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This publication addresses recent developments in neutron generator (NG) technology. It presents information on compact instruments with high neutron yield to be used for neutron activation analysis (NAA) and prompt gamma neutron activation analysis in combination with high count rate spectrometers. Traditional NGs have been shown to be effective for applications including borehole logging, homeland security, nuclear medicine and the on-line analysis of aluminium, coal and cement. Pulsed fast thermal neutron analysis, as well as tagged and timed neutron analysis, are additional techniques which can be applied using NG. Furthermore, NG can effectively be used for elemental analysis and is also effective for analysis of hidden materials by neutron radiography. Useful guidelines for developing NG based research laboratories are also provided in this publication.
"This report of the National Council on Radiation Protection and Measurements (NCRP) is concerned with radiations produced by accelerators of charged particles having energies from 9.1 to 100 MeV. The material in this report includes recommendations concerning structural shielding and details of accelerator-facility design as they pertain to radiation protection. The scientific committee responsible for the preparation of this report was charged with preparing a guide to good practice in radiation protection for all types of particle accelerators, taking into full consideration their broad application in research, medicine, and industry. In carrying out this objective, the committee has endeavored to organize into a single report the recommendations and guidelines for the many accelerator designs, performance ratings, and applications, without resorting to over-generalization or undue conservatism. There is some overlap of this report with the coverage of other NCRP reports, but an attempt has been made to limit duplication of material except where it is justified for the sake of continuity, or because of the need to complement the coverage of the following existing NCRP reports, or to update their information and recommendations: NCRP Report Nos. 14 (1954a); 31 (1964b); 34 (1970a), which was superseded by NCRP Report No. 49 (1976); 38 (1971a)." --From the Preface, page iii.
The purpose of this Report is to provide design guidelines for radiation protection, and to identify those aspects of radiological safety that are of major, or even unique, importance to the operation of particle accelerator installations and to suggest methods by which safe operation may be achieved. The report is written from an engineering physics viewpoint and is intended to be useful to those engaged in the design and operation of accelerators, particularly in smaller institutions and organizations that do not have a large radiological-protection staff.
Over fifty years have passed since the first patient was treated with fast neutrons, but this form of therapy is still a matter of bitter dispute. Neutron generators have been installed in many countries and now patients can be treated with equipment that is technically similar to modern megavoltage x-ray equipment. The Physics and Radiobiology of Fast Neutron Beams presents a full discussion of the physical and radiobiological factors governing the production and use of fast neutron beams for therapy. The book discusses vastly improved neutron generators, advances in the standardization of dosimetric methods, and the specification of radiation quality. In addition, it explores nuclear methods of analysis, particularly neutron activation analysis in vivo. Influencing the place of radiotherapy with neutrons and other heavy particles, the radiobiological factors governing the treatment of cancer with radiation are examined. The author also studies the radiation hazard of neutrons, a matter of importance in the use of neutrons for chemical analysis in vivo. The Physics and Radiobiology of Fast Neutron Beams will be a valuable introduction to the subject for radiotherapists, medical physicists, radiographers, and radiobiologists new to the field. The book is also a useful summary of current knowledge for those already established in the use of fast neutrons for medical purposes.
First multi-year cumulation covers six years: 1965-70.
This publication contains information on the dosimetry and monitoring of tritium, the use of protective clothing for work with tritium, safe practices in tritium handling laboratories and details of tritium compatible materials. The information has been compiled from experience in the various applications of tritium and should represent valuable source material to all users of tritium, including those involved in fusion R&D.