Download or read book Measurements for the JASPER Program Axial Shield Re measurement Experiment written by and published by . This book was released on 1993 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: With one modification, this series of measurements is a repeat of several of the mockups that were investigated during the Axial Shield Experiment performed earlier for the Japanese-American Shielding Program for Experimental Research (JASPER) program at the Tower Shielding Facility (TSF). For these re-runs, slabs of lithiated paraffin, 10.16 cm thick and 152.4 cm on an edge, were placed between the spectrum modifier and the axial shield and directly behind the axial shield. Each of the slabs contained a void area that corresponded in dimension and location, to the surface area of the seven hexagons in the axial shield plus the boron carbide (B4C) collar that surrounded them. The lithiated paraffin was made part of the mockup to reduce the neutron contributions to the detector from those neutrons passing through the concrete surrounding the hexagon assemblies. The slabs were present in all of the mockups except one, for which the lithiated paraffin following the axial shield was removed. Spectral and integral flux measurements were made behind the axial shield for six B4C homogeneous-type assembly containing: (1) the B4C rod bundle assembly; (2) the B4C central blockage type; (4) the B4C central sodium type; and (4) another B4C homogeneous-type assembly. The neutron source was the Tower Shielding Reactor II (TSR-II) modified to give a flux typical of that incident on the axial shielding in a Liquid Metal Reactor (LMR).
Download or read book Measurements for the JASPER Program Axial Shield Experiment written by and published by . This book was released on 1991 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Axial Shield Experiment was conducted at the Oak Ridge National Laboratory (ORNL) during 1990--1991 as part of the continuing series of eight experiments planned for the Japanese-American Shielding Program for Experimental Research (JASPER) program starting in 1986. The program is intended to provide support for the development of current designs proposed for advanced liquid metal reactor (LMR) system both in Japan and the United States. As in the previous two experiments, the same spectrum modifier was used to alter the Tower Shielding Reactor source spectrum to one representing the LMR neutron spectra directly above the core in the area of the fission-gas plenum. In one of the measurements the spectrum was further modified by the fission gas plenum. In all cases the modified spectrum was followed by combinations of seven hexagon assemblies that represented different coolant flow and shielding patterns within the assemblies. The varied configuration permitted not only a study of the different designs, but also allowed a comparison to be made of the relative neutron attenuation effectiveness of boron carbide and stainless steel in such designs. This experiment was the third in a series of eight experiments to be performed as part of a cooperative effort between the United States Department of Energy (US DOE) and the Japan Power Reactor and Nuclear Fuel Development Corporation (PNC). This experiment, as was the previous Radial Shield Attenuation and Fission Gas Plenum Experiments, intended to provide support for the development of advanced sodium-cooled reactors. 5 refs.
Download or read book Proceedings of the 1998 ANS Radiation Protection and Shielding Division Topical Conference written by and published by . This book was released on 1998 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurements for the Jasper Program Intermediate Heat Exchanger Experiment written by and published by . This book was released on 1992 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Intermediate Heat Exchanger (IHX) experiment was conducted at the Oak Ridge National Laboratory (ORNL) Tower shielding Facility (TSF) during the last three months of 1991 and the first two months of 1992 as part of a continuing series of eight experiments planned for the Japanese-American shielding Program for Experimental Research (JASPER) program that was started in 1986. This is the fifth experiment in that series, all of which are intended to provide support in the development of current reactor shield designs proposed for liquid metal reactor (LMR) systems both in Japan and the United States. The program is a cooperative effort between the United States Department of Energy (US DOE) and the japanese Power Reactor and Nuclear Development Corporation (PNC). The experimental configurations consisted of a neutron spectrum modifier followed by various shield mockups. For the PNC portion of the program the modifier was a large volume of sodium typical of the area in which their IHX vessel would be located radially from the reactor core. configurations studied in the US part of the program were preceded by the same modifier of iron, aluminum, boral, and sodium used with the Advanced Liquid Metal Reactor (ALMR) mockups in the previous In- Vessel Fuel Storage (IVFS) experiment. This modifier was followed by mockups representative of three different off-axial locations that were being considered for placement of the IHX vessel. The PNC plan was concerned with the effort of surrounding a mockup of the sodium containing IHX vessel by a partial or full component boron carbide (B4C) shield.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1991 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Topical Meeting on Radiation Protection for Our National Priorities written by and published by . This book was released on 2000 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Topical Meeting on New Horizons in Radiation Protection and Shielding written by and published by . This book was released on 1992 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the 1996 Topical Meeting Radiation Protection Shielding No Falmouth Massachusetts April 21 25 1996 written by and published by . This book was released on 1996 with total page 614 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 1990 with total page 764 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 1996 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1994 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Information of Japan Oral Presentation written by and published by . This book was released on 1993 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of International Conference on Nuclear Data for Science and Technology written by and published by . This book was released on 2002 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindex written by and published by . This book was released on 1988 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radiation Shielding written by J. Kenneth Shultis and published by Amer Nuclear Society. This book was released on 2000-01-01 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: This newly published book is intended for dual use as a textbook for students in radiation shielding courses and a reference work for shielding practitioners. It emphasizes the principles behind techniques used in various aspects of shield analysis and presents these principles in many different contexts. This approach is intended to provide a strong base of understanding in order to facilitate use of the large shielding codes that have come to dominate shielding design and analysis. An assumption is made that the reader has an understanding of mathematics through basic calculus and vector analysis as well as a knowledge of the nuclear physics of radioactive decay. For most chapters, problem sets are provided.
