Fluence-based and microdosimetric event-based methods for radiation protection in space.

Detalles Bibliográficos
Clasificación:Libro Electrónico
Autor Corporativo: National Council on Radiation Protection and Measurements. Scientific Committee 88 on Fluence as the Basis for a Radiation Protection System for Astronauts
Formato: Electrónico eBook
Idioma:Inglés
Publicado: Bethesda, Md. : National Council on Radiation Protection and Measurements, 2001.
Colección:NCRP report ; no. 137.
Temas:
Extraterrestrial radiation > Safety measures.
Radiation dosimetry.
Microdosimetry.
Manned space flight > Safety measures.
Space environment.
Space flights.
Space flight.
Radiation Protection > methods
Aerospace Medicine
Astronauts
Extraterrestrial Environment
Space Flight
Radiometry
Rayonnement extraterrestre > Sécurité > Mesures.
Dosimétrie.
Microdosimétrie.
Vol spatial habité > Sécurité > Mesures.
Environnement spatial.
Vol spatial.
dosimetry.
Space flights
Space flight
Space environment
Manned space flight > Safety measures
Microdosimetry
Radiation dosimetry
Acceso en línea:Texto completo
Tabla de Contenidos:
  • 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
  • 3.3 Radiation Transport and Risk Calculations3.4 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
  • 4.2.1 Introduction4.2.2 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
  • 5.3.4 Neutron Recoil Spectrometers5.3.5 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
  • 7.2 Risk Assessment7.3 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

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