A method for estimating the amount of radioactive waste in situ

Abstract

The invention relates to a method for measuring radioactivity. In order to solve the deficiencies in the radioactive waste quantity estimation of the existing source item investigation work, the present invention proposes a method for estimating the radioactive waste quantity on the spot. The method includes the following steps: 1. Select a dose rate on-site measuring instrument that meets the requirements; 2. The dose rate on-site measuring instrument is wrapped with lead and steel to form a shield in sequence, and an opening is left at the lower end to form a directional measuring device, and the directional measuring device is calibrated; 3. Use the directional measuring device to measure on-site to obtain the response-activity Concentration curve; 4. Conduct directional measurement of the pollution level of ground radioactive waste on the basis of not destroying the original landform; 5. Directly estimate the total amount of various types of waste with different radioactive levels according to the overall situation of on-site measurement. The method for estimating the amount of radioactive waste on site can significantly shorten the sampling and analysis period, speed up the work process of source item investigation, and has the advantage of low cost.

Description

technical field [0001] The invention relates to a radioactivity measurement method, in particular to a method for estimating the amount of radioactive waste on site. Background technique [0002] Before the implementation of radioactive decommissioning project or environmental pollution control project, it is necessary to estimate the existing amount of radioactive waste to determine the plan and budget of the decommissioning project. On-site contamination points are sampled and analyzed to estimate the existing amount of radioactive waste. The main disadvantage of this method is that the sampling and analysis period is long and the cost is high, which is not conducive to project implementation. Contents of the invention [0003] In order to solve the above-mentioned problems existing in the estimation of the amount of radioactive waste in the existing source item investigation work, the present invention proposes a method for estimating the amount of radioactive waste in ...

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Problems solved by technology

[0002] Before the implementation of radioactive decommissioning project or environmental pollution control project, it is necessary to estimate the existing amount of radioactive waste to determine the plan and budget of the decommissioning project. On-site contamination points are sampled and analyzed to estimate the existing amount of radioactive waste. The main disadvantage of this method is that the sampling and analysis period is long and the cost is high, which is not conducive to project implementation.

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