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Instrument Network Instrument Development ] At present, there are 91 primary nuclear power plants in the EU that are retiring. The Spanish Energy Environment and Technology Center has developed emission and separation measurement equipment, equipped with high-purity germanium detectors, plastic scintillators and neutron detectors. . Researchers at the Czech Metrology Institute conducted preliminary tests on the equipment and the results were good.
A nuclear power plant is a power plant that uses the heat generated by one or several power reactors to generate electricity, or to generate electricity and heat. The radioactivity of nuclear power plants is the most worrying issue for the public. There are a large amount of radioactive materials in the reactor of a nuclear power plant. If it is released into the external environment during an accident, it will cause harm to the ecology and the public.
Neutron detector
Neutron devices are detected by the use of charged particles generated by the interaction of neutrons with boron or uranium to ionize the gas or activate the material itself after neutron irradiation. Neutron detectors are widely used for reactor nuclear power measurement or core neutron fluence rate distribution measurements. The working principle of the neutron detector is: When the neutron reacts with a certain nucleus, it emits charged particles. When the charged particles move in the gas, gas ionization occurs. The neutron fluence rate level is determined by measuring the ionization amount of the gas. For example, a neutron reacts with (n, a) of B to release alpha particles; or a neutron reacts with U to form fission fragments.
High purity helium detector
It is a nuclear radiation detector made of neodymium crystal. It can be stored at room temperature, but should be at a liquid nitrogen temperature during operation. According to its sensitive volume shape, HpGe detectors can be divided into planar and coaxial. The planar detector is mainly used to measure the nuclear radiation of medium and high energy charged particles, such as 220 MeV alpha particles, 60 MeV protons, and 10 MeV electrons, low energy gamma rays with energy of 300-600 keV. However, the detection gamma ray detection efficiency is not as good as NaI (Tl), but it has a higher energy resolution and plays an important role in distinguishing complex gamma spectroscopy.
Radioactivity detector
The element spontaneously emits radiation from an unstable atomic nucleus (such as α-ray, β-ray, γ-ray, etc.) and decays to form a stable element and stops radiation (decay product). This phenomenon is called radioactivity. The low background alpha/beta radioactivity detector is a precision instrument for measuring low levels of alpha and beta radioactivity. It can be used for total alpha and total beta radioactivity measurement of water, soil, building materials, ore, aerosol, food, etc.; suitable for radiation protection. The LM-02 dual low background alpha/beta radioactivity detector is a four-way measuring device.
About nuclear energy
Nuclear energy (or atomic energy) is the energy released from the nucleus by a nuclear reaction, in accordance with Albert Einstein's mass equation E=mc2, where E = energy, m = mass, c = speed of light. Nuclear energy can be released by one of three nuclear reactions: 1. Nuclear fission, and heavier nuclear splitting releases tuberculosis. 2, nuclear fusion, lighter nuclear nucleus to release tuberculosis. 3. Nuclear decay, the release of energy during the spontaneous decay of the nucleus.
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