Search Results - "Olsher, Richard H."

Use of Transportable Radiation Detection Instruments to Assess Internal Contamination from Intakes of Radionuclides Part II: Calibration Factors and ICAT Computer Program by Anigstein, Robert, Olsher, Richard H, Loomis, Donald A, Ansari, Armin

“…ABSTRACTThe detonation of a radiological dispersion device or other radiological incidents could result in widespread releases of radioactive materials and…”
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High-energy response of the PRESCILA and WENDI-II neutron rem meters by Olsher, Richard H., McLean, Thomas D.

“…WENDI-II was designed at the Los Alamos National Laboratory (LANL) specifically as a wide-range rem meter, suitable for applications at particle accelerators,…”
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WENDI: AN IMPROVED NEUTRON REM METER by Olsher, Richard H, Hsu, Hsiao-Hua, Beverding, Anthony, Kleck, Jeffrey H, Casson, William H, Vasilik, Dennis G, Devine, Robert T

“…Neutron rem meters are routinely used for real-time field measurements of neutron dose equivalent where neutron spectra are unknown or poorly characterized…”
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A 3He COUNTER VERSION OF THE THERMO FISHER SCIENTIFIC NRD NEUTRON REM METER by Olsher, Richard H, Seagraves, David T

“…Thermo Fisher Scientific’s NRD rem meter has been in production for almost 40 y and is the primary rem meter in use at many U.S. Department of Energy…”
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A TECHNICAL BASIS FOR THE CONTINUED USE OF EXPOSURE AS AN ACCEPTABLE OPERATIONAL QUANTITY IN RADIATION PROTECTION by Olsher, Richard H, McLean, Thomas D, Justus, Alan L

“…Within the tabulated values of the new [to U.S. Department of Energy (DOE)] radiation weighting factors, it can be seen that a doubling of the neutron factor…”
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Application of a sitting MIRD phantom for effective dose calculations by Olsher, Richard H., Van Riper, Kenneth A.

“…In typical realistic scenarios, dose factors due to 60Co contaminated steel, used in consumer products, cannot be approximated by standard exposure geometries…”
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PRESCILA: A NEW, LIGHTWEIGHT NEUTRON REM METER by Olsher, Richard H, Seagraves, David T, Eisele, Shawna L, Bjork, Christopher W, Martinez, William A, Romero, Leonard L, Mallett, Michael W, Duran, Michael A, Hurlbut, Charles R

“…ABSTRACT—Conventional neutron rem meters currently in use are based on 1960’s technology that relies on a large neutron moderator assembly surrounding a…”
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High-energy response of passive dosemeters in use at LANL by Olsher, Richard H., McLean, Thomas D., Mallett, Michael W., Romero, Leonard L., Devine, Robert T., Hoffman, Jeffrey M.

“…The high-energy neutron response of three passive dosemeters in use at the Los Alamos National Laboratory (LANL) has been investigated using metrology-grade…”
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Development of a portable high-energy neutron spectrometer by McLean, Thomas D., Olsher, Richard H., Devine, Robert T.

“…The design of a portable high-energy (20–800 MeV) neutron spectrometer based on CsI or BaF2 is described. The particle discrimination properties of these…”
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Evaluation of spectrum measurement devices for operational use by Devine, Robert T, Romero, Leonard L, Gray, Devin W, Seagraves, David T, Olsher, Richard H, Johnson, Jeff P

“…Several neutron spectrometers manufactured by Bubble Technology Industries (BTI) were tested and evaluated in a variety of neutron fields. Findings and…”
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PRESCILA: A NEW, LIGHTWEIGHT NEUTRON REM METER by Olsher, Richard H., Seagraves, David T., Eisele, Shawna L., Bjork, Christopher W., Martinez, William A., Romero, Leonard L., Mallett, Michael W., Duran, Michael A., Hurlbut, Charles R.

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Personal dose equivalent conversion coefficients for neutron fluence over the energy range of 20 to 250 MeV by Mclean, Thomas D, Justus, Alan L, Gadd, S Milan, Olsher, Richard H, Devine, Robert T

“…Monte Carlo simulations were performed to extend existing neutron personal dose equivalent fluence-to-dose conversion coefficients to an energy of 250 MeV…”
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CHELSI: Recent developments in the design and performance of a high-energy neutron spectrometer by McLean, Thomas D., Olsher, Richard H., Devine, Robert T., Romero, Leonard L., Fallu-Labruyere, Anthony, Grudberg, Peter, Tan, Hui, Chu, Yunxian

“…The intrinsic pulse shape discrimination properties of CsI(Tl) form the basis of a high-energy neutron (>20 MeV) spectrometer (CHELSI) currently being…”
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A real-time pulsed photon dosimeter by Brown, David, Olsher, Richard H., Eisen, Yosef, Rodriguez, Joseph F.

“…Radiation sources producing short pulses of photon radiation are now widespread. Such sources include electron and proton linear accelerators, betatrons,…”
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Performance testing of the Eberline RMS-II criticality accident monitor by Olsher, R H

“…The Plutonium Facility at Los Alamos uses Eberline RMS-II monitors as part of its criticality accident alarm system. The monitors are designed to accommodate a…”
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