Gamma ray angle correlation measuring device and measuring method based on same

Abstract

The invention relates to a nuclear data measuring device, in particular to a gamma ray angle correlation measuring device and a measuring method based on the same, and solves the problems that when anexisting gamma ray angle correlation measuring device is adopted for measurement, time and labor are consumed, early-stage and later-stage measurement of nuclide with a short half-life period cannotbe considered simultaneously, and the measurement accuracy is difficult to guarantee. The device is characterized in that the device comprises at least six detectors which are circumferentially distributed along a detector laying ring; the central axes of the detectors are positioned on the same plane and penetrate through the circle center of the detector laying ring; the detector laying ring isa virtual circle; at least one included angle of the included angles of the central axes of every two detectors of the at least six detectors is 90 degrees, one included angle is 180 degrees, eight included angles are greater than 90 degrees and less than 180 degrees, or the number of included angles than 90 degrees and less than 180 degrees plus the number of included angles after the included angles greater than 0 degree and less than 90 degrees are converted according to the angle correlation symmetry principle is greater than or equal to 8, and the eight angles are not equal to one another.

Description

technical field [0001] The invention relates to a nuclear data measurement device, in particular to a gamma ray angle correlation measurement device and a measurement method based on the device. Background technique [0002] When the atomic nucleus transitions from the excited state to the ground state, it sometimes completes through multiple gamma transitions continuously, during which multiple gamma rays will be emitted. The angular correlation of two cascaded gamma rays is directly related to nuclear data such as nuclear energy level structure, angular momentum, and transition pole order, and is one of the key parameters for nuclear data measurement. [0003] see figure 1 , the existing gamma ray angle correlation measurement device adopts a dual detector structure ([1] Guzainur Aniwa, Research on the method of simultaneous measurement of γ transition angle correlation by NaI detector, master's degree thesis of Xinjiang University, 2017 [2] Zhang Gaolong et al., Angle C...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a gamma-ray angle correlation measurement device and a measurement method based on the device, to solve the problem of time-consuming and labor-intensive measurements for nuclides with shorter half-lives when using the existing gamma-ray angle correlation measurement device. The technical problems that the early and late measurement cannot be balanced and the measurement accuracy is difficult to guarantee

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