期刊
ASTROBIOLOGY
卷 17, 期 2, 页码 101-109出版社
MARY ANN LIEBERT, INC
DOI: 10.1089/ast.2016.1571
关键词
Space radiation environment; Sparsely ionizing radiation; Densely ionizing radiation; Heavy ions; Gamma radiation; Astrobiological model systems
资金
- DLR grant FuE-Projekt ISS LIFE'' (Programm RF-FuW, Teilprogramm 475)
- Grants-in-Aid for Scientific Research [15H05944] Funding Source: KAKEN
In-depth knowledge regarding the biological effects of the radiation field in space is required for assessing the radiation risks in space. To obtain this knowledge, a set of different astrobiological model systems has been studied within the STARLIFE radiation campaign during six irradiation campaigns (2013-2015). The STARLIFE group is an international consortium with the aim to investigate the responses of different astrobiological model systems to the different types of ionizing radiation (X-rays, gamma rays, heavy ions) representing major parts of the galactic cosmic radiation spectrum. Low-and high-energy charged particle radiation experiments have been conducted at the Heavy Ion Medical Accelerator in Chiba (HIMAC) facility at the National Institute of Radiological Sciences (NIRS) in Chiba, Japan. X-rays or gamma rays were used as reference radiation at the German Aerospace Center (DLR, Cologne, Germany) or Beta-Gamma-Service GmbH (BGS, Wiehl, Germany) to derive the biological efficiency of different radiation qualities. All samples were exposed under identical conditions to the same dose and qualities of ionizing radiation (i) allowing a direct comparison between the tested specimens and (ii) providing information on the impact of the space radiation environment on currently used astrobiological model organisms.
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