

Good corrosion and oxidation resistance.