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100   $a20010713d2001      ua         0
101 0 $aeng
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181   $ctxt
182   $cc
183   $acr
200 00$aFluence-based and microdosimetric event-based methods for radiation protection in space$b[electronic resource]
210   $aBethesda, Md. $cNational Council on Radiation Protection and Measurements$d2001
215   $a1 online resource (120 p.)
225 1 $aNCRP report ;$vno. 137
300   $a"April 2001."
300   $aPrepared by the Scientific Committee 88 on Fluence as the Basis for a Radiation Protection System for Astronauts.
311   $a0-929600-70-3 
320   $aIncludes bibliographical references and index.
327   $a""Cover Page""; ""Preface""; ""Contents""; ""1. Summary""; ""2. Introduction""; ""2.1 The Radiation of Space""; ""2.2 Particle-Traversal Frequencies""; ""2.3 Microdosimetric-Event Frequencies""; ""2.4 Various Types of Radiation Field Descriptors and Their Relationship to Risk Estimation""; ""2.5 Variation of Risk with Other Quantities""; ""2.6 Content of this Report""; ""3. Conventional Method for Assessing Risk from the Mixed High and Low Linear Energy-Transfer Radiation Environment in Space""; ""3.1 Conventional Procedure""; ""3.2 Total Cancer Risk and Cancer Tissue Weighting Factors""
327   $a""3.3 Radiation Transport and Risk Calculations""""3.4 Limitations of the Conventional System""; ""3.5 Applicability of the Conventional System""; ""4. Fluence-Based and Microdosimetric Event-Based Systems""; ""4.1 Fluence-Based Approach""; ""4.1.1 Introduction""; ""4.1.2 Idealized Application of the Fluence-Based System""; ""4.1.3 Relation to the Conventional System""; ""4.1.4 Low Linear Energy-Transfer Baseline Value of Risk Cross Section""; ""4.1.5 Treatment of Photons and Neutrons""; ""4.1.6 Strengths and Limitations""; ""4.2 The Microdosimetric Event-Based Approach""
327   $a""4.2.1 Introduction""""4.2.2 Microdosimetric-Based Quality Functions""; ""4.2.3 Low Linear Energy-Transfer Baseline from the Hiroshima Data""; ""4.2.4 Strengths and Limitations""; ""5. Practical Aspects of Radiation Measurements""; ""5.1 Introduction""; ""5.2 The Conventional Approach""; ""5.2.1 Introduction""; ""5.2.2 Cavity Ion Dosimeters""; ""5.2.3 Thermoluminescent Dosimeters""; ""5.2.4 Solid-State Nuclear Track Detectors""; ""5.2.5 Current Practice""; ""5.3 The Fluence-Based Approach""; ""5.3.1 Introduction""; ""5.3.2 Charged-Particle Telescopes""; ""5.3.3 Bubble Detectors""
327   $a""5.3.4 Neutron Recoil Spectrometers""""5.3.5 Solid-State Nuclear Track Detectors""; ""5.4 The Microdosimetric Event-Based Approach""; ""5.4.1 Introduction""; ""5.4.2 Lineal-Energy Spectrometers""; ""5.4.3 Variance Method for Measuring Dose-Mean Lineal Energy""; ""5.5 Comparison of the Practical Limitations to Implement Each Methodology""; ""6. The Biological Data Necessary""; ""6.1 Review of Available Data""; ""6.2 The Mouse Leukemia and the Rat Mammary Carcinoma Model Systems""; ""6.3 Experimental Design Considerations""; ""7. Implementation and Comparison of Methods""; ""7.1 Introduction""
327   $a""7.2 Risk Assessment""""7.3 The Fluence-Based System""; ""7.4 The Microdosimetric Event-Based System""; ""7.5 Comparison of Fluence-Based and Microdosimetric Event-Based Systems""; ""7.6 Comparison of All Three Methods for a Given Space Radiation Scenario""; ""7.6.1 Introduction""; ""7.6.2 Conventional Method""; ""7.6.3 Risk Cross-Section Approach""; ""7.6.4 Microdosimetric Event-Based Approach""; ""7.6.5 Comparison of Risks""; ""8. Conclusions, Recommendations and Suggestions for Future Research""; ""8.1 Conclusions""; ""8.2 Recommendations""; ""8.3 Suggestions for Future Research""
327   $a""Glossary""
410  0$aNCRP report ;$vno. 137.
606   $aExtraterrestrial radiation$xSafety measures
606   $aRadiation dosimetry
606   $aMicrodosimetry
606   $aManned space flight$xSafety measures
615  0$aExtraterrestrial radiation$xSafety measures.
615  0$aRadiation dosimetry.
615  0$aMicrodosimetry.
615  0$aManned space flight$xSafety measures.
676   $a616.9/80214
712 02$aNational Council on Radiation Protection and Measurements.$bScientific Committee 88 on Fluence as the Basis for a Radiation Protection System for Astronauts.
801  0$bMiAaPQ
801  1$bMiAaPQ
801  2$bMiAaPQ
906   $aBOOK
912   $a9911006577203321
996   $aFluence-based and microdosimetric event-based methods for radiation protection in space$94390975
997   $aUNINA