منابع مشابه
Investigation of neutron flux by thermoluminescence dosimeters in the neutron-gamma mixed field
Introduction: Neutrons have many applications in various fields, such as medicine. The important application of neutron in medical science is in Boron Neutron Capture Therapy (BNCT). Because of this, determination of neutron dose and flux is critical for the health maintaining of workers and patients exposed to this beam. The neutron radioisotope sources produce gamma rays in ...
متن کاملDIRECT MEASUREMENT OF ko FOR MONITOR NEUTRON ACTIVATION ANALYSIS
This paper inlroduces the thermal column or the cold neutron guide beam of the 20 MW NBSR at the National Institute of Standards and Technology as a direct k o measurement facility. Measurement of k o at this facility not only produces accurate values, but avoids the additional correction factors needed in other measurement methods. The ko of Sb, Ag and Cr with respect to Sc as monitor have bee...
متن کاملDirect Measurement of Neutron - Star Recoil in the Oxygen - Rich
A sequence of three Chandra X-ray Observatory High Resolution Camera images taken over a span of five years reveals arc-second-scale displacement of RX J0822–4300, the stellar remnant (presumably a neutron star) near the center of the Puppis A supernova remnant. We measure its proper motion to be 0.159 ± 0.017 arcsec yr −1 toward the west-southwest. At a distance of 2 kpc, this corresponds to a...
متن کاملDevelopment of a Direct-Measurement Thin-Film Heat Flux Array
A new thin film heat flux array (HFA) was designed and constructed using a series of nickel/copper thermocouples deposited onto a thin Kapton® polyimide film. The HFA is capable of withstanding temperatures up to 300°C and produces signals of 40 μV/(W/cm). As a result of its thin film construction, the HFA is able to resolve heat flux signals as fast as 32 ms. Calibrations were completed to det...
متن کاملNeutron Flux Underground Revisited
The neutron flux induced by radioactivity at the Gran Sasso underground laboratory is revisited. We have performed calculations and Monte Carlo simulations; the results offer an independent check to the available experimental data reported by different authors, which vary rather widely. This study gives detailed information on the expected spectrum and on the variability of the neutron flux due...
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ژورنال
عنوان ژورنال: Journal of Nuclear Science and Technology
سال: 1966
ISSN: 0022-3131,1881-1248
DOI: 10.1080/18811248.1966.9732280