Zobrazeno 1 - 10
of 17
pro vyhledávání: '"R. T. Devine"'
Publikováno v:
Radiation Protection Dosimetry. 138:199-204
Monte Carlo simulations were performed to extend existing neutron personal dose equivalent fluence-to-dose conversion coefficients to an energy of 250 MeV. Presently, conversion coefficients, H(p,slab)(10,alpha)/Phi, are given by ICRP-74 and ICRU-57
Autor:
Thomas D. McLean, R. T. Devine, Leonard L. Romero, Richard H. Olsher, P. Grudberg, A. Fallu-Labruyere, L. H. Miles
Publikováno v:
Radiation Protection Dosimetry. 126:223-228
CHELSI is a CsI-based portable spectrometer being developed at Los Alamos National Laboratory for use in high-energy neutron fields. Based on the inherent pulse shape discrimination properties of CsI(Tl), the instrument flags charged particle events
Autor:
Yunxian Chu, Peter M. Grudberg, Hui Tan, Leonard L. Romero, R. T. Devine, Richard H. Olsher, A. Fallu-Labruyere, Thomas D. McLean
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 562:793-796
The intrinsic pulse shape discrimination properties of CsI(Tl) form the basis of a high-energy neutron (>20 MeV) spectrometer (CHELSI) currently being developed at LANL that shows promise in satisfying the requirements of an ideal survey meter; light
Publikováno v:
Radiation Protection Dosimetry. 120:466-469
The personnel dosimetry operations team at the Los Alamos National Laboratory (LANL) has accepted the laser illuminated track etch scattering (LITES) dosemeter reader into its suite of radiation dose measurement instruments. The LITES instrument tran
Autor:
Richard H. Olsher, Jeffrey M. Hoffman, R. T. Devine, Thomas D. McLean, Leonard L. Romero, David T. Seagraves, Michael W. Mallett, S. L. Eisele, R. O. Murphy
Publikováno v:
Radiation Protection Dosimetry. 110:549-553
Initial calibration of a multisphere spectroscopy system has been completed at Los Alamos National Laboratory using four standard calibration scenarios. Spectrum unfolding was performed using three methods of constructing the default spectrum: simple
Autor:
R. T. Devine
Publikováno v:
Radiation Protection Dosimetry. 110:491-495
In the application of criticality accident dosemeters the cross sections and fluence-to-dose conversion factors have to be computed. The cross section and fluence-to-dose conversion factor for the thermal and epi-thermal contributions to neutron dose
Publikováno v:
Radiation Protection Dosimetry. 110:219-222
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 scintillators allow the light-ion spallation products (p, d, t and alpha) from neutron interacti
Autor:
Devin W. Gray, David T. Seagraves, Leonard L. Romero, Jeff P Johnson, R. T. Devine, Richard H. Olsher
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 476:416-422
Several neutron spectrometers manufactured by Bubble Technology Industries (BTI) were tested and evaluated in a variety of neutron fields. Findings and conclusions are presented for the following BTI instruments: a modification of the Rotational Spec
Publikováno v:
Radiation Protection Dosimetry. 101:43-45
Los Alamos National Labs (LANL) has developed an etched track foil (CR-39) reader for neutron dose between 0 and 50.0 mSv. Currently, the US Department of Energy mandates general employee annual exposure not to exceed 50.0 mSv (5 rem). At LANL, due t
Autor:
Michael W. Mallett, R. T. Devine, Jeffrey M. Hoffman, Leonard L. Romero, Richard H. Olsher, Thomas D. McLean
Publikováno v:
Radiation protection dosimetry. 126(1-4)
The high-energy neutron response of three passive dosemeters in use at the Los Alamos National Laboratory (LANL) has been investigated using metrology-grade fields. The dosemeters include the LANL Model 8823 TLD badge and the LANL PN3 track etch devi