Characterization of Dosimetry of the BMRR Horizontal Thimble Tubes and Broad Beam Facility.

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The Brookhaven Medical Research Reactor was a 5 mega-watt, light-water cooled and heavy-graphite moderated research facility. It has two shutter-equipped treatment rooms, three horizontally extended thimble tubes, and an ex-core broad beam facility. The three experimental thimbles, or activation ports, external to the reactor tank were designed for several uses, including the investigations on diagnostic and therapeutic methods using radioactive isotopes of very short half-life, the analysis of radiation exposure on tissue-equivalent materials using a collimated neutron beam, and the evaluation of dose effects on biological cells to improve medical treatment. At the broad beam facility where the distribution of ... continued below

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Hu,J.P.; Reciniello, R.N. & Holden, N.E. May 5, 2008.

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The Brookhaven Medical Research Reactor was a 5 mega-watt, light-water cooled and heavy-graphite moderated research facility. It has two shutter-equipped treatment rooms, three horizontally extended thimble tubes, and an ex-core broad beam facility. The three experimental thimbles, or activation ports, external to the reactor tank were designed for several uses, including the investigations on diagnostic and therapeutic methods using radioactive isotopes of very short half-life, the analysis of radiation exposure on tissue-equivalent materials using a collimated neutron beam, and the evaluation of dose effects on biological cells to improve medical treatment. At the broad beam facility where the distribution of thermal neutrons was essential uniform, a wide variety of mammalian whole-body exposures were studied using animals such as burros or mice. Also studied at the broad beam were whole-body phantom experiments, involving the use of a neutron or photon beam streaming through a screen to obtain the flux spectrum suitable for dose analysis on the sugar-urea-water mixture, a tissue-equivalent material. Calculations of the flux and the dose at beam ports based on Monte Carlo particle-transport code were performed, and measurements conducted at the same tally locations were made using bare or cadmium-covered gold foils. Analytical results, which show good agreement with measurement data, are presented in the paper.

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  • 13th International Symposium on Reactor Dosimetry; Alkmaar, the Netherlands; 20080525 through 20080530

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  • Report No.: BNL--80232-2008-CP
  • Grant Number: DE-AC02-98CH10886
  • Office of Scientific & Technical Information Report Number: 929351
  • Archival Resource Key: ark:/67531/metadc897472

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  • May 5, 2008

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  • Sept. 27, 2016, 1:39 a.m.

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  • Nov. 1, 2016, 2:28 p.m.

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Hu,J.P.; Reciniello, R.N. & Holden, N.E. Characterization of Dosimetry of the BMRR Horizontal Thimble Tubes and Broad Beam Facility., article, May 5, 2008; United States. (digital.library.unt.edu/ark:/67531/metadc897472/: accessed October 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.