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pro vyhledávání: '"Han J. W."'
S-band deflectors are generally operated on pulsed mode for beam diagnosis. We plan to deploy 5 S-band (2997 MHz) deflectors to accurately measure the longitudinal time distribution of ultra-short electron beam pulses in Shenzhen Superconducting Soft
Externí odkaz:
http://arxiv.org/abs/2405.09796
Autor:
Zhu, J. F., Ding, H. L., Li, H. K., Han, J. W., Dai, X. W., Xu, B., Shi, L., Yang, J. Y., Zhang, W. Q.
The primary accelerator of DCLS (Dalian Coherent Light Source) operates at a repetition rate of 20 Hz now, and the beam is divided at the end of the linear accelera-tor through Kicker to make two 10 Hz beamlines work simultaneously. For the simultane
Externí odkaz:
http://arxiv.org/abs/2311.08414
Autor:
Zhu, J. F., Ding, H. L., Li, H. K., Han, J. W., Dai, X. W., Chen, Z. C., Yang, J. Y., Zhang, W. Q.
In FEL (Free-Electron Laser) accelerators, LLRF (Low-Level Radiofrequency) systems usually deploy feedback or feedforward algorithms requiring precise microwave measurement. The slow drift of the clock allocation network of LLRF significantly impacts
Externí odkaz:
http://arxiv.org/abs/2311.09414
DCLS (Dalian Coherent Light Source) is an FEL (Free-Electron Laser) user facility at EUV (Extreme Ultraviolet). The primary accelerator of DCLS operates at a repetition rate of 20 Hz, and the beam is divided at the end of the linear accelerator throu
Externí odkaz:
http://arxiv.org/abs/2311.09416
Autor:
Li, H. K., Ding, H. L., Li, Y., Zhu, J. F., Han, J. W., Dai, X. W., Yang, J. Y., Zhang, W. Q.
In many experiments, the simultaneous emission of multiple wavelengths of FEL (Free-Electron Laser) is significant. For the pulsed-mode FEL facility, we must accelerate multiple electron beams in one microwave pulse, and they may be in different ampl
Externí odkaz:
http://arxiv.org/abs/2310.15998
During the pulsed operation of the linear accelerator in DCLS (Dalian Coherent Light Source), we found a strong correlation between the klystron modulator's high voltage and the klystron output microwave, with noticeable jitter among adjacent microwa
Externí odkaz:
http://arxiv.org/abs/2310.15968
Publikováno v:
EPJ Web of Conferences, Vol 157, p 03022 (2017)
105/140Ghz dual frequency gyrotron is used in KSTAR tokamak for an electron cyclotron resonance heating (ECRH). The ECH launcher consists of a fixed mirror, a steering mirror, cooling systems and some mechanical component for a steering mirror. We ha
Externí odkaz:
https://doaj.org/article/cb3c302cc0f146279a7eae0960f62ff3
Autor:
Han, J. W., Kim, Sun-Woo, Kyung, W. S., Kim, C., Cao, G., Chen, X., Wilson, S. D., Cheon, Sangmo, Lee, J. S.
Publikováno v:
Phys. Rev. B 102, 041108(R) (2020)
A Dirac fermion emerges as a result of interplay between symmetry and topology in condensed matter. Current research moves towards investigating the Dirac fermions in the presence of manybody effects in correlated system. Here, we demonstrate the eme
Externí odkaz:
http://arxiv.org/abs/2006.12451
Autor:
Laurita, N. J., Ron, A., Han, J. W., Scheie, A., Sheckelton, J. P., Smaha, R. W., He, W., Wen, J. -J., Lee, J. S., Lee, Y. S., Norman, M. R., Hsieh, D.
Nearest-neighbor interacting S = 1/2 spins on the ideal Kagom\'{e} lattice are predicted to form a variety of novel quantum entangled states, including quantum spin-liquid (SL) and valence bond solid (VBS) phases. In real materials, the presence of a
Externí odkaz:
http://arxiv.org/abs/1910.13606
Autor:
DRIJVERS, HAN J. W., author
Publikováno v:
Die orientalischen Religionen im Römerreich. :241-263