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MIT LMFBR blanket research project. Quarterly progress report, July 1, 1977--September 30, 1977

Description: Irradiation experiments on Mockup 5B have been completed. A series of comparative calculations are underway on internal blanket variations. Preliminary results are presented. A fnal workup of the T/sub i/(n,p) Sc/sup 48/ and N/sub i/(n,p) Co/sup 58/ threshold traverses in Blanket Mockup 5B has been completed.
Date: January 1, 1977
Creator: Driscoll, M.J.
Partner: UNT Libraries Government Documents Department

MIT LMFBR blanket physics project progress report No. 7, July 1, 1975--September 30, 1976

Description: Work during the period was devoted primarily to a range of analytical/numerical investigations, including evaluation of means to improve external blanket designs, beneficial attributes of the use of internal blankets, improved methods for the calculation of heterogeneous self-shielding and parametric studies of calculated spectral indices. Experimental work included measurements of the ratio of U-238 captures to U-235 fissions in a standard blanket mockup, and completion of development work on the radiophotoluminescent readout of LiF thermoluminescent detectors. The most significant findings were that there is very little prospect for substantial improvement in the breeding performance of external blankets, but internal blankets continue to show promise, particularly if they are used in such a way as to increase the volume fraction of fuel inside the core envelope. An improved equivalence theorem was developed which may allow use of fast reactor methods to calculate heterogeneously self-shielded cross sections in both fast and thermal reactors.
Date: September 30, 1976
Creator: Driscoll, M.J. (ed.)
Partner: UNT Libraries Government Documents Department

MIT LMFBR blanket research project. Quarterly progress report, April 1-June 30, 1979

Description: In designing a plutonium-uranium core with thorium internal blankets there are several parameters that must be investigated to identify the design with the best performance. Choices include: the amount of moderation in the blanket, whether moderation is incorporated from the outset or added after an assembly is shuffled to the external blanket, and the cycle length both for the core and internal blanket assemblies. To investigate the effect of these parameters several core and blanket burnup analyses were performed.
Date: July 25, 1979
Creator: Driscoll, M.J.
Partner: UNT Libraries Government Documents Department

MIT LMFBR blanket research project. Final summary report

Description: This is a final summary report on an experimental and analytical program for the investigation of LMFBR blanket characteristics carried out at MIT in the period 1969 to 1983. During this span of time, work was carried out on a wide range of subtasks, ranging from neutronic and photonic measurements in mockups of blankets using the Blanket Test Facility at the MIT Research Reactor, to analytic/numerical investigations of blanket design and economics. The main function of this report is to serve as a resource document which will permit ready reference to the more detailed topical reports and theses issued over the years on the various aspects of project activities. In addition, one aspect of work completed during the final year of the project, on doubly-heterogeneous blanket configurations, is documented for the record.
Date: August 1, 1983
Creator: Driscoll, M.J.
Partner: UNT Libraries Government Documents Department

MIT LMFBR Blanket Research Project. Quarterly progress report, January 1-March 31, 1980

Description: During FY 1980 work is being carried out on the following subtasks: evaluation of the thermal/hydraulic/mechanical consequences of enhanced fertile and fissile capture rates at interfaces; development of simpler ways to estimate interface capture rate enhancement; particularization of the breed/burn internal/external blanket management scheme; and participation in the Large Core Code Evaluation Working Group (LCCEWG) program.
Date: May 31, 1980
Creator: Driscoll, M.J.
Partner: UNT Libraries Government Documents Department

MIT LMFBR blanket research project. Quarterly progress report, October 1, 1980-December 31, 1980

Description: Information on heterogeneous assembly evaluation is presented concerning ringed moderator description and flux trap description; cross section generation; ringed moderator results; effects of heterogeneous moderation; sodium void worth breakdown; flux trap configuration; flux trap results; the effects of stoichiometric variation in the moderator; and the effects of lattice representation. Also discussed is the engineering compatibility of heterogeneous assembly designs.
Date: March 26, 1981
Creator: Driscoll, M.J.
Partner: UNT Libraries Government Documents Department

MIT LMFBR blanket research project. Quarterly progress report, October 1, 1975--December 31, 1975

Description: Progress in the experimental and theoretical investigation of LMFBR breeding blanket design parameters is reported. Generalized dimensionless correlations have been developed to predict fuel composition over life from beginning-of-life static calculations or measurements. (DG)
Date: January 1, 1975
Creator: Driscoll, M. J.
Partner: UNT Libraries Government Documents Department

LMFBR Blanket Physics Project progress report No. 6

Description: Progress is summarized in experimental and analytical investigations of the neutronics and photonics of benchmark mockups of LMFBR blankets. During the reporting period work was devoted primarily to a wide range of analytical/numerical investigations, including blanket fuel management/economics studies, evaluation of improved blanket designs, and assessment of state-of-the-art methods for gamma heating calculations. Experimental work included preparations for resumption of MIT Reactor operations, primarily fabrication of improved steel reflector assemblies for blanket mockups, and development of an improved radiophotoluminescent readout device for LiF thermoluminescent detectors. The most significant finding was that the neutronic and economic performance of radial blanket assemblies are essentially independent of core size (rating) for radially-power-flattened cores. Hence the methodology and results of current experiments and calculations should be valid for the large commercial LMFBR's of the future.
Date: June 30, 1975
Creator: Driscoll, M. J. (ed.)
Partner: UNT Libraries Government Documents Department