Reports

Conversion Coefficients for use in Radiological Protection against External Radiation (Report 57)

ICRU Report 57 is the product of a long collaboration between the ICRU and the International Commission on Radiological Protection (ICRP). The report was prepared by a Joint Task Group of the two Commissions, underwent separate review by each Commission and has been published in the series of each Commission.

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Dosimetry of External Beta Rays for Radiation Protection (Report 56)

This Report recognizes that the general aim of beta-ray dosimetry in radiation protection is to provide dosimetric information that will help in keeping any harmful effects of beta rays within acceptable limits and that, in the event of serious over-exposure, will assist medical treatment and prognosis.

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Secondary Electron Spectra from Charged Particle Interactions (Report 55)

ICRU Report No. 55 provides a comprehensive guide to quantitative information about emission of secondary electrons in collisions of fast electrons, protons, alpha particles, and heavier ions with free atoms and molecules and with condensed matter. Explanations of the various mechanisms of ionization are given.

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Medical Imaging - The Assessment of Image Quality (Report 54)

This Report proposes a framework, based on statistical decision theory, within which imaging system performance may be measured, optimized and compared. Imaging system assessment depends on the task for which the system is intended and can, therefore, be cast in terms of task performance, which can be measured in two stages.

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Gamma-Ray Spectrometry in the Environment (Report 53)

ICRU Report No. 53 was prepared in recognition of the fact that methods for quickly assessing radionuclides in the environment have become increasingly important, particularly in connection with accidental releases from nuclear facilities. Gamma-ray spectrometry, based on the measurement of the spectral distribution of the photon fluence, is used for the determination of activity levels in the ground or in the air and of radionuclide-specific dose quantities.

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Particle Counting in Radioactivity Measurements (Report 52)

This Report describes the principles involved in counting, or measuring, the flux of directly or indirectly ionizing particles, including photons, produced by radioactive samples. The emphasis is on particles and counting, i.e., on discrete random events and especially on fundamental aspects.

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