A Proposed Performance Index for Galactic Cosmic Ray Shielding Materials PDF Download
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Author: John William Wilson
Publisher:
ISBN:
Category : Biology
Languages : en
Pages : 16
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Book Description
Author: John William Wilson
Publisher:
ISBN:
Category : Biology
Languages : en
Pages : 16
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Book Description
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781725017238
Category :
Languages : en
Pages : 28
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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...
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 464
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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:
Publisher:
ISBN:
Category : Research
Languages : en
Pages : 1218
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Book Description
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 858
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Author:
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ISBN:
Category : Government publications
Languages : en
Pages :
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Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1064
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 496
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Book Description
Author: Nikolopoulos, Christos D.
Publisher: IGI Global
ISBN: 1799848809
Category : Technology & Engineering
Languages : en
Pages : 285
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Book Description
Electromagnetic compatibility and regulatory compliance issues are subjects of great importance in electronics engineering. Avoiding problems regarding an electronic system's operation, while always important, is especially critical in space missions and satellite structures. Many problems can be traced to EM field disturbances as interference from unintended sources and other electromagnetic phenomena. As a result, stringent requirements are to be met in terms of electromagnetic emissions levels. The inclusion of this electromagnetic environment in the design of a multimillion mission can lead to a system that is able to withstand whatever challenge the environment throws at it. Failure to do so may lead to important data corruption or loss, destruction of expensive instruments, waste of resources, and even a total mission failure. Research in this area focuses on the studying of the applications of electromagnetic compatibility and electromagnetic interference in the space industry. Recent Trends on Electromagnetic Environmental Effects for Aeronautics and Space Applications will provide relevant theoretical frameworks and the latest empirical research findings in electromagnetic compatibility and electromagnetic interference (EMC/EMI) for the aerospace industry. This book examines all the necessary information for all matters that can possibly affect the system design of a spacecraft and can be a useful reference to space system engineers and more. While highlighting topics such as artificial intelligence, electromagnetic testing, environmental shielding, and EMC modelling techniques, this book is ideal for professionals, spacecraft designers, science and data processing managers, electrical and mechanical engineers, EMC testing engineers, and researchers working in the aerospace industry along with practitioners, researchers, academicians, and students looking for necessary information for all the matters that can possibly affect the system design of a spacecraft.
