Results 21 to 30 of about 260,898 (277)

Development of a powerful UCN source at PNPI's WWR-M reactor [PDF]

EPJ Web of Conferences, 2019
The WWR-M reactor at PNPI is planned to be equipped with a high-flux source for ultracold neutrons (UCNs). The method of UCN production is based on neutron conversion in superfluid helium, exploiting the particular qualities of that quantum liquid.
Serebrov Anatolii, Liamkin Vitalii, Fomin Aleksey, Pusenkov Valeriy, Keshishev Konstantin, Boldarev Sergey, Prudnikov Dmitriy, Oprev Artem, Samodurov Oleg, Koptyuhov Artem, Ilatovskiy Vladimir   +10 more
doaj   +1 more source

Bias Effects on g- and s-Factors in Westcott Convention

Applied Sciences, 2021
For accuracy improvement of neutron activation analysis and neutron capture cross sections, bias effects are investigated on g- and s-factors in the Westcott convention.
Hideo Harada
doaj   +1 more source

ROSAT HRI Observations of the Crab Pulsar: An Improved Temperature upper limit for PSR 0531+21 [PDF]

, 1995
ROSAT HRI observations have been used to determine an upper limit of the Crab pulsar surface temperature from the off-pulse count rate. For a neutron star mass of 1.4 \Mo and a radius of 10 km as well as the standard distance and interstellar column ...
A Toor, B Aschenbach, FR Harnden, H Müther, H Umeda, K Nomoto, K Riper Van, LP David, M Prakash, MA Alpar, N Chong, RB Wiringa, RS Wolff, W Becker, W Becker, W Becker   +15 more
core   +2 more sources

Research on Neutronics Safety Parameters of the AP1000 Nuclear Reactor under Different Conditions

Energies, 2023
Changes in temperature during reactor operation may cause changes in physical parameters, leading to core overheating and accidents. It is essential to analyze and assess the safety parameters of the core under different operating conditions.
Xinyi Niu, Jianquan Liu, Zenghao Dong, Jie Wei, Wenlong Zhou   +4 more
doaj   +1 more source

Impact of Temperature on Neutron Irradiation Failure-in-Time of Silicon and Silicon Carbide Power MOSFETs

Radiation, 2023
Accelerated neutron tests on silicon (Si) and silicon carbide (SiC) power MOSFETs at different temperatures and drain bias voltages were performed at the ChipIr facility (Didcot, UK).
Fabio Principato, Carlo Cazzaniga, Maria Kastriotou, Christopher Frost, Leonardo Abbene, Francesco Pintacuda   +5 more
doaj   +1 more source

Radiation of Neutron Stars Produced by Superfluid Core [PDF]

, 2002
We find that neutron star interior is transparent for collisionless electron sound, the same way as it is transparent for neutrinos. In the presence of magnetic field the electron sound is coupled with electromagnetic radiation and form the fast ...
Amundsen L., Amundsen L., Anatoly A. Svidzinsky, Becker W., Blandford R. D., Golden A., Gottfried K., Kaner E. A., Keen B. E., Kurt V. G., Mignani R. P., Nasuti F. P., Potekhin A. Y., Shearer A., Shibanov Y. A., Urpin V. A., Wiebicke H.-J., Yakovlev D. G.   +17 more
core   +2 more sources

Stacking Fault Energy Analyses of Additively Manufactured Stainless Steel 316L and CrCoNi Medium Entropy Alloy Using In Situ Neutron Diffraction

Scientific Reports, 2020
Stacking fault energies (SFE) were determined in additively manufactured (AM) stainless steel (SS 316 L) and equiatomic CrCoNi medium-entropy alloys. AM specimens were fabricated via directed energy deposition and tensile loaded at room temperature.
W. Woo, J. S. Jeong, D.-K. Kim, C. M. Lee, S.-H. Choi, J.-Y. Suh, S. Y. Lee, S. Harjo, T. Kawasaki   +8 more
doaj   +1 more source

Cooling of the Cassiopeia A neutron star and the effect of diffusive nuclear burning

, 2019
The study of how neutron stars cool over time can provide invaluable insights into fundamental physics such as the nuclear equation of state and superconductivity and superfluidity.
Beznogov, Mikhail, Chang, Philip, Heinke, Craig O., Ho, Wynn C. G., Page, Dany, Patnaude, Daniel J., Wijngaarden, M. J. P.   +6 more
core   +1 more source

Rapidly solidified highly alloyed Ni-based superalloy powders for multi-application: The faster the cooling, the softer?

Materials & Design
An investigation was conducted on gas atomised (GA) highly alloyed Ni-based superalloy powders utilised in diverse processes including additive manufacturing (AM), wide gap brazing (WGB) and hot isostatic pressing (HIP).
Liang Zheng, Tung Lik Lee, Dominik Daisenberger, Michael J Gorley, Zhou Li, Guoqing Zhang   +5 more
doaj   +1 more source

Time-Resolved Neutron Bragg-Edge Imaging: A Case Study by Observing Martensitic Phase Formation in Low Temperature Transformation (LTT) Steel during GTAW

Applied Sciences, 2021
Polychromatic and wavelength-selective neutron transmission radiography were applied during bead-on-plate welding on 5 mm thick sheets on the face side of martensitic low transformation temperature (LTT) steel plates using gas tungsten arc welding (GTAW).
Axel Griesche, Beate Pfretzschner, Ugur Alp Taparli, Nikolay Kardjilov   +3 more
doaj   +1 more source