Author: C. S. CookPublisher:
ISBN:
Category : Collimators (Optical instrument)
Languages : en
Pages : 30
Book Description
Calculation of the Penetration of Gamma Rays Through the Edges of a 1/2-in. Diameter Lead Collimator
Author: C. S. CookPublisher:
ISBN:
Category : Collimators (Optical instrument)
Languages : en
Pages : 30
Book Description
An Evaluation of Radiation Exposure Guidance for Military Operations
Author: Institute of MedicinePublisher: National Academies Press
ISBN: 0309058953
Category : Science
Languages : en
Pages : 78
Book Description
Adverse Reproductive Outcomes in Families of Atomic Veterans
Author: Institute of MedicinePublisher: National Academies Press
ISBN: 0309176115
Category : Medical
Languages : en
Pages : 107
Book Description
Over the past several decades, public concern over exposure to ionizing radiation has increased. This concern has manifested itself in different ways depending on the perception of risk to different individuals and different groups and the circumstances of their exposure. One such group are those U.S. servicemen (the "Atomic Veterans" who participated in the atmospheric testing of nuclear weapons at the Nevada Test Site or in the Pacific Proving Grounds, who served with occupation forces in or near Hiroshima and Nagasaki, or who were prisoners of war in or near those cities at the time of, or shortly after, the atomic bombings. This book addresses the feasibility of conducting an epidemiologic study to determine if there is an increased risk of adverse reproductive outcomes in the spouses, children, and grandchildren of the Atomic Veterans.
Neutrons and Related Gamma Ray Problems / Neutronen und Verwandte Gammastrahlprobleme
Author: Edoardo AmaldiPublisher: Springer Science & Business Media
ISBN: 364245920X
Category : Science
Languages : en
Pages : 874
Book Description
661 tures, such as occurs in stellar atmospheres and in thermonuc1ear processes, will not be considered 1. Because photoelectric absorption predominates completely at low photon energies, and penetration theory is elementary under these conditions, attention is directed in this artic1e to photon energies above ""20 kev. On the high energy side, this artic1e does not cover the cascade shower processes which are dealt 2 with in cosmic ray studies • In this connection it is recalled that the cascade shower process, which involves electrons and positrons besides X rays, becomes predominant above 10 Mev in heavy elements, and above 100 Mev in light ones. Theories developed for the study of cascade showers in cosmic rays rely on assumptions about the prob ability of interactions with matter which are adequate only at energies of the order of 1 Gev or more. Below this energy there is a gap in which penetration phenomena are qualitatively known and understood but have not yet been calculated in detail. A few detailed experimental studies which have been made at energies up to 300 Mev will be reviewed in this article.
Status of the Dosimetry for the Radiation Effects Research Foundation (DS86)
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309075599
Category : Science
Languages : en
Pages : 211
Book Description
The Committee on Dosimetry for the Radiation Effects Research Foundation (RERF) was set up more than a decade ago at the request of the U.S. Department of Energy. It was charged with monitoring work and experimental results related to the Dosimetry System 1986 (DS86) used by RERF to reconstruct the radiation doses to the survivors in Hiroshima and Nagasaki. At the time it was established, DS86 was believed to be the best available dosimetric system for RERF, but questions have persisted about some features, especially the estimates of neutrons resulting from the Hiroshima bomb. This book describes the current situation, the gamma-ray dosimetry, and such dosimetry issues as thermal-neutron discrepancies between measurement and calculation at various distances in Hiroshima and Nagasaki. It recommends approaches to bring those issues to closure and sets the stage for the recently convened U.S. and Japan Working Groups that will develop a new dosimetry for RERF. The book outlines the changes relating to DS86 in the past 15 years, such as improved numbers that go into, and are part of, more sophisticated calculations for determining the radiations from bombs that reach certain distances in air, and encourages incorporation of the changes into a revised dosimetry system.
Radiological Health Handbook
Author: Remote Compositional Analysis
Author: Janice L. BishopPublisher: Cambridge University Press
ISBN: 110718620X
Category : Language Arts & Disciplines
Languages : en
Pages : 655
Book Description
Comprehensive overview of the spectroscopic, mineralogical, and geochemical techniques used in planetary remote sensing.
Protection Against Betatron-synchrotron Radiations Up to 100 Million Electron Volts
Author: National Committee on Radiation Protection (U.S.)Publisher:
ISBN:
Category : Radioactivity
Languages : en
Pages : 66
Book Description
Passive Nondestructive Assay of Nuclear Materials
Author: Doug ReillyPublisher:
ISBN: 9780160327247
Category : Non-destructive testing
Languages : en
Pages : 700
Book Description
Radiation Source Use and Replacement
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309110149
Category : Medical
Languages : en
Pages : 232
Book Description
In the United States there are several thousand devices containing high-activity radiation sources licensed for use in areas ranging from medical uses such as cancer therapy to safety uses such as testing of structures and industrial equipment. Those radiation sources are licensed by the U.S. Nuclear Regulatory Commission and state agencies. Concerns have been raised about the safety and security of the radiation sources, particularly amid fears that they could be used to create dirty bombs, or radiological dispersal device (RDD). In response to a request from Congress, the U.S. Nuclear Regulatory Commission asked the National Research Council to conduct a study to review the uses of high-risk radiation sources and the feasibility of replacing them with lower risk alternatives. The study concludes that the U.S. government should consider factors such as potential economic consequences of misuse of the radiation sources into its assessments of risk. Although the committee found that replacements of most sources are possible, it is not economically feasible in some cases. The committee recommends that the U.S. government take steps to in the near term to replace radioactive cesium chloride radiation sources, a potential "dirty bomb" ingredient used in some medical and research equipment, with lower-risk alternatives. The committee further recommends that longer term efforts be undertaken to replace other sources. The book presents a number of options for making those replacements.