Automatic measurement system and method of extrapolation ionization chamber

An automatic measurement and ionization chamber technology, applied in the field of radiation monitoring, can solve the problems of long beta ray measurement process and measurement environment disturbance, and achieve the effect of automatic timing measurement, reducing interference and simplifying the operation of measurement

An automatic measurement and ionization chamber technology, applied in the field of radiation monitoring, can solve the problems of long beta ray measurement process and measurement environment disturbance, and achieve the effect of automatic timing measurement, reducing interference and simplifying the operation of measurement

CN104122575AActive Publication Date: 2014-10-29CHINA INSTITUTE OF ATOMIC ENERGY
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  • Automatic measurement system and method of extrapolation ionization chamber
  • Automatic measurement system and method of extrapolation ionization chamber
  • Automatic measurement system and method of extrapolation ionization chamber

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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] Such as figure 1 As shown, the extrapolated ionization chamber automatic measurement system provided by the present invention includes an electrometer connected with the extrapolated ionization chamber. In this embodiment, the electrometer can be a 6517A electrometer, which has a DC power supply unit and a charge measurement unit. Alternatively, other models of electrometers or other devices with similar functions may be used. The DC power supply unit of the 6517A electrometer is connected to the electrode plate of the extrapolation ionization chamber for powering the extrapolation ionization chamber; the charge measurement unit of the 6517A electrometer is connected to the collector of the extrapolation ionization chamber for measuring the extrapolation ionization chamber. The ionization current of the ionization chamber; the 6517A electromet...

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Abstract

The invention belongs to the technical field of radiation monitoring and particularly relates to an automatic measurement system and method of an extrapolation ionization chamber. The system comprises an electrometer which is connected with the extrapolation ionization chamber, a direct-current power supply unit of the electrometer is connected with an electrode plate of the extrapolation ionization chamber and used for providing power for the extrapolation ionization chamber, a charge measurement unit of the electrometer is connected with a collector electrode of the extrapolation ionization chamber and used for measuring ionization current of the extrapolation ionization chamber, the electrometer is connected with a computer which is used for controlling performing of measuring operation, the extrapolation ionization chamber is provided with a counter electrode distance adjusting device, the counter electrode distance adjusting device is connected with a programmable logic controller (PLC), and the PLC is connected with the computer. According to the automatic measurement system and method of the extrapolation ionization chamber, the operation is simplified, measuring errors are reduced, and the measuring stability is improved.

Description

technical field [0001] The invention belongs to the technical field of radiation monitoring, and in particular relates to an extrapolation ionization chamber automatic measurement system and method. Background technique [0002] In some cases in the field of radiation monitoring, it is necessary to operate radioactive materials under unshielded or very weak shielding, where the dose of beta radiation exceeds 50 times that of the same gamma radiation source. Especially in the case of radioactive material leakage, when it is necessary to remove radioactive contamination on the exposed surface, the staff have to work in a strong β-ray field, and the monitoring of β-absorbed dose is particularly important at this time. In the decades of production, research and application of my country's nuclear industry, β-ray burns accounted for a large proportion of exposure accidents. An extreme example of this situation is the Chernobyl nuclear accident, where the beta radiation doses rec...

Claims

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Application Information

Patent Timeline
29 Oct 2014
Publication
CN104122575A
IPC
G01T1/14; G05B19/05
Inventors
王红玉; 魏可新