Depth distribution of absorbed dose on the external surface of Cosmos 1887 biosatellite
| Autor: | E.E. Kovalev, Thomas A. Parnell, A.L. Frank, Yu.A. Akatov, V.E. Dudkin, John W. Watts, E.V. Benton |
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| Rok vydání: | 1990 |
| Předmět: |
Physics
business.industry International Cooperation Electron Space Flight Charged particle Particle detector United States Percentage depth dose curve Optics Radiation Protection Absorbed dose Electromagnetic shielding Dosimetry Thermoluminescent Dosimetry Atomic physics Spacecraft business Biosatellite Cosmic Radiation USSR |
| Zdroj: | International Journal Of Radiation Applications And Instrumentation. Part D, Nuclear Tracks And Radiation Measurements. 17(2) |
| ISSN: | 0735-245X |
| Popis: | Significant absorbed dose levels exceeding 1.0 Gy day-1 have been measured on the external surface of the Cosmos 1887 biosatellite as functions of depth in stacks of thin thermoluminescent detectors (TLDs) of U.S.S.R. and U.S.A. manufacture. The dose was found to decrease rapidly with increasing absorber thickness, thereby indicating the presence of intensive fluxes of low-energy particles. Comparison between the U.S.S.R. and U.S.A. results and calculations based on the Vette Model environment are in satisfactory agreement. The major contribution to the dose under thin shielding thickness is shown to be from electrons. The fraction of the dose due to protons and heavier charged particles increases with shielding thickness. |
| Databáze: | OpenAIRE |
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