Results 31 to 40 of about 1,543,124 (347)
A Cobalt Neutron-flux Integrator [PDF]
Health Physics, 1961 A fast-neutron detector, expected to be useful for health physies purposes, is described. The detector is a cobalt disk embedded in a cadmium- cased paraffin moderator. The Co/sup 60/ produced in a disk during irradiation is measured subsequently with a gamma -ray scintillation spectrometer to determine the integrated neutron exposure.
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Applied Radiation and Isotopes, 2019 The fast neutron spectrum was measured in an irradiation position adjacent to two 18F (fluorine-18) production targets at a medical cyclotron. The neutron spectrum was modeled using MCNP6 and experimentally determined using activation foils.
B. Jeffries +7 more
semanticscholar +1 more source
Seasonal and Lunar Month Periods Observed in Natural Neutron Flux at High Altitude [PDF]
Pure and Applied Geophysics, 2016 Air radon concentration measurement is useful for research on geophysical effects, but it is strongly sensitive to site geology and many geophysical and microclimatic processes such as wind, ventilation, air humidity and so on inducing very big ...
Y. Stenkin +16 more
semanticscholar +1 more source
Heliyon, 2021 The aim of this research was to investigate the relationship between the collimator aperture and fast-neutron flux, neutron-energy spectrum and absorbed dose rate.
A.M. Shehada +2 more
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Alexandria Engineering Journal, 2020 Many Instrumentation and Control (I&C) systems of Research reactors experience aging difficulties that necessitate optimizing operations and safety systems. Therefore, great attention paid to FPGA-based I&C use particularly in safety systems; this is due
Mjzoob I. Ibrahim +3 more
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Calculation of Thermal Neutron Diffusion Length in a Light Water Media using MCNP Code [PDF]
مجله علوم و فنون هستهای, 2023 One of the key parameters of neutron diffusing media is the thermal neutron diffusion length. The popular calculational method is founded on utilizing MCNP code and curve fitting of a mathematical function to the neutron flux distribution in the media ...
M. Arkani
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, 2020 Based on a strategic plan of TRIGA 2000 Bandung’s future operation, BATAN has already decided to implement an option to convert the fuel elements core of TRIGA 2000 from using the cylindrical type of elements produced by General Atomic to MTR plate type ...
Bahrum, E. S. (Epung) +7 more
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Impact of physical model error on state estimation for neutronics applications* [PDF]
ESAIM: Proceedings and Surveys, 2023 In this paper, we consider the inverse problem of state estimation of nuclear power fields in a power plant from a limited number of observations of the neutron flux. For this, we use the Parametrized Background Data Weak approach.
Taumhas Yonah Conjungo +4 more
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A large-scale magnetic field produced by a solar-like dynamo in binary neutron star mergers [PDF]
Nature Astronomy, 2023 The merger of two neutron stars launches a relativistic jet, which must be driven by a strong large-scale magnetic field. However, the magnetohydrodynamical mechanism required to build up this magnetic field remains uncertain.
K. Kiuchi +3 more
semanticscholar +1 more source
The Unit of Neutron Flux [PDF]
Nature, 1961 A unit of neutron flux, the chad, is defined as follows: 1 chad = 10/sup 1//sup 2/ n/cm/sup 2/ sec. The flux in most existing or contemplated power reactors lies in the range of lO/sup 1//sup 2/ to lO/sup 1//sup 3/ n/cm/sup 2/ sec, the flux in zero energy reactors is generally about 10/sup 9/ n/cm/sup 2/ sec, and that encountered in subcritical ...
I. S. McGILL, D. C. MENZIES, M. R. PRICE
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