17 citations · 55 across the 10 of their papers we have counts for
10 papers
Rapid Mapping of Photocathode Quantum Efficiency: A Magnetized Electron Beam Imaging Approach
Yihan Liu, Lianmin Zheng, Yingchao Du
Quantum efficiency (QE) is a key property of photocathodes, and its uniformity is essential for producing high-brightness electron beams. Cathode imaging provides an \textit{in-sit…
Sub-5-fs compression and synchronization of relativistic electron bunches enabled by a high-gradient -magnet and low-jitter photoinjector
Yining Yang, Zhiyuan Wang, Peng Lv +9
Generating high-brightness relativistic electron bunches with few-femtosecond duration, while simultaneously achieving few-fs synchronization with ultrafast lasers, remains an outs…
Experiment Research on Feasibility of In-Situ Plasma Cleaning in Normal-conducting Copper Cavities
Qianxu Xia, Lianmin Zheng, Yingchao Du
To assess the feasibility of in-situ plasma cleaning for copper cavities, a 13.56 MHz inductively coupled plasma platform with a built-in coil was developed at Tsinghua University.…
Mapping electrostatic potential in electrolyte solution
Bo Huang, Yining Yang, Ruinong Han +15
Mapping the electrostatic potential (ESP) distribution around ions in electrolyte solution is crucial for the establishment of a microscopic understanding of electrolyte solution p…
Eliminating uncertainty of thermal emittance measurement in solenoid scans due to rf and solenoid fields overlap
Lianmin Zheng, Yingchao Du, Pengwei Huang
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…
Development and high-power testing of an X-band dielectric-loaded power extractor
Jiahang Shao, Chunguang Jing, Eric Wisniewski +5
Dielectric loaded structures are promising candidates for use in the structure wakefield acceleration (SWFA) technique, for both the collinear wakefield and the two-beam accelerati…
Rapid thermal emittance and quantum efficiency mapping of a cesium telluride cathode in an rf photoinjector using multiple laser beamlets
Lianmin Zheng, Jiahang Shao, Eric E. Wisniewski +8
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 tec…
Experimental demonstration of the correction of coupled transverse dynamics aberration in an rf photoinjector
Lianmin Zheng, Jiahang Shao, Yingchao Du +9
The production of electron bunches with low transverse emittance approaches the thermal emittance of the photocathode as various aberrations are corrected. Recently, the coupled tr…
Overestimation of thermal emittance in solenoid scans due to coupled transverse motion
Lianmin Zheng, Jiahang Shao, Yingchao Du +9
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 con…
Effects of Laser Pulse Heating of Copper Photocathodes on High-brightness Electron Beam Production at Blowout Regime
Lianmin Zheng, Yingchao Du, Chuanxiang Tang +1
Producing high-brightness and high-charge (>100 pC) electron bunches at blowout regime requires ultrashort laser pulses with high fluence. The effects of laser pulse heating of the…