Results 161 to 170 of about 17,679 (196)

Epithermal paleosurfaces

Mineralium Deposita, 2015
Many active volcanic-hydrothermal and geothermal systems are characterized by distinctive surface and near-surface landforms and products, which are generated during discharge of a spectrum of fluid types under varied conditions. Remnants of most of these products are preserved in some of their less-eroded, extinct equivalents: epithermal deposits of ...
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Epithermal neutron activation analysis of food

Journal of Radioanalytical and Nuclear Chemistry, 1999
Food samples were irradiated with thermal and epithermal neutrons. The average ratios of thermal to epithermal activity were determined for80Br,49Ca,38Cl,60mCo,42K,27Mg,56Mn,24Na, and86mRB. They were equal to 2.1, 26, 24, 6.6, 19, 16, 11, 23 and 1.9, respectively.
L. Zikovsky, K. Soliman
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Biological Dosimetry for Epithermal Neutron Beams

Radiation Research, 2001
The radiobiological effectiveness of an epithermal neutron beam is described using cell survival as the end point. The M67 epithermal neutron beam at the Nuclear Reactor Laboratory, Massachusetts Institute of Technology, that was used for clinical trials of boron neutron capture therapy was used to irradiate Chinese hamster ovary cells at seven depths ...
S M, White, K D, Held, M R, Palmer, J C, Yanch   +3 more
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BINP accelerator based epithermal neutron source

Applied Radiation and Isotopes, 2011
Innovative facility for neutron capture therapy has been built at BINP. This facility is based on compact vacuum insulation tandem accelerator designed to produce proton current up to 10 mA. Epithermal neutrons are proposed to be generated by 1.915-2.5 MeV protons bombarding a lithium target using (7)Li(p,n)(7)Be threshold reaction.
V, Aleynik, A, Burdakov, V, Davydenko, A, Ivanov, V, Kanygin, A, Kuznetsov, A, Makarov, I, Sorokin, S, Taskaev   +8 more
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Activation by Epithermal Neutrons

1964
The considerations begun in Chapter 11 will now be extended to the practically important case in which the neutron field contains both thermal and epithermal neutrons. The very same activity that can be excited by absorption of thermal neutrons in the probe substance can also be excited by absorption of epithermal neutrons, and it is necessary to ...
K. H. Beckurts, K. Wirtz
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Observation of epithermal 2S muonium

Hyperfine Interactions, 1984
A slow muon beam was passed through a thin aluminium foil and the emerging beam was studied for the presence of muonium in the 2S state. The fraction and the velocity distribution of the 2S muonium was determined.
C. A. Fry, J. B. Warren, R. F. Kiefl, C. J. Oram, G. A. Ludgate, P. W. Schmor, A. Olin, G. M. Marshall, B. Erickson, G. Morris   +9 more
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Epithermal neutron activation analysis

Journal of Radioanalytical and Nuclear Chemistry Articles, 1985
Different modes of epithermal neutron activation analysis are described. The principles and examples are given for each.
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Georgia Tech Research Reactor Epithermal Beam

1990
This report describes the design, construction, neutron spectrum measurements, and gamma dose measurements for an epithermal-neutron beam at the Georgia Tech Research Reactor (GTRR). The GTRR facility, the filter geometry, and the materials are described.
J L, Russell, W H, Miller, R M, Brugger, W H, Herleth   +3 more
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Epithermal ageing mechanism of gussasphalt

Journal of Wuhan University of Technology-Mater. Sci. Ed., 2009
The normal asphalt index test, DSR test, FTIR and the GPC distribution analysis of molecular weight on the extraction and recovery of asphalt of the gussasphalt, SMA extraction and recovery of asphalt and the rotary-thin-film-oven-aged asphalt above 240 °C were introduced. The results indicate the rutting factor and fatigue factor of the extraction and
Zengheng Hao, Yiqiu Tan, Xiaoning Zhang, Feng Zhang   +3 more
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Measurements of η for U233, U235 AND Pu239 With epithermal neutrons with epithermal neutrons

Journal of Nuclear Energy (1954), 1957
Abstract The behaviour of η for U 233 , U 235 and Pu 239 has been investigated in the epithermal energy region. For U 233 , η remains constant eneto energies of the order of 100 eV. The value for Pu 239 falls by 12% in passing from a thermal spectrum to a spectrum bounded by 0·15 and 0·5 eV, but remains constant thereafter.
P.E. Spivak, B.G. Erozolimsky, G.A. Dorofeev, Y.N. Lavrenchik, I.G. Kutikov, Y.P. Dobrynin   +5 more
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