In vivo neutron activation facility at Brookhaven National Laboratory

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Seven important body elements, C, N, Ca, P, K, Na, and Cl, can be measured with great precision and accuracy in the in vivo neutron activation facilities at Brookhaven National Laboratory. The facilities include the delayed-gamma neutron activation, the prompt-gamma neutron activation, and the inelastic neutron scattering systems. In conjunction with measurements of total body water by the tritiated-water dilution method several body compartments can be defined from the contents of these elements, also with high precision. In particular, body fat mass is derived from total body carbon together with total body calcium and nitrogen; body protein mass is derived ... continued below

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14 p.

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Ma, R.; Yasumura, Seiichi & Dilmanian, F.A. November 1, 1997.

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Description

Seven important body elements, C, N, Ca, P, K, Na, and Cl, can be measured with great precision and accuracy in the in vivo neutron activation facilities at Brookhaven National Laboratory. The facilities include the delayed-gamma neutron activation, the prompt-gamma neutron activation, and the inelastic neutron scattering systems. In conjunction with measurements of total body water by the tritiated-water dilution method several body compartments can be defined from the contents of these elements, also with high precision. In particular, body fat mass is derived from total body carbon together with total body calcium and nitrogen; body protein mass is derived from total body nitrogen; extracellular fluid volume is derived from total body sodium and chlorine; lean body mass and body cell mass are derived from total body potassium; and, skeletal mass is derived from total body calcium. Thus, we suggest that neutron activation analysis may be valuable for calibrating some of the instruments routinely used in clinical studies of body composition. The instruments that would benefit from absolute calibration against neutron activation analysis are bioelectric impedance analysis, infrared interactance, transmission ultrasound, and dual energy x-ray/photon absorptiometry.

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14 p.

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OSTI as DE98001082

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  • Quality of the body cell mass: body composition in the third millennium, Fort Lauderdale, FL (United States), 27 Feb - 2 Mar 1997

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  • Other: DE98001082
  • Report No.: BNL--64852
  • Report No.: CONF-970296--
  • Grant Number: AC02-76CH00016
  • Office of Scientific & Technical Information Report Number: 554207
  • Archival Resource Key: ark:/67531/metadc697243

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • November 1, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • Oct. 4, 2017, 2:07 p.m.

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Ma, R.; Yasumura, Seiichi & Dilmanian, F.A. In vivo neutron activation facility at Brookhaven National Laboratory, article, November 1, 1997; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc697243/: accessed December 11, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.