Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1088/0031-9155/21/6/012 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Optimal Neutron Spectrum Database for In-reactor Pu Production.
Adv Sci (Weinh)
January 2025
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610200, China.
Plutonium-238 (Pu) is a scarce heat-source radioisotope used in nuclear batteries, which is produced by in-reactor irradiation of Americium-241 (Am) or Neptunium-237 (Np). Optimizing the neutron spectrum can improve the production efficiency of Pu, but currently, it is still a lack of knowledge about the optimal neutron spectrum for Pu production. Genetic algorithms and burnup algorithms are combined to identify optimal neutron spectra for Pu production under various irradiation times and flux levels, and build an optimal neutron spectrum database, which answers the questions "What is the optimal neutron spectrum for Pu production?" and "What is the maximum efficiency for Pu production" once and for all.
View Article and Find Full Text PDFSpace radiation measured during first-ever commercial suborbital mission on Virgin Galactic SpaceShipTwo Unity on 29 June 2023.
Life Sci Space Res (Amst)
February 2025
National Research Council of Italy, Rome, Italy. Electronic address:
The paper presents the variations of space radiation (primary and secondary galactic cosmic rays (GCR) absorbed dose rate in silicon and flux) measured during the first-ever commercial suborbital flight of the Virgin Galactic (VG) SpaceShipTwo Unity on 29 June 2023. A Portable Dosimeter-Spectrometer Liulin-CNR-VG is used. It is developed in the Space Research and Technology Institute, Bulgarian Academy of Sciences (SRTI-BAS) under a scientific contract with National Research Council of Italy (CNR), Italy.
View Article and Find Full Text PDFFirst Observation of a Nuclear Recoil Peak at (100eV) with Crab: A Potential New Calibration Standard for Cryogenic Detectors.
J Low Temp Phys
December 2024
Physik-Department, Technische Universität München, Garching, Germany.
Any experiment aiming to measure rare events, like Coherent Elastic neutrino-Nucleus Scattering (CE NS) or hypothetical Dark Matter scattering, via nuclear recoils in cryogenic detectors relies crucially on a precise detector calibration at sub-keV energies. The Crab collaboration developed a new calibration technique based on the capture of thermal neutrons inside the target crystal. Together with the Nucleus experiment, first measurements with a moderated Cf neutron source and a cryogenic detector were taken.
View Article and Find Full Text PDFMulti-layer shielding optimization of a high activity Am-Be mixed field irradiation facility.
Appl Radiat Isot
March 2025
Experimental Nuclear Physics Department, Nuclear Research Centre, Egyptian Atomic Energy Authority, Egypt; Cyclotron Facility, Egyptian Atomic Energy Authority, Egypt.
Neutron and gamma-ray shielding design for a 30Ci (1.11TBq) Am-Be irradiation facility is studied using MCNP5 Monte Carlo simulation code. The study focuses on the optimization of the shielding layers of the previously planned neutron irradiation facility.
View Article and Find Full Text PDFA feasibility study on a small electron linear accelerator-based beam shaping assembly for boron neutron capture therapy.
Appl Radiat Isot
March 2025
Kyoto University Graduate School of Engineering, Kyoto Daigaku-katsura, Nishikyo-ku, Kyoto, 615-8530, Japan.
We aimed to explore the possibility of realizing a beam shaping assembly (BSA) driven by a 15-kW beam of 33-MeV electrons of an electron linear accelerator (LINAC) when a boronophenylalanine is adopted as a boron carrier. Simulation calculations were performed to design two types of BSAs driven by the small LINAC. The one was an experimental BSA, and the other was a high-performance BSA.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!