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Author: National Council on Radiation Protection and Measurements
Publisher:
ISBN: 9781680154474
Category : Radiation
Languages : en
Pages :
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Book Description
Author: National Council on Radiation Protection and Measurements
Publisher:
ISBN: 9781680154474
Category : Radiation
Languages : en
Pages :
Get Book Here
Book Description
Author: National Council on Radiation Protection and Measurements
Publisher: Ncrp
ISBN:
Category : Science
Languages : en
Pages : 248
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Book Description
Author: Thomas M. Jordan
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The Earth's natural radiation environment poses a hazard to manned space activities directly through biological effects and indirectly through effects on materials and electronics. A preliminary review of radiation protection indicates a requirement for Standard Practices that address: (1) environment models for all radiation species including uncertainties and temporal variations; (2) upper bound and nominal quality factors for biological radiation effects that include dose, dose rate, critical organ, and linear energy transfer variations; (3) particle transport and shielding methodology including system and man-modeling and uncertainty analysis; (4) mission planning that includes active dosimetry, minimizes exposure during extravehicular activities, subjects every mission to a radiation review, and specifies operational procedures for forecasting, recognizing, and dealing with large solar flares. The Space Transportation System and space station missions should be addressing radiation protection uncertainties and worst case issues now.
Author: Arthur Reetz
Publisher:
ISBN:
Category : Shielding (Radiation)
Languages : en
Pages : 576
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Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309102642
Category : Science
Languages : en
Pages : 104
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Book Description
Fulfilling the President's Vision for Space Exploration (VSE) will require overcoming many challenges. Among these are the hazards of space radiation to crews traveling to the Moon and Mars. To explore these challenges in some depth and to examine ways to marshal research efforts to address them, NASA, NSF, and the NRC sponsored a workshop bringing together members of the space and planetary science, radiation physics, operations, and exploration engineering communities. The goals of the workshop were to increase understanding of the solar and space physics in the environment of Earth, the Moon, and Mars; to identify compelling relevant research goals; and discuss directions this research should take over the coming decade. This workshop report presents a discussion of radiation risks for the VSE, an assessment of specifying and predicting the space radiation environment, an analysis of operational strategies for space weather support, and a summary and conclusions of the workshop.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309185726
Category : Science
Languages : en
Pages : 132
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Book Description
As part of the Vision for Space Exploration (VSE), NASA is planning for humans to revisit the Moon and someday go to Mars. An important consideration in this effort is protection against the exposure to space radiation. That radiation might result in severe long-term health consequences for astronauts on such missions if they are not adequately shielded. To help with these concerns, NASA asked the NRC to further the understanding of the risks of space radiation, to evaluate radiation shielding requirements, and recommend a strategic plan for developing appropriate mitigation capabilities. This book presents an assessment of current knowledge of the radiation environment; an examination of the effects of radiation on biological systems and mission equipment; an analysis of current plans for radiation protection; and a strategy for mitigating the risks to VSE astronauts.
Author: John William Wilson
Publisher:
ISBN:
Category : Extraterrestrial radiation
Languages : en
Pages : 496
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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.
Author: National Council on Radiation Protection and Measurements
Publisher: National Council on Radiation Protection & Measurements
ISBN:
Category : Biography & Autobiography
Languages : en
Pages : 232
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Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 030918066X
Category : Science
Languages : en
Pages : 104
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Book Description
Fulfilling the President's Vision for Space Exploration (VSE) will require overcoming many challenges. Among these are the hazards of space radiation to crews traveling to the Moon and Mars. To explore these challenges in some depth and to examine ways to marshal research efforts to address them, NASA, NSF, and the NRC sponsored a workshop bringing together members of the space and planetary science, radiation physics, operations, and exploration engineering communities. The goals of the workshop were to increase understanding of the solar and space physics in the environment of Earth, the Moon, and Mars; to identify compelling relevant research goals; and discuss directions this research should take over the coming decade. This workshop report presents a discussion of radiation risks for the VSE, an assessment of specifying and predicting the space radiation environment, an analysis of operational strategies for space weather support, and a summary and conclusions of the workshop.
Author: Task Group on the Biological Effects of Space Radiation
Publisher: National Academies Press
ISBN: 0309524296
Category : Science
Languages : en
Pages : 89
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Book Description
NASA's long-range plans include possible human exploratory missions to the moon and Mars within the next quarter century. Such missions beyond low Earth orbit will expose crews to transient radiation from solar particle events as well as continuous high-energy galactic cosmic rays ranging from energetic protons with low mean linear energy transfer (LET) to nuclei with high atomic numbers, high energies, and high LET. Because the radiation levels in space are high and the missions long, adequate shielding is needed to minimize the deleterious health effects of exposure to radiation. The knowledge base needed to design shielding involves two sets of factors, each with quantitative uncertainty?the radiation spectra and doses present behind different types of shielding, and the effects of the doses on relevant biological systems. It is only prudent to design shielding that will protect the crew of spacecraft exposed to predicted high, but uncertain, levels of radiation and biological effects. Because of the uncertainties regarding the degree and type of radiation protection needed, a requirement for shielding to protect against large deleterious, but uncertain, biological effects may be imposed, which in turn could result in an unacceptable cost to a mission. It therefore is of interest to reduce these uncertainties in biological effects and shielding requirements for reasons of mission feasibility, safety, and cost.
