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We report on the measurements of the fluxes and spectra of the environmental fast neutron background at the China Jinping Underground Laboratory (CJPL) with a rock overburden of about 6700 meters water equivalent, using a liquid…

Instrumentation and Detectors · Physics 2018-03-07 Qiang Du , Shin-Ted Lin , Shu-Kui Liu , Chang-Jian Tang , Li Wang , Wei-Wei Wei , Henry T. Wong , Hao-Yang Xing , Qian Yue , Jing-Jun Zhu

The study of the neutron response and n-gamma discrimination for small (18x26x8) mm3 liquid scintillator BC501A (Bicron) detector was carried out by digital charge comparison method. Three ranges of neutron energies were used: uniform…

Nuclear Experiment · Physics 2016-08-16 J. Černý , Z. Doležal , M. P. Ivanov , E. S. Kuzmin , J. Švejda , I. Wilhelm

The Fusion Evaluated Nuclear Data Library (FENDL) is a comprehensive and validated collection of nuclear cross section data coordinated by the International Atomic Energy Agency (IAEA) Nuclear Data Section (NDS). FENDL assembles the best…

High quality nuclear data is the most fundamental underpinning for all neutron metrology applications. This paper describes the release of version II of the International Reactor Dosimetry and Fusion File (IRDFF-II) that contains a…

Various neutron diagnostic tools are used in fusion reactors to evaluate different aspects of plasma performance, such as fusion power, power density, ion temperature, fast ion energy, and their spatial distributions. The stilbene…

Nuclear Experiment · Physics 2015-06-03 Seung Kyu Lee , Byoung-Hwi Kang , Gi-Dong Kim , Yong-Kyun Kim

We report on the experimental observation of beam-like neutron emission with peak flux of the order of 10^9 n/sr, from light nuclei reactions in a pitcher-catcher scenario, by employing MeV ions driven by high power laser. The spatial…

The demand for new thermal neutron detectors as an alternative to 3He tubes in research, industrial, safety and homeland security applications, is growing. These needs have triggered research and development activities about new generations…

Instrumentation and Detectors · Physics 2018-01-09 Paolo Finocchiaro , Luigi Cosentino , Sergio Lo Meo , Ralf Nolte , Desiree Radeck

The Pu-239 fission chambers are widely used to measure fission spectrum neutron flux due to a flat response to fast neutrons. However, in the mean time the resonance and thermal neutrons can cause a significant influence on the measurement…

Instrumentation and Detectors · Physics 2015-06-19 Lina zeng , Qiang Wang , Lingli Song , Chun Zheng

We report on the measurement of neutron energy spectra at the newly established Yemi Underground Laboratory (Yemilab) in the Republic of Korea, designed to host dark matter and rare-event search experiments. A high-sensitivity neutron…

We report a direct detection of muon-induced high energy neutrons with a 12-liter neutron detector fabricated with EJ-301 liquid scintillator operating at Soudan Mine for about two years. The detector response to energy from a few MeV up to…

Instrumentation and Detectors · Physics 2014-12-31 C. Zhang , D. -M. Mei

We report a novel neutron-detection approach employing an EJ-309 liquid scintillator surrounded by six 3He proportional counters. Tests were performed at the FRANZ facility of the Goethe-University Frankfurt using the 7Li(p,n0)7Be reaction,…

We exposed a prototype of the lead-scintillating fiber KLOE calorimeter to neutron beam of 21, 46 and 174 MeV at The Svedberg Laboratory, Uppsala, to study its neutron detection efficiency. This has been found larger than what expected…

Coincidence and time-of-flight measurement techniques are employed to tag fission neutrons emitted from a 252Cf source sealed on one side with a very thin layer of Au. The source is positioned within a gaseous 4He scintillator detector.…

The $^3$He(n,p) process is excellent for neutron detection between thermal and $\sim$4\,MeV because of the high cross section and near-complete energy transfer from the neutron to the proton. This process is typically used in gaseous forms…

Instrumentation and Detectors · Physics 2023-12-29 A. E. Sharbaugh , L. Jones , A. N. Villano

New evaluations for several actinoids of the third version of China Evaluated Nuclear Data Library (CENDL-3.1) have been completed during the period between 2000 and 2005. The evaluations are for all neutron induced reactions with Uranium,…

Nuclear Experiment · Physics 2011-09-23 Chen Guo-Chang , Cao Wen-Tian , Yu Bao-Sheng , Tang Guo-You , Shi Zhao-Min , Tao Xi

The response of a scintillation detector with a cylindrical 1.5-inch LaBr3:Ce crystal to incident neutrons has been measured in the energy range En = 2-12 MeV. Neutrons were produced by proton irradiation of a Li target at Ep = 5-14.6 MeV…

We have experimentally characterized the light-output response of a deuterated trans-stilbene (stilbene-d12) crystal to quasi-monoenergetic neutrons in the 0.8 to 4.4 MeV energy range. These data allowed us to perform neutron spectroscopy…

Instrumentation and Detectors · Physics 2021-11-10 N. Gaughan , J. Zhou , F. D. Becchetti , R. O. Torres-Isea , M. Febbraro , N. Zaitseva , A. Di Fulvio

The organic liquid scintillator used in the LVD experiment (INFN Gran Sasso National Laboratory) has been exposed to an Am-Be neutron source to measure the light response function for neutron energies in the region from about 4 to 11 MeV. A…

Instrumentation and Detectors · Physics 2014-10-22 G. Bruno

The 235U(n,f) cross section was measured in a wide energy range (25 meV - 170 keV) at the n_TOF facility at CERN, relative to 6Li(n,t) and 10B(n,alpha) standard reactions, with high resolution and accuracy, with a setup based on a stack of…

Nuclear Experiment · Physics 2022-02-14 TOF collaboration , M. Mastromarco , S. Amaducci , N. Colonna , P. Finocchiaro , L. Cosentino , O. Aberle , J. Andrzejewski , L. Audouin , M. Bacak , J. Balibrea , M. Barbagallo , F. Bečvář , E. Berthoumieux , J. Billowes , D. Bosnar , A. Brown , M. Caamaño , F. Calviño , M. Calviani , D. Cano-Ott , R. Cardella , A. Casanovas , F. Cerutti , Y. H. Chen , E. Chiaveri , G. Cortés , M. A. Cortés-Giraldo , L. A. Damone , M. Diakaki , C. Domingo-Pardo , R. Dressler , E. Dupont , I. Durán , B. Fernández-Domínguez , A. Ferrari , P. Ferreira , V. Furman , K. Göbel , A. R. García , A. Gawlik , S. Gilardoni , T. Glodariu , I. F. Gonçalves , E. González-Romero , E. Griesmayer , C. Guerrero , F. Gunsing , H. Harada , S. Heinitz , J. Heyse , D. G. Jenkins , E. Jericha , F. Käppeler , Y. Kadi , A. Kalamara , P. Kavrigin , A. Kimura , N. Kivel , I. Knapova , M. Kokkoris , M. Krtička , D. Kurtulgil , E. Leal-Cidoncha , C. Lederer , H. Leeb , J. Lerendegui-Marco , S. Lo Meo , S. J. Lonsdale , D. Macina , A. Manna , J. Marganiec , T. Martínez , A. Masi , C. Massimi , P. Mastinu , E. A. Maugeri , A. Mazzone , E. Mendoza , A. Mengoni , P. M. Milazzo , F. Mingrone , A. Musumarra , A. Negret , R. Nolte , A. Oprea , N. Patronis , A. Pavlik , J. Perkowski , I. Porras , J. Praena , J. M. Quesada , D. Radeck , T. Rauscher , R. Reifarth , C. Rubbia , J. A. Ryan , M. Sabaté-Gilarte , A. Saxena , P. Schillebeeckx , D. Schumann , P. Sedyshev , A. G. Smith , N. V. Sosnin , A. Stamatopoulos , G. Tagliente , J. L. Tain , A. Tarifeño-Saldivia , L. Tassan-Got , S. Valenta , G. Vannini , V. Variale , P. Vaz , A. Ventura , V. Vlachoudis , R. Vlastou , A. Wallner , S. Warren , C. Weiss , P. J. Woods , T. Wright , P. Žugec

The principle of operation, design, registration system and main characteristics of a fast neutrons spectrometer are described. The spectrometer is intended for direct measurements of ultra low fluxes of fast neutrons. It is sensitive to…

Instrumentation and Detectors · Physics 2009-09-25 J. N. Abdurashitov , V. N. Gavrin , A. V. Kalikhov , A. A. Shikhin , V. E. Yants , O. S. Zaborsky