Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Lianmin Zheng"'
Autor:
Lianmin Zheng, Han Chen, Bin Gao, Zixuan Dong, Zizheng Li, Yanqing Jia, Qili Tian, Qianxu Xia, Yijiang Zhu, Jingjing You, Yingchao Du, Lixin Yan, Jiaru Shi, Qingzi Xing, Renkai Li, Wenhui Huang, Huaibi Chen, Chuanxiang Tang
Publikováno v:
Physical Review Accelerators and Beams, Vol 26, Iss 10, p 103402 (2023)
Tsinghua University is currently developing a very-high-frequency electron gun that operates in continuous-wave (cw) mode at 216.667 MHz. This gun will serve as the beam source for the Shanghai high repetition rate XFEL and extreme light facility. Th
Externí odkaz:
https://doaj.org/article/630630cb2bf1469d94f73fd17590c896
Autor:
Han Chen, Lianmin Zheng, Pengwei Huang, Chuangye Song, Yingchao Du, Renkai Li, Wenhui Huang, Chuanxiang Tang
Publikováno v:
Physical Review Accelerators and Beams, Vol 24, Iss 12, p 124402 (2021)
Emittance is a key figure-of-merit for high brightness electron beams that enable the success of a broad range of modern accelerator-based instruments. With the successful implementation of the emittance compensation scheme and beam-shaping technique
Externí odkaz:
https://doaj.org/article/08a6ce58ade84a05adce264890f5ed81
Autor:
Lianmin Zheng, Jiahang Shao, Eric E. Wisniewski, John G. Power, Yingchao Du, Wanming Liu, Charles E. Whiteford, Manoel Conde, Scott Doran, Chunguang Jing, Chuanxiang Tang
Publikováno v:
Physical Review Accelerators and Beams, Vol 23, Iss 5, p 052801 (2020)
Thermal emittance and quantum efficiency (QE) are key figures of merit of photocathodes, and their uniformity is critical to high-performance photoinjectors. Several QE mapping technologies have been successfully developed; however, there is still a
Externí odkaz:
https://doaj.org/article/401f6678b0e047739a6a2aa3f4f9f81e
Autor:
Jiahang Shao, Chunguang Jing, Eric Wisniewski, Gwanghui Ha, Manoel Conde, Wanming Liu, John Power, Lianmin Zheng
Publikováno v:
Physical Review Accelerators and Beams, Vol 23, Iss 1, p 011301 (2020)
Dielectric-loaded structures are promising candidates for use in structure wakefield acceleration. They could be useful for both the collinear wakefield and the two-beam acceleration (TBA) approaches, due to their low fabrication cost, low radio-freq
Externí odkaz:
https://doaj.org/article/eb3feb0ec4c04cd8bae4447257c34330
Autor:
Lianmin Zheng, Jiahang Shao, Yingchao Du, John G. Power, Eric E. Wisniewski, Wanming Liu, Charles E. Whiteford, Manoel Conde, Scott Doran, Chunguang Jing, Chuanxiang Tang, Wei Gai
Publikováno v:
Physical Review Accelerators and Beams, Vol 22, Iss 7, p 072805 (2019)
The production of electron bunches with low transverse emittance approaches the thermal emittance of the photocathode as various aberrations are corrected. Recently, the coupled-transverse-dynamics aberration was theoretically identified as a signifi
Externí odkaz:
https://doaj.org/article/1618b03421514b0fb0688d508287288e
Autor:
Lianmin Zheng, Jiahang Shao, Yingchao Du, John G. Power, Eric E. Wisniewski, Wanming Liu, Charles E. Whiteford, Manoel Conde, Scott Doran, Chunguang Jing, Chuanxiang Tang, Wei Gai
Publikováno v:
Physical Review Accelerators and Beams, Vol 21, Iss 12, p 122803 (2018)
The solenoid scan is a widely used method for the in-situ measurement of the thermal emittance in a photocathode gun. The popularity of this method is due to its simplicity and convenience since all rf photocathode guns are equipped with an emittance
Externí odkaz:
https://doaj.org/article/0e8a7363c9004048ac5500a7ff394a4d
Autor:
Peng-Wei Huang, Han Chen, Lianmin Zheng, Huaibi Chen, Yingchao Du, Wenhui Huang, Jiaru Shi, Renkai Li, Chuanxiang Tang
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 1051:168251
Autor:
Siyuan Feng, Bohan Hou, Hongyi Jin, Wuwei Lin, Junru Shao, Ruihang Lai, Zihao Ye, Lianmin Zheng, Cody Hao Yu, Yong Yu, Tianqi Chen
Deploying deep learning models on various devices has become an important topic. The wave of hardware specialization brings a diverse set of acceleration primitives for multi-dimensional tensor computations. These new acceleration primitives, along w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7a6c5d30b18d27fe1ffe10a39985cc2
Publikováno v:
KDD
In recent years, the pace of innovations in the fields of machine learning (ML) has accelerated, researchers in SysML have created algorithms and systems that parallelize ML training over multiple devices or computational nodes. As ML models become m
The solenoid scan is one of the most common methods for the in-situ measurement of the thermal emittance of a photocathode in an rf photoinjector. The fringe field of the solenoid overlaps with the gun rf field in quite a number of photoinjectors, wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51a03b7da8c29a5ec243fd196a3a1689
http://arxiv.org/abs/2106.02337
http://arxiv.org/abs/2106.02337