Results 21 to 30 of about 170,377 (287)

System and process of thermal neutron flux producing by means of an accelerator base electron of 18 MeV

Eurasian Journal of Physics and Functional Materials, 2021
Neutrons are produced in accelerators by irradiating heavy targets with an electron or proton beam. Produced neutrons are of high energy. The purpose of our work is optimization the neutron flux by MCNP-6 code for production the thermal neutron flux ...
A. .. Didi, A. .. Dadouch, H. .. El Bekkour, O. .. Jai, F. -Z. Bouhal, M. .. Bencheikh   +5 more
doaj   +1 more source

MeV Neutron Production from Thermal Neutron Capture in {6}^Li Simulated with Geant4

, 2015
Various Li compounds are commonly used at neutron facilities as neutron absorbers. These compounds provide one of the highest ratios of neutron attenuation to $\gamma$-ray production. Unfortunately, the usage of these compounds can also give rise to fast
Bentley, Phillip M., Di Julio, Douglas D., Santoro, Valentina   +2 more
core   +1 more source

Observations by human subjects on radiation- induced light flashes in fast-neutron, X-ray, and positive-pion beams [PDF]

, 1970
Exposure of human subjects to fast neutron beam to determine cause of light flashes observed by astronauts on lunar ...
Budinger, T. F., Lyman, J. T., Tobias, C. A.   +2 more
core   +4 more sources

A high-density gamma white spots-Gaussian mixture noise removal method for neutron images denoising based on Swin Transformer UNet and Monte Carlo calculation

Nuclear Engineering and Technology
During fast neutron imaging, besides the dark current noise and readout noise of the CCD camera, the main noise in fast neutron imaging comes from high-energy gamma rays generated by neutron nuclear reactions in and around the experimental setup.
Di Zhang, Guomin Sun, Zihui Yang, Jie Yu
doaj   +1 more source

A re-sequencing based assessment of genomic heterogeneity and fast neutron-induced deletions in a common bean cultivar

Frontiers in Plant Science, 2013
A small fast neutron mutant population has been established from Phaseolus vulgaris cv. Red Hawk. We leveraged the available P. vulgaris genome sequence and high throughput next generation DNA sequencing to examine the genomic structure of five ...
Jamie A. O'Rourke, Jamie A. O'Rourke, Luis P. Iniguez, Bruna eBucciarelli, Bruna eBucciarelli, Jeffrey eRoessler, Jeremy eSchmutz, Phillip E. McClean, Scott A. Jackson, Georgina eHernandez, Michelle A. Graham, Robert M. Stupar, Carroll P. Vance, Carroll P. Vance   +13 more
doaj   +1 more source

Preliminary investigations of Monte Carlo Simulations of neutron energy and LET spectra for fast neutron therapy facilities

, 2012
No fast neutron therapy facility has been built with optimized beam quality based on a thorough understanding of the neutron spectrum and its resulting biological effectiveness.
Allison, T.K. Kroc
core   +1 more source

Neutron spectrometer for fast nuclear reactors [PDF]

, 2015
In this paper we describe the development and first tests of a neutron spectrometer designed for high flux environments, such as the ones found in fast nuclear reactors.
Angelone, M., Argiro, S., Caiffi, B., Cardarelli, R., Mila, G., Osipenko, M., Pillon, M., Pompili, F., Ricco, G., Ripani, M., Verona-Rinati, G.   +10 more
core   +2 more sources

Core Optimization for Extending the Graphite Irradiation Lifespan in a Small Modular Thorium-Based Molten Salt Reactor

Journal of Nuclear Engineering
The lifespan of core graphite under neutron irradiation in a commercial molten salt reactor (MSR) has an important influence on its economy. Flattening the fast neutron flux (≥0.05 MeV) distribution in the core is the main method to extend the graphite ...
Xuzhong Kang, Guifeng Zhu, Jianhui Wu, Rui Yan, Yang Zou, Yafen Liu   +5 more
doaj   +1 more source

Recent Developments in Nuclear Data Measurement capabilities at the Gaerttner LINAC Center at RPI

EPJ Web of Conferences, 2016
The Gaerttner LINAC Center at RPI uses a 60 MeV electron linear accelerator to produce short pulses of neutrons with duration of 5-5000 ns. The main research thrust at the Center is nuclear data for nuclear reactors and criticality safety applications ...
Danon Y., Daskalakis A., McDermott B., Thompson N., Youmans A., Block R., Barry D., Epping B., Leinweber G., Rapp M., Donovan T.   +10 more
doaj   +1 more source

Bricks non-destructive simulation testing method utilizing neutron radiography facility based on a 7Li(p,n)7Be reaction

Nuclear Engineering and Technology
The evaluation of non-destructive neutron radiography (NR) for examining the internal composition of various structural materials, has been the focus of extensive research.
Jacob G. Fantidis, Athanasia Κ. Thomoglou, Maristella Ε. Voutetaki, Bassam Tayeh, George Nikolaou   +4 more
doaj   +1 more source