Results 71 to 80 of about 1,538,400 (198)

Les installations de l’IRSN dédiées à la métrologie des neutrons

, 2006
La responsabilité des références françaises pour la fluence et les grandeurs dosimétriques neutroniques est du ressort du laboratoire de métrologie et de dosimétrie des neutrons de l’Institut de radioprotection et de sûreté nucléaire (IRSN).
Pochat, J.L., V. Gressier, J. L. Pochat, Gressier, V.   +3 more
core   +1 more source

Near‐Earth Cosmic Ray Modulation Index ϕ and Neutron Monitor Cutoff Rigidities at Hourly Cadence: Toward an Improved Monitoring of Solar‐Terrestrial Radiation Environment, Space Weather, and Space Climate

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract Cosmic rays (CRs) are energetic particles originating from galactic and extragalactic sources. When arriving into the solar system and the Sun's heliosphere, they are diverted and modulated by the magnetic activity of the Sun. This modulation can be quantified by the modulation parameter ϕ $\phi $ determined with the Force‐field approximation (
Pauli Väisänen, Nicholas Larsen, Sergey Koldobskiy, Markus Similä, David Pelosi, Miguel Orcinha   +5 more
wiley   +1 more source

In-core thermal and fast neutron measurements with 4H-SiC P+N junction diodes in the JSI TRIGA Mark II research reactor

EPJ Nuclear Sciences & Technologies
Accurate online in-core parameter measurements, such as neutron and photon fluxes and nuclear heating rates, are essential for fusion and fission applications.
Valero Valentin, Ottaviani Laurent, Lyoussi Abdallah, Destouches Christophe, Radulović Vladimir, Snoj Luka, Volte Adrien, Carette Michel, Reynard-Carette Christelle   +8 more
doaj   +1 more source

Report on TESCA irradiation of optical sensors and tests of glasses [PDF]

EPJ Web of Conferences
The TESCA irradiation campaign, conducted from November 16 to December 17, 2023 (one reactor operating cycle) in the SCK•CEN BR2 research reactor, enabled testing of optical sensors at different development stages, under intense radiation: fast neutron ...
Cheymol Guy, Agoyan Marion, Ladaci Ayoub, Martin Florence, Destouches Christophe   +4 more
doaj   +1 more source

MSGC Test with Fast Neutrons

, 1998
Results are presented from the exposure of a CMS performance prototype MSGC to a fast neutrons beam having an average energy of 20 MeV and an intensity of 7*10^6 neutrons/mm2/s.
Defontaines, Francis, Van Lancker, Luc, Zhukov, Valery, Bernier, Kim, Daubie, Evelyne, Grégoire, Ghislain, Van Doninck, Walter   +6 more
core  

Annealing of Oxygen-Related Frenkel Defects in Corundum Single Crystals Irradiated with Energetic Xenon Ions

Crystals
The recovery of radiation damage induced by 231-MeV xenon ions with varying fluence (from 5 × 1011 to 2 × 1014 cm−2) in α-Al2O3 (corundum) single crystals has been studied by means of isochronal thermal annealing of radiation-induced optical absorption ...
Kotomin A. Eugene, Ruslan Assylbayev, Guldar Baubekova, Irina Kudryavtseva, Vladimir N. Kuzovkov, Alise Podelinska, Viktor Seeman, Evgeni Shablonin, Aleksandr Lushchik   +8 more
doaj   +1 more source

Cross Section Measurement Method for (n,α) Reaction of Gas Sample Based on Combination of Experiment and Simulation

Yuanzineng kexue jishu, 2022
A method for measuring (n,α) reaction cross sections of the gas sample induced by fast neutrons using a gridded ionization chamber (GIC) was established. There are several advantages using the GIC to measure gas samples.
HU Yiwei;CUI Zengqi;LIU Jie;BAI Haofan;XIA Cong;JIANG Haoyu;CHEN Jinxiang;ZHANG Guohui
doaj  

Framework for Decision Making in the Field of Environment and Health [PDF]

, 2012
Zie ook "Nuchter omgaan met risico's" 251701047In mei 2002 hebben de ministeries van VROM en VWS het Actieprogramma Gezondheid en Milieu aan de Tweede Kamer gepresenteerd.
Fast T, Bruggen M van
core  

Epithermal neutron activation dosimetry–(n, γ) reactions under boron-based filters

Scientific Reports
Neutron activation dosimetry is the primary method for the determination of the neutron flux or fluence, and in general, it is sensitive to the thermal and resonance energy ranges (radiative capture reactions– $$(n,\gamma )$$ ( n , γ ) reactions) and the
Vladimir Radulović, Nicolas Thiollay, Hubert Carcreff, Anže Pungerčič, Klemen Ambrožič, Christophe Destouches, Andrej Trkov   +6 more
doaj   +1 more source

Optimization design of the collimator for fast neutron radiography system based on 600 kV Cockcroft-Walton accelerator

Nuclear Engineering and Technology
Fast neutron radiography (FNR) is a powerful non-destructive testing technique, particularly suitable for inspecting large and high-density objects. As a core component of FNR systems, the collimator critically determines the quality of the radiographic ...
Wangtao Yu, Peng Xu, Jie Bao, Man Zhou, Yu Wang, Weiming Li, Yuxin Lei   +6 more
doaj   +1 more source