Zobrazeno 1 - 10
of 19
pro vyhledávání: '"John Sinsheimer"'
Autor:
Zihao Ding, Siddharth Karkare, Jun Feng, Daniele Filippetto, Matthew Johnson, Steve Virostek, Fernando Sannibale, James Nasiatka, Mengjia Gaowei, John Sinsheimer, Erik Muller, John Smedley, Howard Padmore
Publikováno v:
Physical Review Accelerators and Beams, Vol 20, Iss 11, p 113401 (2017)
K-Cs-Sb bialkali antimonide photocathodes grown by a triple-element codeposition method have been found to have excellent quantum efficiency (QE) and outstanding near-atomic surface smoothness and have been employed in the VHF gun in the Advanced Pho
Externí odkaz:
https://doaj.org/article/f4d8e42878f94ad1a940cbdd1e978d4c
Autor:
Harry van der Graaf, Behrouz Raftari, Serge Duarte Pinto, Neil V. Budko, Hassan Akhtar, Kees Vuik, Cornelis W. Hagen, V. Prodanovic, H.W. Chan, John Sinsheimer, Conny Hansson, Shuxia Tao, Gert Nützel, Pasqualina M. Sarro, John Smedley, Anne M.M.G. Theulings
Publikováno v:
Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 847, 148-161. Elsevier
By placing, in vacuum, a stack of transmission dynodes (tynodes) on top of a CMOS pixel chip, a single free electron detector could be made with outstanding performance in terms of spatial and time resolution. The essential object is the tynode: an u
Autor:
Junqi Xie, John Sinsheimer, John Smedley, Mengjia Gaowei, Derek Strom, Erik Muller, John J. Walsh, Jiajie Cen
Publikováno v:
Physical Review Accelerators and Beams, Vol 22, Iss 7, p 073401 (2019)
Cesium telluride (CsTe) photocathodes have been the primary choice for electron sources by worldwide accelerators, due to their high quantum yield, stable performance in complex operation environments and long lifetime. In this paper we compared the
Autor:
Tiberiu Stan, Peter B. Wells, Lynne Ecker, Eric Dooryhee, David J. Sprouster, N. Almirall, John Sinsheimer, G.R. Odette, Sanjit Ghose
Publikováno v:
Scripta Materialia. 113:18-22
Massive, thick-walled pressure vessels are permanent nuclear reactor structures that are exposed to a damaging flux of neutrons from the adjacent core. The neutrons cause embrittlement of the vessel steel that grows with dose (fluence), as manifested
Autor:
Daniel Finkenstadt, Lei Guo, Chohee Hyun, John Sinsheimer, Derek Strom, Vitaly Pavlenko, Masahiro Yamamoto, Nathan A. Moody, Anna Alexander, Jeffrey DeFazio, Hyeon Suk Shin, Fangze Liu, Hisato Yamaguchi, Kevin L. Jensen, John Smedley, Matthew Critchley, Seong In Yoon, Mengjia Gaowei
Publikováno v:
physica status solidi (a). 216:1900501
We report quantum efficiency (QE) enhancements in accelerator technology relevant antimonide photocathodes (K2CsSb) by interfacing them with atomically thin two-dimensional (2D) crystal layers. The enhancement occurs in a reflection mode, when a 2D c
Autor:
John Smedley, Jun Feng, J. Nasiatka, Daniele Filippetto, Zihao Ding, Siddharth Karkare, Steve Virostek, Erik Muller, Fernando Sannibale, Matthew R. Johnson, John Sinsheimer, Mengjia Gaowei, Howard A. Padmore
Publikováno v:
Physical Review Accelerators and Beams, vol 20, iss 11
Ding, Z; Karkare, S; Feng, J; Filippetto, D; Johnson, M; Virostek, S; et al.(2017). Temperature-dependent quantum efficiency degradation of K-Cs-Sb bialkali antimonide photocathodes grown by a triple-element codeposition method. Physical Review Accelerators and Beams, 20(11). doi: 10.1103/PhysRevAccelBeams.20.113401. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/5m22w19m
Physical Review Accelerators and Beams, Vol 20, Iss 11, p 113401 (2017)
Ding, Z; Karkare, S; Feng, J; Filippetto, D; Johnson, M; Virostek, S; et al.(2017). Temperature-dependent quantum efficiency degradation of K-Cs-Sb bialkali antimonide photocathodes grown by a triple-element codeposition method. Physical Review Accelerators and Beams, 20(11). doi: 10.1103/PhysRevAccelBeams.20.113401. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/5m22w19m
Physical Review Accelerators and Beams, Vol 20, Iss 11, p 113401 (2017)
© 2017 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/" Creative Commons Attribution 4.0 International license. Further distribution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdcec291c71d9ffdee3c310f91b13d88
https://escholarship.org/uc/item/5m22w19m
https://escholarship.org/uc/item/5m22w19m
Autor:
M. S. J. Marshall, J. Kuehn, Klaus Attenkofer, John J. Walsh, Henry J. Frisch, Howard A. Padmore, Erik Muller, Zihao Ding, Mengjia Gaowei, Harish B. Bhandari, Vivek V. Nagarkar, John Sinsheimer, John Smedley, S. Schubert
Publikováno v:
APL Materials, vol 5, iss 11
Gaowei, M; Ding, Z; Schubert, S; Bhandari, HB; Sinsheimer, J; Kuehn, J; et al.(2017). Synthesis and x-ray characterization of sputtered bi-alkali antimonide photocathodes. APL Materials, 5(11). doi: 10.1063/1.5010950. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/0d427913
APL Materials, Vol 5, Iss 11, Pp 116104-116104-7 (2017)
Gaowei, M; Ding, Z; Schubert, S; Bhandari, HB; Sinsheimer, J; Kuehn, J; et al.(2017). Synthesis and x-ray characterization of sputtered bi-alkali antimonide photocathodes. APL Materials, 5(11). doi: 10.1063/1.5010950. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/0d427913
APL Materials, Vol 5, Iss 11, Pp 116104-116104-7 (2017)
© 2017 Author(s). Advanced photoinjectors, which are critical to many next generation accelerators, open the door to new ways of material probing, both as injectors for free electron lasers and for ultra-fast electron diffraction. For these applicat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::318c05e313407c454be6b69eeb9fae04
https://escholarship.org/uc/item/0d427913
https://escholarship.org/uc/item/0d427913
Publikováno v:
Journal of synchrotron radiation. 23(Pt 6)
A new system of slits called `spiderweb slits' have been developed for depth-resolved powder or polycrystalline X-ray diffraction measurements. The slits act on diffracted X-rays to select a particular gauge volume of sample, while absorbing diffract
Autor:
Fabio Santagata, Sergio D. Pinto, Daan Rotman, S. E. Brunner, Dennis R. Schaart, Cornelis W. Hagen, John Smedley, V. Prodanovic, H.W. Chan, Anne M.M.G. Theulings, Gert Nützel, Edoardo Charbon, Shuxia Tao, Y. Bilevych, John Sinsheimer, Lina Sarro, Harry van der Graaf
Publikováno v:
Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 809(11), 171-174. Elsevier
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
With a miniaturised stack of transmission dynodes, a noise free amplifier is being developed for the detection of single free electrons, with excellent time- and 2D spatial resolution and efficiency. With this generic technology, a new family of dete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e31e8276a3d5f38c24f76d1cdb65c6fe
https://research.tue.nl/nl/publications/a7b297c9-4d91-400e-83fb-b677caffcc14
https://research.tue.nl/nl/publications/a7b297c9-4d91-400e-83fb-b677caffcc14
A Measurement of the Scintillation Light Yield in ${\rm CF}_{4}$ Using a Photosensitive GEM Detector
Autor:
C. L. Woody, S. P. Stoll, Adam Caccavano, Nikolai Smirnov, Babek Azmoun, John Sinsheimer, Matthew Rumore
Publikováno v:
IEEE Transactions on Nuclear Science. 57:2376-2381
The absolute photon yield of scintillation light produced by highly ionizing particles in pure CF4 has been measured using a photosensitive Gas Electron Multiplier (GEM) detector. The detector consists of two standard GEMs and a CsI coated GEM which