نتایج جستجو برای: neutron detection

تعداد نتایج: 609986  

Journal: :InfoMat 2022

Sensitive and fast detection of neutrons gamma rays is vital for homeland security, high-energy physics, proton therapy. Fast-neutron detectors rely on light organic scintillators, γ-ray use heavy inorganic scintillators semiconductors. Efficient mixed-field using a single material highly challenging due to their contradictory requirements. Here we report hybrid perovskites (C8H12N)2Pb(Br1−xClx...

2017
Nina Hong John Mullins Keith Foreman Shireen Adenwalla

Neutron detection in thick boron carbide(BC)/n-type Si heterojunction diodes shows a threefold increase in efficiency with applied bias and longer time constants. The improved efficiencies resulting from long time constants have been conclusively linked to the much longer charge collection times in the BC layer. Neutron detection signals from both the p-type BC layer and the n-type Si side of t...

2013
M. R. Fitzsimmons Ivan K. Schuller

The novel properties of materials produced using nanoscale manufacturing processes often arise from interactions across interfaces between dissimilar materials. Thus, to characterize the structure and magnetism of nanoscale materials demands tools with interface specificity. Neutron scattering has long been known to provide unique and quantitative information about nuclear and magnetic structur...

Journal: :Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 2015

2013
Tom Burr Michael S. Hamada Kary Myers Nicholas Hengartner Richard Picard

Currently deployed passive gamma and neutron detectors screen for illicit nuclear material. Archived data can help evaluate special nuclear material detection probabilities and investigate several related issues, including (1) nuisance gamma alarms arising from naturally occurring radiation, (2) the impact of drifting neutron and gamma background rates, and (3) radioisotope identification perfo...

Journal: :Physical review letters 2009
J Lachniet A Afanasev H Arenhövel W K Brooks G P Gilfoyle D Higinbotham S Jeschonnek B Quinn M F Vineyard G Adams K P Adhikari M J Amaryan M Anghinolfi B Asavapibhop G Asryan H Avakian H Bagdasaryan N Baillie J P Ball N A Baltzell S Barrow V Batourine M Battaglieri K Beard I Bedlinskiy M Bektasoglu M Bellis N Benmouna B L Berman A S Biselli B E Bonner C Bookwalter S Bouchigny S Boiarinov R Bradford D Branford W J Briscoe S Bültmann V D Burkert J R Calarco S L Careccia D S Carman L Casey L Cheng P L Cole A Coleman P Collins D Cords P Corvisiero D Crabb V Crede J P Cummings D Dale A Daniel N Dashyan R De Masi R De Vita E De Sanctis P V Degtyarenko H Denizli L Dennis A Deur S Dhamija K V Dharmawardane K S Dhuga R Dickson C Djalali G E Dodge D Doughty P Dragovitsch M Dugger S Dytman O P Dzyubak H Egiyan K S Egiyan L El Fassi L Elouadrhiri A Empl P Eugenio R Fatemi G Fedotov R Fersch R J Feuerbach T A Forest A Fradi M Y Gabrielyan M Garçon G Gavalian N Gevorgyan K L Giovanetti F X Girod J T Goetz W Gohn E Golovatch R W Gothe L Graham K A Griffioen M Guidal M Guillo N Guler L Guo V Gyurjyan C Hadjidakis K Hafidi H Hakobyan C Hanretty J Hardie N Hassall D Heddle F W Hersman K Hicks I Hleiqawi M Holtrop J Hu M Huertas C E Hyde-Wright Y Ilieva D G Ireland B S Ishkhanov E L Isupov M M Ito D Jenkins H S Jo J R Johnstone K Joo H G Juengst T Kageya N Kalantarians D Keller J D Kellie M Khandaker P Khetarpal K Y Kim K Kim W Kim A Klein F J Klein M Klusman P Konczykowski M Kossov L H Kramer V Kubarovsky J Kuhn S E Kuhn S V Kuleshov V Kuznetsov J M Laget J Langheinrich D Lawrence A C S Lima K Livingston M Lowry H Y Lu K Lukashin M Maccormick S Malace J J Manak N Markov P Mattione S McAleer M E McCracken B McKinnon J W C McNabb B A Mecking M D Mestayer C A Meyer T Mibe K Mikhailov T Mineeva R Minehart M Mirazita R Miskimen V Mokeev B Moreno K Moriya S A Morrow M Moteabbed J Mueller E Munevar G S Mutchler P Nadel-Turonski R Nasseripour S Niccolai G Niculescu I Niculescu B B Niczyporuk M R Niroula R A Niyazov M Nozar G V O'Rielly M Osipenko A I Ostrovidov K Park S Park E Pasyuk C Paterson S Anefalos Pereira S A Philips J Pierce N Pivnyuk D Pocanic O Pogorelko E Polli I Popa S Pozdniakov B M Preedom J W Price Y Prok D Protopopescu L M Qin B A Raue G Riccardi G Ricco M Ripani B G Ritchie G Rosner P Rossi D Rowntree P D Rubin F Sabatié M S Saini J Salamanca C Salgado A Sandorfi J P Santoro V Sapunenko D Schott R A Schumacher V S Serov Y G Sharabian D Sharov J Shaw N V Shvedunov A V Skabelin E S Smith L C Smith D I Sober D Sokhan A Starostin A Stavinsky S Stepanyan S S Stepanyan B E Stokes P Stoler K A Stopani I I Strakovsky S Strauch R Suleiman M Taiuti S Taylor D J Tedeschi R Thompson A Tkabladze S Tkachenko M Ungaro A V Vlassov D P Watts X Wei L B Weinstein D P Weygand M Williams E Wolin M H Wood A Yegneswaran J Yun M Yurov L Zana J Zhang B Zhao Z W Zhao

The neutron elastic magnetic form factor was extracted from quasielastic electron scattering on deuterium over the range Q;{2}=1.0-4.8 GeV2 with the CLAS detector at Jefferson Lab. High precision was achieved with a ratio technique and a simultaneous in situ calibration of the neutron detection efficiency. Neutrons were detected with electromagnetic calorimeters and time-of-flight scintillators...

ژورنال: سنجش و ایمنی پرتو 2020

Neutron Generators (NG) are used as a neutron source for different applications. During recent years, major efforts are underway to develop a high yield compact NG. In this way, radiation protection aspects need to be considered during the operation of these high yield NGs. In this paper the neutron effective dose of a NG operator has been calculated using MCNPX Monte Carlo code. The results sh...

2012
K. KOGA T. YAMAMOTO

A new type of solar neutron detector (NEM) was launched by the space shuttle Endeavour on July 16th, 2009 and it began collecting data on August 25th, 2009 at the International Space Station (ISS). In this paper we introduce not only preliminary results obtained by the NEM-FIB detector but also a possible solar neutron detection in association with the M3.7 solar flare on March 7, 2011.

2011
Itay Presiado Jyotsana Lal Eugene Mamontov Alexander I. Kolesnikov Dan Huppert

Fast Proton Hopping Detection in Ice Ih by Quasi-Elastic Neutron Scattering Itay Presiado, Jyotsana Lal, Eugene Mamontov, Alexander I. Kolesnikov, and Dan Huppert* Raymond and Beverly Sackler Faculty of Exact Sciences, School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United ...

2009
C. Guerrero H. Alvarez P. Assimakopoulos L. Audouin G. Badurek P. Baumann E. Berthoumieux F. Calviño N. Colonna A. Couture W. Dridi W. Furman F. Gramegna M. Igashira E. Jericha F. Käppeler H. Leeb M. Lozano S. Lukic P. Mastinu E. Mendoza A. Mengoni M. Mosconi F. Neves H. Oberhummer S. O’Brien J. Pancin C. Papadopoulos C. Paradela N. Patronis P. Pavlopoulos J. Praena C. Pretel J. Quesada T. Rauscher R. Reifarth C. Rubbia P. Rullhusen J. Salgado C. Santos L. Sarchiapone C. Stephan G. Tagliente L. Tassan-Got L. Tavora R. Terlizzi G. Vannini P. Vaz A. Ventura D. Villamarin M. C. Vicente R. Vlastou F. Voss S. Walter M. Wiescher K. Wisshak

The n_TOF Collaboration has built and commissioned a high-performance detector for ðn;gÞ measurements called the Total Absorption Calorimeter (TAC). The TAC was especially designed for measuring neutron capture cross-sections of low-mass and/or radioactive samples with the accuracy required for nuclear technology and stellar nucleosynthesis. We present a detailed description of the TAC and disc...

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