Results 11 to 20 of about 10,083 (281)

Neutron-mirror neutron mixing and neutron stars [PDF]

open access: yesThe European Physical Journal C, 2021
AbstractThe oscillation of neutron n into mirror neutron $$n'$$ n ′ , its mass degenerate partner from dark mirror sector, can gradually transform the neutron stars into the mixed stars consisting in part of mirror dark matter. In quark stars $$n-n'$$
Berezhiani Z.   +3 more
openaire   +3 more sources

Neutron–Mirror-Neutron Oscillation and Neutron Star Cooling

open access: yesPhysical Review Letters, 2022
It was pointed out in a recent paper that the observed cooling rate of old, cold neutron stars (NS) can provide an upper limit on the transition rate of neutron to mirror neutron ($n-n'$). This limit is so stringent that it would preclude any discovery of $n \to n'$ oscillation in the current round of terrestrial searches for the process.
Itzhak Goldman   +3 more
openaire   +3 more sources

Neutron–neutron fusion [PDF]

open access: yesPhysics Letters B, 2006
14 pages, 4 figures, minor correction, accepted for publication in Phys.
Ando, Shung-ichi, Kubodera, Kuniharu
openaire   +2 more sources

A MLEM-TV-MRP Algorithm for Fast Neutron Computed Tomography Reconstruction of High Statistical Noise and Sparse Sampling

open access: yesIEEE Access, 2020
Fast neutron computed tomography (FNCT) generally needs a longer measurement time because of low source strength and low detection efficiency. In order to reduce measurement time, methods of reducing single measurement time and the numbers of projection ...
Sangang Li   +5 more
doaj   +1 more source

Verification and application of SuperMC3.3 to lead-bismuth-cooled fast reactor [PDF]

open access: yesNuclear Technology and Radiation Protection, 2019
Lead-cooled fast reactors have multilayered designs and large internal temperature differences, which cause challenges in simulating reactor physics. SuperMC, a large-scale integrated software system for neutronics design, is inherently able to address ...
Ding Hui   +4 more
doaj   +1 more source

Structural seismic characteristics assessment of LMFR fuel assembly hexagonal wrapper over operational temperature range [PDF]

open access: yesNuclear Technology and Radiation Protection, 2019
In this study, the structural integrity of liquid metal fast reactor fuel assembly has been established for different parameters considering the optimum fuel design.
Khizer M.   +4 more
doaj   +1 more source

PROTO-NEUTRON AND NEUTRON STARS [PDF]

open access: yesAstronomy and Relativistic Astrophysics, 2010
Prepared for International Workshop on Astronomy and Relativistic Astrophysics (IWARA 2007), Joao Pessoa, Brazil, 3-6 Oct ...
Dexheimer, V., Schramm, S., Stoecker, H.
openaire   +2 more sources

Design of reduced size long counter with flat response function from few keV to 20 MeV [PDF]

open access: yesNuclear Technology and Radiation Protection, 2016
In this study, a reduced size neutron long counter with improved response function was designed using SuperMC simulation code. The main parts of the reduced size long counter are 3He proportional counter, cylindrical moderators made of ...
Mazunga Mohamed   +3 more
doaj   +1 more source

Specifications for a coupled neutronics thermal-hydraulics SFR test case [PDF]

open access: yes, 2017
Coupling neutronics/thermal-hydraulics calculations for the design of nuclear reactors is a growing trend in the scientific community. This approach allows to properly represent the mutual feedbacks between the neutronic distribution and the thermal ...
TASSONE, ALESSANDRO
core   +1 more source

Core design optimization for a novel heavy water moderated molten salt reactor

open access: yesHe jishu, 2021
BackgroundHeavy water moderated molten salt reactor (HWMSR) adopts heavy water as moderator and heavy metal elements dissolved in fluoride salt as the fuel, which has high neutron economy. But large temperature difference of fuel salt outlet will lead to
WU Jianhui   +6 more
doaj   +1 more source

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