Device and method for measuring exposure of rice seed embryos to heavy ion radiation

Abstract

The invention discloses a device for measuring the exposure of rice seed embryos to heavy ion radiation. The device is a seed box for study of rice seed space radiation effect. The device consists ofan upper cover plate (3), a nuclear track detector (4), a matrix (6) and a lower cover plate (7) from top to bottom in order, the matrix (6) is a square groove equipped with a plurality of ellipticalholes (5), the elliptical holes (5) are through-holes and are used for installing and fixing rice seeds (8), the nuclear track detector (4) is installed in the square groove, and is fixed through theupper cover plate (3) and the lower cover plate (7). Based on the device, the invention also discloses a method for measuring the exposure of rice seed embryos to heavy ion radiation, and the method can acquire the linear energy transfer information of heavy ion radiation to the seed embryos. The method provided by the invention can accurately acquire the heavy ion radiation to the seed embryos, in addition to high energy and long-range heavy ions, the heavy ions also include low energy and short-range heavy ions.

Description

technical field [0001] The invention relates to the research field of biological space radiation effects, in particular to a method for measuring the space heavy ion radiation exposure to rice seed embryos, in particular to a device and method for measuring rice seed embryos exposed to heavy ion radiation. Background technique [0002] At present, in the research on the space radiation effect of rice seeds, in order to determine which rice seeds are irradiated by space heavy ion radiation, the "sandwich" stacking method is often used: the middle layer is the rice seeds arranged in rows and columns, The upper layer and the lower layer each use a radiation position-sensitive detector, and the radiation track is obtained by the two detectors, and the irradiated seeds are determined from the track. Rice seeds are composed of three parts: germ, endosperm and seed coat, among which the germ is the most sensitive part to radiation. In the study of the space radiation effect of ric...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of measuring the heavy ion radiation of the embryo in the study of the space radiation effect of rice seeds. The present invention provides a seed box for the study of the space radiation effect of rice seeds and the measurement method based on the seed box. The Method of Rice Embryo Heavy Ion Irradiation

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