Results 191 to 200 of about 2,664 (222)
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Accelerator‐based epithermal neutron beam design for neutron capture therapy
Medical Physics, 1992Recent interest in the production of epithermal neutrons for use in boron neutron capture therapy (BNCT) has prompted an investigation into the feasibility of generating such neutrons with a high current proton accelerator. Energetic protons (2.5 MeV) on a 7Li target produce a spectrum of neutrons with maximum energy of roughly 800 keV.
J C, Yanch +3 more
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Evaluation of an iron‐filtered epithermal neutron beam for neutron‐capture therapy
Medical Physics, 1991An epithermal neutron filter using iron, aluminum, and sulfur was evaluated to determine if the therapeutic performance could be improved with respect to aluminum–sulfur‐based filters. An empirically optimized filter was developed that delivered a 93% pure beam of 24‐keV epithermal neutrons. It was expected that a thick filter using iron with a density
S V, Musolino +4 more
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Study of parity nonconversation with epithermal neutrons
SPIE Proceedings, 1997I describe a new generation of experiments studying the weak interaction between nucleons. Measurements of the effect of this interaction are few in number and the significance of the observed effects are generally small. It is well known that the weak interaction violates parity. This was first experimentally established by C. S.
Susan J. Seestrom +17 more
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A state-of-the-art epithermal neutron irradiation facility for neutron capture therapy
Physics in Medicine and Biology, 2004At the Massachusetts Institute of Technology (MIT) the first fission converter-based epithermal neutron beam (FCB) has proven suitable for use in clinical trials of boron neutron capture therapy (BNCT). The modern facility provides a high intensity beam together with low levels of contamination that is ideally suited for use with future, more selective
K J, Riley, P J, Binns, O K, Harling
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Physics in Medicine & Biology, 1965
The possibility exists of destroying neoplastic cells in vivo by introducing a suitable neutron-capturing isotope such as 10B and subsequently irradiating the area with a beam of thermal neutrons (energy < 0·5eV). An advantage can be gained by using epithermal neutrons (energy 10 KeV to 0·5eV), since they provide deeper penetration in tissue than do ...
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The possibility exists of destroying neoplastic cells in vivo by introducing a suitable neutron-capturing isotope such as 10B and subsequently irradiating the area with a beam of thermal neutrons (energy < 0·5eV). An advantage can be gained by using epithermal neutrons (energy 10 KeV to 0·5eV), since they provide deeper penetration in tissue than do ...
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The Sidewall Epithermal Neutron Porosity Log
Journal of Petroleum Technology, 1966Abstract A sidewall epithermal neutron tool has been developed to substantially reduce environmental effects that have previously complicated neutron log interpretation. Designed for operation in uncased wells, the device provides increased accuracy in both liquid-filled and empty holes.
J. Tittman, H. Sherman, W.A. Nagel
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DEVELOPMENT OF NEUTRON DOSIMETERS FOR FAST AND EPITHERMAL NEUTRONS
1980Y. Eisen +5 more
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The determination of iodine in thyroid gland with epithermal neutrons
Analytica Chimica Acta, 1970D, Brune, P O, Wester
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