Download or read book Guidance on Radiation Received in Space Activities written by National Council on Radiation Protection and Measurements and published by Ncrp. This book was released on 1989 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidance on radiation received in space activities written by and published by . This book was released on 1989 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidance on Radiation Received in Space Activities written by NCRP. and published by . This book was released on 1988 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidance on Radiation Received in Space Activities written by National Council on Radiation Protection and Measurements and published by . This book was released on 1989 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radiation Exposures in Space and the Potential for Central Nervous System Effects written by National Council on Radiation Protection and Measurements and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "This Report has been prepared at the request of the National Aeronautics and Space Administration (NASA). It is the second phase of a two-phase effort intended to provide guidance to NASA concerning the health effects and mission impacts of space radiation exposure on the central nervous system (CNS) of crew members. The first phase of effort resulted in the National Council on Radiation Protection and Measurements (NCRP) Commentary No. 25, Potential for Central Nervous System Effects from Radiation Exposure During Space Activities. Phase I: Overview, which described the critical issues surrounding the potential short- and long-term consequences of space radiation on the CNS and laid the groundwork for a more comprehensive investigation that is the basis of this Report. This Report summarizes the steps and approaches needed to more fully understand the risk of CNS effects following radiation exposures in space and provides guidance for radiation protection, including risk management. NCRP has identified knowledge gaps regarding the implementation of a comprehensive and effective radiation safety program to protect astronauts against the potential for early and late CNS effects from space radiation"--
Download or read book Radiation Protection Guidance for Activities in Low earth Orbit written by National Council on Radiation Protection and Measurements and published by National Council on Radiation Protection & Measurements. This book was released on 2000 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidance on Radiation Received in Space Activities Quality Assurance for Diagnostic Imaging Exposure of the U S Population from Diagnostic Medical Radiation written by National Council on Radiation Protection and Measurements and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radiation Hazards to Crews of Interplanetary Missions written by National Research Council and published by National Academies Press. This book was released on 1997-02-27 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 uncertaintyâ€"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.
Download or read book Radiation Protection for Space Activities written by National Council on Radiation Protection and Measurements and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radiation Hazards to Crews of Interplanetary Missions written by National Research Council (U.S.). Task Group on the Biological Effects of Space Radiation and published by National Academies. This book was released on 1996 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radiation Hazards to Crews of Interplanetary Missions written by National Research Council and published by National Academies Press. This book was released on 1997-03-27 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 uncertaintyâ€"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.
Download or read book Space Radiation Guide written by American Machine and Foundry Company. Research and Development Division and published by . This book was released on 1962 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Space Radiation Guide is intended to be a reliable, easily understood handbook that will provide the reader with sufficient knowledge of the nature of space radiations to permit him to comprehend the total space radiation problem as it pertains to the hazards of manned space flight. The report is not intended to provide answers to all the problems, but, instead, to present much of the factual data currently known and to point out areas where information is sketchy and inconclusive. The radiations considered are cosmic rays, solar radiation, and the geomagnetically trapped (Van Allen) radiations. Included are chapters on instruments used for measuring these radiations, on shielding techniques, and on biological effects. (Author).
Download or read book Acceptability of Risk from Radiation written by and published by . This book was released on 1997 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: The symposium was convened in 1996 by NASA and the National Council on Radiation Protection and Measurements (NCRP) to examine the philosophy of radiation protection and acceptable risk as it pertains to the three percent excess risk guidelines established in 1989. The objective was to examine the technological, strategic, and philosophical issues pertaining to acceptable risk and radiation in space. Presentations included the space radiation environment, biology relevant to space radiation, history of the development of radiation protection standards for space activities, analytic concepts for assessing risk as applied to human space flight, approaches to acceptable risk, perception and acceptance of risk from radiation exposure in space flight, physician and astronaut perspectives on philosophy on astronaut protection, and comments on space flight and radiation limits.
Download or read book Radiation and the International Space Station written by National Research Council and published by National Academies Press. This book was released on 2000-03-25 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: A major objective of the International Space Station is learning how to cope with the inherent risks of human spaceflightâ€"how to live and work in space for extended periods. The construction of the station itself provides the first opportunity for doing so. Prominent among the challenges associated with ISS construction is the large amount of time that astronauts will be spending doing extravehicular activity (EVA), or "space walks." EVAs from the space shuttle have been extraordinarily successful, most notably the on-orbit repair of the Hubble Space Telescope. But the number of hours of EVA for ISS construction exceeds that of the Hubble repair mission by orders of magnitude. Furthermore, the ISS orbit has nearly twice the inclination to Earth's equator as Hubble's orbit, so it spends part of every 90-minute circumnavigation at high latitudes, where Earth's magnetic field is less effective at shielding impinging radiation. This means that astronauts sweeping through these regions will be considerably more vulnerable to dangerous doses of energetic particles from a sudden solar eruption. Radiation and the International Space Station estimates that the likelihood of having a potentially dangerous solar event during an EVA is indeed very high. This report recommends steps that can be taken immediately, and over the next several years, to provide adequate warning so that the astronauts can be directed to take protective cover inside the ISS or shuttle. The near-term actions include programmatic and operational ways to take advantage of the multiagency assets that currently monitor and forecast space weather, and ways to improve the in situ measurements and the predictive power of current models.
Download or read book Space Radiation Guide written by American Machine & Foundry Co. Research & Development Division, Alexandria, Va and published by . This book was released on 1962 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Evaluation of Radiation Exposure Guidance for Military Operations written by Institute of Medicine and published by National Academies Press. This book was released on 1997-10-28 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Managing Space Radiation Risk in the New Era of Space Exploration written by National Research Council and published by National Academies Press. This book was released on 2008-06-29 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
