发布求助
文献互助 智能选刊 最新文献

arXiv: Instrumentation and Detectors最新文献

筛选
英文 中文
Ultracold muonium negative ion production 超冷介子负离子的产生
arXiv: Instrumentation and Detectors Pub Date : 2018-06-08 DOI: 10.1063/1.5083774
V. Dudnikov, A. Dudnikov
{"title":"Ultracold muonium negative ion production","authors":"V. Dudnikov, A. Dudnikov","doi":"10.1063/1.5083774","DOIUrl":"https://doi.org/10.1063/1.5083774","url":null,"abstract":"A new, efficient method to produce ultracold negative muon ions is proposed. The muonium atom is made up of an antimuon and an electron and is given the chemical symbol Mu. A second electron with binding energy or electron affinity of 0.75 eV makes the Mu- ion, which is in many ways almost identical to the H- ion that is used for charge-exchange injection into most proton particle accelerators. Muonium negative ions were observed in 1987 by interactions of muons with a foil. Using the foil charge-exchange approach, the efficiency of transformation of muons to negative muonium ions has been very low ~10-4. However, by using a hot tungsten or palladium single crystal foil or aerogel treated by cesium deposition, the production efficiency can be improved up to 50%. The process described here has surface muons focused onto a tungsten or palladium single crystal foil or aerogel (that can be heated up to 2000 Celsius) and partially covered by a cesium layer to provide a minimal work function. The negative muon ions can be extracted by a DC electric field and further accelerated by a linac and stripped in a thin foil. Charge exchange with a. dense flow of positive or negative ions is proposed for conversion of slow muonium atoms into positive and negative muonium ions","PeriodicalId":8827,"journal":{"name":"arXiv: Instrumentation and Detectors","volume":"51 1","pages":"060001"},"PeriodicalIF":0.0,"publicationDate":"2018-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88643443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Performance of CVD diamond single crystals as side-bounce monochromators in the Laue geometry at high photon energies 高光子能量下CVD金刚石单晶作为侧反射单色器的Laue几何性能
arXiv: Instrumentation and Detectors Pub Date : 2018-06-06 DOI: 10.1063/1.5084650
S. Stoupin, T. Krawczyk, J. Ruff, K. Finkelstein, H. Lee, R. Huang
{"title":"Performance of CVD diamond single crystals as side-bounce monochromators in the Laue geometry at high photon energies","authors":"S. Stoupin, T. Krawczyk, J. Ruff, K. Finkelstein, H. Lee, R. Huang","doi":"10.1063/1.5084650","DOIUrl":"https://doi.org/10.1063/1.5084650","url":null,"abstract":"We report on performance of chemical vapor deposited (CVD) single crystal diamond plates as side bounce monochromators for high photon energies ($gtrsim$~20 keV) in the Laue geometry. Several crystals were tested in-operando high-heat-load conditions at A1 undulator station of Cornell High Energy Synchrotron Source. Up to 10$times$ enhancement in the reflected x-ray flux was observed compared to that delivered by IIa diamond plates grown by high-pressure high-temperature method. Wavefront distortions were measured using analyzer-based x-ray diffraction imaging. Focusing of a portion of the reflected beam was demonstrated using Pt-coated mono capillary optics at a photon energy of 46 keV.","PeriodicalId":8827,"journal":{"name":"arXiv: Instrumentation and Detectors","volume":"1 1","pages":"060019"},"PeriodicalIF":0.0,"publicationDate":"2018-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82080420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A Proof-of-principle for Time-Of-Flight Positron Emission Tomography Imaging 飞行时间正电子发射断层成像的原理验证
arXiv: Instrumentation and Detectors Pub Date : 2018-05-30 DOI: 10.1007/978-3-319-73171-1_27
R. Ganai, S. Mehta, M. Shiroya, M. Mondal, Z. Ahammed, S. Chattopadhyay
{"title":"A Proof-of-principle for Time-Of-Flight Positron Emission Tomography Imaging","authors":"R. Ganai, S. Mehta, M. Shiroya, M. Mondal, Z. Ahammed, S. Chattopadhyay","doi":"10.1007/978-3-319-73171-1_27","DOIUrl":"https://doi.org/10.1007/978-3-319-73171-1_27","url":null,"abstract":"","PeriodicalId":8827,"journal":{"name":"arXiv: Instrumentation and Detectors","volume":"102 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90662444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantum-based vacuum metrology at NIST NIST的量子真空计量
arXiv: Instrumentation and Detectors Pub Date : 2018-05-17 DOI: 10.1002/https://dx.doi.org/10.1116/1.5033568
J. Scherschligt, J. Fedchak, Z. Ahmed, D. Barker, K. Douglass, S. Eckel, Edward Hanson, J. Hendricks, N. Klimov, T. Purdy, J. Ricker, Robinjeet Singh, J. Stone
{"title":"Quantum-based vacuum metrology at NIST","authors":"J. Scherschligt, J. Fedchak, Z. Ahmed, D. Barker, K. Douglass, S. Eckel, Edward Hanson, J. Hendricks, N. Klimov, T. Purdy, J. Ricker, Robinjeet Singh, J. Stone","doi":"10.1002/https://dx.doi.org/10.1116/1.5033568","DOIUrl":"https://doi.org/10.1002/https://dx.doi.org/10.1116/1.5033568","url":null,"abstract":"The measurement science in realizing and disseminating the unit for pressure in the International System of Units (SI), the pascal (Pa), has been the subject of much interest at the National Institute of Standards and Technology (NIST). Modern optical-based techniques for pascal metrology have been investigated, including multi-photon ionization and cavity ringdown spectroscopy. Work is ongoing to recast the pascal in terms of quantum properties and fundamental constants and in so doing, make vacuum metrology consistent with the global trend toward quantum-based metrology. NIST has ongoing projects that interrogate the index of refraction of a gas using an optical cavity for low vacuum, and count background particles in high vacuum to extreme high vacuum using trapped laser-cooled atoms.","PeriodicalId":8827,"journal":{"name":"arXiv: Instrumentation and Detectors","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84812500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microchannel plate cross-talk mitigation for spatial autocorrelation measurements 空间自相关测量的微通道板串扰缓解
arXiv: Instrumentation and Detectors Pub Date : 2018-05-09 DOI: 10.1063/1.5033559
M. Lipka, Michał Parniak, W. Wasilewski
{"title":"Microchannel plate cross-talk mitigation for spatial autocorrelation measurements","authors":"M. Lipka, Michał Parniak, W. Wasilewski","doi":"10.1063/1.5033559","DOIUrl":"https://doi.org/10.1063/1.5033559","url":null,"abstract":"Microchannel plates (MCP) are the basis for many spatially-resolved single-particle detectors such as ICCD or I-sCMOS cameras employing image intensifiers (II), MCPs with delay-line anodes for the detection of cold gas particles or Cherenkov radiation detectors. However, the spatial characterization provided by an MCP is severely limited by cross-talk between its microchannels, rendering MCP and II ill-suited for autocorrelation measurements. Here we present a cross-talk subtraction method experimentally exemplified for an I-sCMOS based measurement of pseudo-thermal light second-order intensity autocorrelation function at the single- photon level. The method merely requires a dark counts measurement for calibration. A reference cross- correlation measurement certifies the cross-talk subtraction. While remaining universal for MCP applications, the presented cross-talk subtraction in particular simplifies quantum optical setups. With the possibility of autocorrelation measurement the signal needs no longer to be divided into two camera regions for a cross- correlation measurement, reducing the experimental setup complexity and increasing at least twofold the simultaneously employable camera sensor region.","PeriodicalId":8827,"journal":{"name":"arXiv: Instrumentation and Detectors","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84955850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
Recent Results from the Majorana Demonstrator 马约拉纳演示器的最新结果
arXiv: Instrumentation and Detectors Pub Date : 2018-04-04 DOI: 10.1142/S2010194518600492
T. Gilliss, T. Gilliss, S. Alvis, I. Arnquist, F. Avignone, F. Avignone, A. Barabash, C. Barton, F. Bertrand, T. Bode, V. Brudanin, M. Busch, M. Busch, M. Buuck, T. Caldwell, T. Caldwell, Y. Chan, C. Christofferson, P. Chu, C. Cuesta, J. Detwiler, C. Dunagan, Y. Efremenko, Y. Efremenko, H. Ejiri, S. Elliott, G. Giovanetti, M. P. Green, M. P. Green, M. P. Green, J. Gruszko, I. Guinn, V. Guiseppe, C. Haufe, C. Haufe, L. Hehn, R. Henning, R. Henning, E. Hoppe, M. Howe, M. Howe, K. Keeter, M. Kidd, S. Konovalov, R. Kouzes, A. M. Lopez, R. Martin, R. Massarczyk, S. Meijer, S. Meijer, S. Mertens, S. Mertens, J. Myslik, C. O'Shaughnessy, C. O'Shaughnessy, G. Othman, G. Othman, W. Pettus, A. Poon, D. Radford, J. Rager, J. Rager, A. Reine, A. Reine, K. Rielage, R. Robertson, N. Ruof, B. Shanks, M. Shirchenko, A. Suriano, D. Tedeschi, R. Varner, S. Vasilyev, K. Vetter, K. Vorren, K. Vorren, B. White, J. Wilkerson, J. Wilkerson, J. Wilkerson, C. Wiseman, W. Xu, E. Yakushev, C. -. Yu, V. Yumatov, I. Zhitnikov, B. Zhu
{"title":"Recent Results from the Majorana Demonstrator","authors":"T. Gilliss, T. Gilliss, S. Alvis, I. Arnquist, F. Avignone, F. Avignone, A. Barabash, C. Barton, F. Bertrand, T. Bode, V. Brudanin, M. Busch, M. Busch, M. Buuck, T. Caldwell, T. Caldwell, Y. Chan, C. Christofferson, P. Chu, C. Cuesta, J. Detwiler, C. Dunagan, Y. Efremenko, Y. Efremenko, H. Ejiri, S. Elliott, G. Giovanetti, M. P. Green, M. P. Green, M. P. Green, J. Gruszko, I. Guinn, V. Guiseppe, C. Haufe, C. Haufe, L. Hehn, R. Henning, R. Henning, E. Hoppe, M. Howe, M. Howe, K. Keeter, M. Kidd, S. Konovalov, R. Kouzes, A. M. Lopez, R. Martin, R. Massarczyk, S. Meijer, S. Meijer, S. Mertens, S. Mertens, J. Myslik, C. O'Shaughnessy, C. O'Shaughnessy, G. Othman, G. Othman, W. Pettus, A. Poon, D. Radford, J. Rager, J. Rager, A. Reine, A. Reine, K. Rielage, R. Robertson, N. Ruof, B. Shanks, M. Shirchenko, A. Suriano, D. Tedeschi, R. Varner, S. Vasilyev, K. Vetter, K. Vorren, K. Vorren, B. White, J. Wilkerson, J. Wilkerson, J. Wilkerson, C. Wiseman, W. Xu, E. Yakushev, C. -. Yu, V. Yumatov, I. Zhitnikov, B. Zhu","doi":"10.1142/S2010194518600492","DOIUrl":"https://doi.org/10.1142/S2010194518600492","url":null,"abstract":"The MAJORANA Collaboration has completed construction and is now operating an array of high purity Ge detectors searching for neutrinoless double-beta decay ($0nubetabeta$) in $^{76}$Ge. The array, known as the MAJORANA DEMONSTRATOR, is comprised of 44 kg of Ge detectors (30 kg enriched to 88% in $^{76}$Ge) installed in an ultra-low background compact shield at the Sanford Underground Research Facility in Lead, South Dakota. The primary goal of the DEMONSTRATOR is to establish a low-background design that can be scaled to a next-generation tonne-scale experiment. This work reports initial background levels in the $0nubetabeta$ region of interest. Also presented are recent physics results leveraging P-type point-contact detectors with sub-keV energy thresholds to search for physics beyond the Standard Model; first results from searches for bosonic dark matter, solar axions, Pauli exclusion principle violation, and electron decay have been published. Finally, this work discusses the proposed tonne-scale $^{76}$Ge $0nubetabeta$ LEGEND experiment.","PeriodicalId":8827,"journal":{"name":"arXiv: Instrumentation and Detectors","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85111194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
DESIGN AND PERFORMANCE OF A LOW INTENSITY LED DRIVER FOR DETECTOR STUDY PURPOSES 用于探测器研究的低强度led驱动器的设计与性能
arXiv: Instrumentation and Detectors Pub Date : 2018-04-02 DOI: 10.21175/RadProc.2016.21
G. Georgiev, V. Kozhuharov, L. Tsankov
{"title":"DESIGN AND PERFORMANCE OF A LOW INTENSITY LED DRIVER FOR DETECTOR STUDY PURPOSES","authors":"G. Georgiev, V. Kozhuharov, L. Tsankov","doi":"10.21175/RadProc.2016.21","DOIUrl":"https://doi.org/10.21175/RadProc.2016.21","url":null,"abstract":"A custom LED driver producing light pulses with very low intensity and O(10 ns) duration was designed and constructed. A microcontroller was employed to handle the amplitudes and the repetition rates of the output pulses. In addition, it also provided both a PC control of the system through a RS232 interface and an external trigger I/O. A WLS fibre directly coupled to a LED provides unique characteristics of the output light pulse. The combination of a quasi delta light pulse source and physical absorption-emission medium results in an output light profile maximally close to the plastic sctintillators. The light generator is intended to be used to test the response and the rate capability of different photodetectors. Its design, operational characteristics, and stability are described and discussed.","PeriodicalId":8827,"journal":{"name":"arXiv: Instrumentation and Detectors","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89092340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
THE PADME TRACKING SYSTEM 帕德梅跟踪系统
arXiv: Instrumentation and Detectors Pub Date : 2018-04-02 DOI: 10.21175/RadJ.2016.03.034
G. Georgiev, V. Kozhuharov, L. Tsankov
{"title":"THE PADME TRACKING SYSTEM","authors":"G. Georgiev, V. Kozhuharov, L. Tsankov","doi":"10.21175/RadJ.2016.03.034","DOIUrl":"https://doi.org/10.21175/RadJ.2016.03.034","url":null,"abstract":"The Positron Annihilation into Dark Matter Experiment (PADME) at LNF-INFN Linac aims to perform a search for dark photons in positron-on-target annihilation process. A key component of the setup is the tracking system which allows vetoing the bremsstrahlung-induced background. Different solutions for the detector will be shown and will be discussed. Attention will be paid to the possibility to construct a hybrid tracker based on plastic scintillator fibers read out by CCD matrices.","PeriodicalId":8827,"journal":{"name":"arXiv: Instrumentation and Detectors","volume":"48 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91487095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Constraining the T2K Neutrino Flux Prediction with 2009 NA61/SHINE Replica-Target Data 用2009年NA61/SHINE复制目标数据约束T2K中微子通量预测
arXiv: Instrumentation and Detectors Pub Date : 2018-04-01 DOI: 10.5281/zenodo.1300546
T. Vladisavljevic
{"title":"Constraining the T2K Neutrino Flux Prediction with 2009 NA61/SHINE Replica-Target Data","authors":"T. Vladisavljevic","doi":"10.5281/zenodo.1300546","DOIUrl":"https://doi.org/10.5281/zenodo.1300546","url":null,"abstract":"Accurate modelling of the T2K neutrino flux is crucial for a better understanding of neutrino interactions at the near and far detectors. Most of T2K neutrinos are created through in-flight decays of unstable hadrons, produced by interactions of 31 GeV/c protons in a long graphite target (90 cm). External hadron production data is used for correcting the flux model. The analysis presented here uses a new NA61 dataset, collected in 2009 using the full length replica of the T2K target. The preliminary results suggest a reduction of the hadronic interaction component of the neutrino flux uncertainty by ~50%, to errors of less than 5%.","PeriodicalId":8827,"journal":{"name":"arXiv: Instrumentation and Detectors","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83833775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Radioactive contamination of scintillators 闪烁体的放射性污染
arXiv: Instrumentation and Detectors Pub Date : 2018-03-31 DOI: 10.1142/S0217751X18430078
F. Danevich, V. Tretyak
{"title":"Radioactive contamination of scintillators","authors":"F. Danevich, V. Tretyak","doi":"10.1142/S0217751X18430078","DOIUrl":"https://doi.org/10.1142/S0217751X18430078","url":null,"abstract":"Low counting experiments (search for double $beta$ decay and dark matter particles, measurements of neutrino fluxes from different sources, search for hypothetical nuclear and subnuclear processes, low background $alpha$, $beta$, $gamma$ spectrometry) require extremely low background of a detector. Scintillators are widely used to search for rare events both as conventional scintillation detectors and as cryogenic scintillating bolometers. Radioactive contamination of a scintillation material plays a key role to reach low level of background. Origin and nature of radioactive contamination of scintillators, experimental methods and results are reviewed. A programme to develop radiopure crystal scintillators for low counting experiments is discussed briefly.","PeriodicalId":8827,"journal":{"name":"arXiv: Instrumentation and Detectors","volume":"92 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91287660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 20
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信