A subject "Study of mechanism and application of space radiation induced mutation breeding on rice" has been established in NSFC, China. In order to verify space heavy particles being main cause (in addition...A subject "Study of mechanism and application of space radiation induced mutation breeding on rice" has been established in NSFC, China. In order to verify space heavy particles being main cause (in addition, microgravity, vacuum, magnetic field etc.) of induced biological effects in space and in order to study correlation of various mutation and its serious degree with different particle parameters, measurement and identification of the particles are necessary. CR-39 sheets are a part of a sandwich detecting system. The system consists of rice seeds and CR-39 solid state nuclear track detectors. The seeds hit by space particles could be determined withetched tracks in CR-39. Furthermore, the space heavy particles could be identified with measured parameters of the tracks such as residual range and etch rate.展开更多
文摘A subject "Study of mechanism and application of space radiation induced mutation breeding on rice" has been established in NSFC, China. In order to verify space heavy particles being main cause (in addition, microgravity, vacuum, magnetic field etc.) of induced biological effects in space and in order to study correlation of various mutation and its serious degree with different particle parameters, measurement and identification of the particles are necessary. CR-39 sheets are a part of a sandwich detecting system. The system consists of rice seeds and CR-39 solid state nuclear track detectors. The seeds hit by space particles could be determined withetched tracks in CR-39. Furthermore, the space heavy particles could be identified with measured parameters of the tracks such as residual range and etch rate.
