Results 171 to 180 of about 2,664 (222)

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.
A A Ivanov, Vladimir Kanygin, A Makarov   +2 more
exaly   +3 more sources

Development of resonant detectors for epithermal neutron spectroscopy at pulsed neutron sources

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2004
New perspectives for epithermal neutron spectroscopy are opened by the development of new detectors for inverse Geometry time of flight spectrometers at pulsed neutron sources. One example is the Very Low Angle Detector (VLAD) bank planned to be delivered, within the next 4 years, within the eVERDI project, on the neutron spectrometer VESUVIO.
Tardocchi, M, Pletropaolo, A, SENESI, ROBERTO, ANDREANI, CARLA, Gorini, G.   +4 more
openaire   +3 more sources

Enhancement of the epithermal neutron beam used for boron neutron capture therapy

International Journal of Radiation Oncology Biology Physics, 1994
This report describes a study to enhance the epithermal neutron beam at the Brookhaven Medical Research Reactor by increasing the epithermal neutron flux and/or reducing contamination by fast neutrons.The beam was reevaluated using Monte Carlo calculations and flux and dose measurements in air and in an ellipsoidal head phantom at the patient ...
Hungyuan B Liu, Robert M Brugger, R M Brugger   +2 more
exaly   +3 more sources

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
openaire   +1 more source

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
openaire   +2 more sources

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
openaire   +1 more source

Design and performance of an epithermal neutron detector based on PFN

Applied Radiation and Isotopes, 2023
In this paper, an epithermal neutron detector suitable for the Prompt Fission Neutron (PFN) uranium logging method is designed by Monte Carlo simulation. According to the simulation results, the epithermal neutron detector composed of a 1 mm cadmium (Cd) layer, a 5 mm high-density polyethylene (HDPE) layer, and a 3He tube is sensitive to epithermal ...
YuChao Yang, Xiongjie Zhang, Yan Zhang, Bin Tang, Jinhui Qu, Jun Qiu, Chunqing Fu, Guanbo Wang   +7 more
openaire   +2 more sources

A prototype epithermal neutron beam for boron neutron capture therapy

Medical Physics, 1986
An epithermal neutron beam has been designed and tested at the Georgia Insitute of Technology's 5‐MW Research Reactor. The prototype facility consists of aluminum and sulfur disks in a tangential beam port for fast neutron filtration. A cadmium sheet at the port exit removes the thermal neutrons from the transmitted beam, leaving an intensely ...
D J, Noonan, J L, Russell, R M, Brugger
openaire   +2 more sources

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
openaire   +1 more source

Toxicity to rabbit retina of “epithermal” neutron beam

International Journal of Nuclear Medicine and Biology, 1974
Abstract A comparison was made between the 24-hr effects of fully thermalized and partially thermalized atomic pile radiation on four metabolic indicators in rabbit retina. The purpose was to estimate the retinal toxic effect of each quality of radiation relative to the thermal neutron fluence available in the posterior ocular segment for neutron- 10
D.L Krohn, J.C Newton, M.C Barsa-Newton, J.H Jacobson, R.F Straub, J.S Robertson   +5 more
openaire   +2 more sources