Download or read book Neutron and Gamma ray Streaming Through a Two legged Thick wall Steel Duct written by L. B. Gardner and published by . This book was released on 1968 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the study was to determine the validity of simplified formulas for calculating the protection against streaming neutrons and gamma rays afforded by thick-wall steel ducts. The report summarizes the results of neutron and gamma-ray dose calculations by albedo techniques and the results of gamma-ray dose measurements performed for a two-legged, thick-wall steel duct. Original data are presented for (1) the Monte Carlo calculation of neutron and gamma-ray streaming; (2) survey meter measurement of neutron dose; (3) the measurement of neutron energy spectra by foil activation techniques and subsequent calculation of dose; and (4) the measurement of prompt gamma rays by a liquid scintillation detector and by pulse shape discrimination. The dose normalized to the dose at 1 centimeter in free air is a common parameter, allowing the intercomparison of the different experimental and theoretical results. The work varifies the semiemperical formulas of Song and Chapman for the calculation of normalized dose rates resulting from neutrons and gamma rays streaming through thick-wall steel ducts. It is also shown that 05R/STATEST and OGRE-G computer codes are considerably more precise than the ADONIS code for the same use of computer time. Concrete ducts are seen to offer slightly more protection than thick-wall steel ducts. (Author).
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1968 with total page 1144 pages. Available in PDF, EPUB and Kindle. Book excerpt: NSA is a comprehensive collection of international nuclear science and technology literature for the period 1948 through 1976, pre-dating the prestigious INIS database, which began in 1970. NSA existed as a printed product (Volumes 1-33) initially, created by DOE's predecessor, the U.S. Atomic Energy Commission (AEC). NSA includes citations to scientific and technical reports from the AEC, the U.S. Energy Research and Development Administration and its contractors, plus other agencies and international organizations, universities, and industrial and research organizations. References to books, conference proceedings, papers, patents, dissertations, engineering drawings, and journal articles from worldwide sources are also included. Abstracts and full text are provided if available.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1973 with total page 1162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide to Technical Documents written by Naval Civil Engineering Laboratory (Port Hueneme, Calif.) and published by . This book was released on 1974 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On gamma ray shielding and neutron streaming through ducts written by Jan L. Kloosterman and published by . This book was released on 1992 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Transmission of Neutrons and Gamma rays Through Air Slots The mechanical construction of the slots and representative background data written by Robert D. Schamberger and published by . This book was released on 1954 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Development Reports written by and published by . This book was released on 1969-03 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dose Measurements of Gamma Radiation Streaming Through Concrete Ducts with and Without Lead Liners and Through Corrugated Steel Ducts written by J. M. Chapman and published by . This book was released on 1968 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dosimeter measurements were taken in a 3-foot-square, two-legged concrete duct, with and without the presence of lead sheets covering the basic scattering areas in the corner, to determine the effectiveness of lead sheeting in reducing gamma radiation. For Co60 radiation, the lead sheets reduced the dose rate in the second leg of the duct down to 46% of the dose rate measured in the second leg of the duct without lead sheets, and for Cs137 radiation the reduction was down to 36%. Calculations were made to determine the effectiveness of the sheets in different size ducts, and comparisons were made with other methods for reducing radiation. Measured attenuation factors for a circular, thin-walled, corrugated steel duct were compared to values calculated by a simple computer program for a square, thick-walled steel duct. It appears that the computer code can be used to approximate attenuation factors for a corrugated steel duct. (Author).
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1968 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dose attenuation Variation with Incident Gamma ray Energy in Two legged Concrete and Steel Ducts written by J. M. Chapman and published by . This book was released on 1966 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transactions of the American Nuclear Society written by American Nuclear Society and published by . This book was released on 1985 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Nuclear Science and Technology written by and published by . This book was released on 1988 with total page 1118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes English language abstracts from Japanese articles in Nihon Genshiryoku Gakkai Shi (Journal of the Atomic Energy Society of Japan).
Download or read book Energy Research Abstracts written by and published by . This book was released on 1978 with total page 1150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research and Development Reports Index written by and published by . This book was released on 1968 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radiation Protection in Nuclear Power Plants and the Fuel Cycle written by and published by Thomas Telford Publishing. This book was released on 1978 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparison of Measured and Calculated Neutron and Gamma ray Energy Spectra Behind an In line Shielded Duct written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Integral experiments that measure the transport of approx. 14 MeV neutrons through a 0.30-m-diameter duct having a length-to-diameter ratio of 2.83 that is partially plugged with a 0.15 m diameter, 0.51 m long shield comprised of alternating layers of stainless steel type 304 and borated polyethylene have been carried out at the Oak Ridge National Laboratory. Measured and calculated neutron and gamma ray energy spectra are compared at several locations relative to the mouth of the duct. The measured spectra were obtained using an NE-213 liquid scintillator detector with pulse shape discrimination methods used to simultaneously resolve neutron and gamma ray events. The calculated spectra were obtained using a computer code network that incorporates two radiation transport methods: discrete ordinates (with P/sub 3/ multigroup cross sections) and Monte Carlo (with continuous point cross sections). The two radiation transport methods are required to account for neutrons that singly scatter from the duct to the detectors. The calculated and measured neutron energy spectra above 850 keV agree with 5 to 50% depending on detector location and neutron energy. The calculated and measured gamma ray energy spectra above 750 keV are also in favorable agreement, approx. 5 to 50%, depending on detector location and gamma ray energy.
Download or read book U S Government Research and Development Reports written by and published by . This book was released on 1969 with total page 1174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
