A method and system for gamma ray burst monitoring and positioning

Abstract

The method discloses a method and a system for monitoring and positioning a gamma ray burst. The method comprises the following steps of (1) arranging a detector array on a satellite, and acquiring atheoretical response function of the detector array on the ground by adopting a theoretical analysis or test method; (2) after the satellite enters an orbit, when the gamma ray burst occurs, acquiringmeasurement data of the detector array in the gamma ray burst; and (3) deducing an incidence direction of a gamma ray according to the theoretical response function of the detector array in the step(1) and the measurement data of the detector array in the gamma ray burst in order to realize monitoring and positioning of the gamma ray burst. The method and the system solve the problems that the gamma ray burst is high in energy and can penetrate through front-end shields and spacecraft body structures of most of collimation type X-ray detection spacecraft, so that a response of the detector array can be generated by the gamma rays which are incident from all directions, and the incident direction of the gamma ray burst is difficult to measure through a collimation method.

Description

Technical field[0001]The invention relates to a method and a system for monitoring and positioning gamma-ray bursts, which are suitable for collimating X-ray telescope spacecraft using a composite crystal detector array for on-orbiting unknown GRB (Gamma Ray Burst, gamma ray burst) Source monitoring and positioning belong to the technical field of unknown GRB source monitoring and positioning.Background technique[0002](1) GRB[0003]A gamma-ray burst is a phenomenon in which the intensity of gamma rays from a certain direction in space suddenly increases in a short period of time, and then rapidly decreases. The radiation is mainly concentrated in the energy range of 0.1-100 MeV, and the duration is 0.01-1000 seconds. 2 seconds as the boundary, it can be roughly divided into two types: long burst and short burst. The typical duration is 30s and 0.3s respectively. Gamma-ray bursts were discovered in 1967. People still don't know its essence very well, but it is basically certain that i...

AI Technical Summary

Problems solved by technology

In view of the above problems, a collimated X-ray telescope spacecraft using a composite crystal detector array is proposed to locate the incident direction of gamma-ray bursts, so that this type of spacecraft has the ability to locate the incident direction of gamma-ray bursts. Solved the problem of detecting gamma-ray bursts with a collimated detector with a simple and lightweight structure

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