Author: Myung-Hee Y. KimPublisher:
ISBN:
Category : Shielding (Radiation)
Languages : en
Pages : 44
Book Description
Performance Study of Galactic Cosmic Ray Shield Materials
Author: Myung-Hee Y. KimPublisher:
ISBN:
Category : Shielding (Radiation)
Languages : en
Pages : 44
Book Description
A Proposed Performance Index for Galactic Cosmic Ray Shielding Materials
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781725017238
Category :
Languages : en
Pages : 28
Book Description
In past studies, the reductions in absorbed dose and dose equivalent due to choice of material composition have been used to indicate shield effectiveness against exposure to galactic cosmic rays. However, these quantities are highly inaccurate in assessing shield effectiveness for protection against the biological effects of long-term exposure to the galactic heavy ions. A new quantity for shield performance is defined that correlates well with cell killing and cell transformation behind various shield thicknesses and materials. In addition, a relative performance index is identified that is inversely related to biological injury for different materials at a fixed shield mass and is directly related to the ratio of the fourth- and the second-order linear energy transfer (LET) moments. Wilson, John W. and Wood, J. S. and Shinn, Judy L. and Cucinotta, Francis A. and Nealy, John E. Langley Research Center NASA-TM-4444, L-17199, NAS 1.15:4444 RTOP 592-43-21-01...
A Proposed Performance Index for Galactic Cosmic Ray Shielding Materials
Author: John William WilsonPublisher:
ISBN:
Category : Biology
Languages : en
Pages : 16
Book Description
Shielding Strategies for Human Space Exploration
Author: John William WilsonPublisher:
ISBN:
Category : Extraterrestrial radiation
Languages : en
Pages : 496
Book Description
The purpose of the workshop was to define requirements for the development and evaluation of high performance shield materials and designs and to develop ideas regarding approaches to radiation shielding.
Effects of Fragmentation Parameter Variations on Estimates of Galactic Cosmic Ray Exposure
Author: Preliminary design of a galactic cosmic ray shielding materials testbed for the International Space Station
Author: James R. GaierComparison of Martian Meteorites and Martian Regolith as Shield Materials for Galactic Cosmic Rays
Author: Myung-Hee Y. KimPublisher:
ISBN:
Category : Galactic cosmic rays
Languages : en
Pages : 18
Book Description
Biological Effects and Physics of Solar and Galactic Cosmic Radiation Part B
Author: Charles E. SwenbergPublisher: Springer Science & Business Media
ISBN: 1461529166
Category : Science
Languages : en
Pages : 938
Book Description
Space missions subject human beings or any other target of a spacecraft to a radiation environment of an intensity and composition not available on earth. Whereas for missions in low earth orbit (LEO), such as those using the Space Shuttle or Space Station scenario, radiation exposure guidelines have been developed and have been adopted by spacefaring agencies, for exploratory class missions that will take the space travellers outside the protective confines of the geomagnetic field sufficient guidelines for radiation protection are still outstanding. For a piloted Mars mission, the whole concept of radiation protection needs to be reconsidered. Since there is an increasing interest of many nations and space agencies in establishing a lunar base and lor exploring Mars by manned missions, it is both, timely and important to develop appropriate risk estimates and radiation protection guidelines which will have an influence on the design and structure of space vehicles and habitation areas of the extraterrestrial settlements. This book is the result of a multidisciplinary effort to assess the state of art in our knowledge on the radiation situation during deep space missions and on the impact of this complex radiation environment on the space traveller. It comprises the lectures by the faculty members as well as short contributions by the students given at the NATO Advanced Study Institute "Biological Effects and Physics of Solar and Galactic Cosmic Radiation" held in Armacao de Pera, Portugal, 12-23 October, 1991.
Author: Francis A. Cucinotta
Author: R. E. Fortney