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The role of HZE particles in space flight: results from spaceflight and ground-based experiments.
- Source :
-
Acta astronautica [Acta Astronaut] 1981 Sep-Oct; Vol. 8 (9-10), pp. 1099-107. - Publication Year :
- 1981
-
Abstract
- Selected results from experiments investigating the potentially specific radiobiological importance of the cosmic HZE (= high Z, energetic) particles are discussed. Results from the Biostack space flight experiments, which were designed to meet the experimental requirements imposed by the microdosimetric nature of this radiation field, clearly indicate the existence of radiation mechanisms which become effective only at higher values of LET (linear energy transfer). Accelerator irradiation studies are reviewed which conform with this conjecture. The recently discovered production of "micro-lesions" in mammalian tissues by single HZE particles is possibly the most direct evidence. Open questions concerning the establishment of radiation standards for manned spaceflight, such as late effects, interaction with flight dynamic parameters, and weightlessness, are indicated.
- Subjects :
- Animals
Artemia growth & development
Artemia radiation effects
Bacillus subtilis growth & development
Bacillus subtilis radiation effects
Colony Count, Microbial
Dose-Response Relationship, Radiation
Larva growth & development
Larva radiation effects
Linear Energy Transfer
Particle Accelerators
Radiation Monitoring
Rats
Retina radiation effects
Seeds growth & development
Seeds radiation effects
Spores, Bacterial growth & development
Spores, Bacterial radiation effects
Zea mays growth & development
Zea mays radiation effects
Cosmic Radiation
Heavy Ions
Space Flight
Weightlessness
Subjects
Details
- Language :
- English
- ISSN :
- 0094-5765
- Volume :
- 8
- Issue :
- 9-10
- Database :
- MEDLINE
- Journal :
- Acta astronautica
- Publication Type :
- Academic Journal
- Accession number :
- 11543100
- Full Text :
- https://doi.org/10.1016/0094-5765(81)90084-9