International Workshop on Energy Recovery Linacs (ERL 22)

Session

Electron Sources

07

Oct 4, 2022, 3:40 PM

Cornell University

Conveners

Electron Sources: Session I

• Luca Cultrera

Electron Sources: Session II

• Dmitry Kayran (Brookhaven National Laboratory)

Electron Sources: Session III

• Vladimir Litvinenko (Stony Brook University)

Description

Electron Source (Guns) Technology and Developments

71. Capability and Prospects for High Current Polarized Beams from GaAs DC Photoguns - REMOTE

JOSEPH GRAMES (JEFFERSON LAB)

10/4/22, 3:40 PM

Electron Sources

Presentation

Extending the charge lifetime of today’s spin polarized GaAs photoelectron guns from hundreds to thousands of Coulombs is a reasonable expectation for long-duration operation at milliampere beam current. In this presentation I will describe some of the topics frequently considered to achieve this goal, and will make quantitative comments about their proven or proposed likelihood for...

75. Molecular beam epitaxy of Cs-Sb thin films: structure-oriented growth of high efficiency photocathodes - REMOTE

Alice Galdi (Universita degli Studi di Salerno), Alice Galdi

10/4/22, 4:00 PM

Electron Sources

Presentation

Cs3Sb and related alkali antimonide compounds are high efficiency semiconductor photocathodes that can be operated with visible light and possess quantum efficiency of the order of 1-10% at green light wavelengths. Use of these photocathodes in modern linear accelerators is desirable thanks to their potential to generate high brightness electron beams. However, the ultimate brightness of a...

46. Progress on 2D protective coating for photocathodes

Hisato Yamaguchi (LANL)

10/4/22, 4:20 PM

Electron Sources

Presentation

74. Photocathodes for high average current electron beam: state-of-the-art and new perspective

Mengjia Gaowei (BNL)

10/4/22, 4:40 PM

Electron Sources

Presentation

Attaining high quantum yield, low emittance, and long lifetime from an alkali antimonide photocathode has remained a sustained focus in recent years, due especially to the need for electron beams of high average current for ERL-based electron cooling systems, synchrontron radiation sources, electron ion colliders and other applications. The ongoing development of photocathodes is motivated by...

49. PERLE electron source status and requirement for LHeC

Maud Baylac (IJCLab)

10/5/22, 1:10 PM

Electron Sources

Presentation

51. High voltage DC gun for high intensity polarized electron source

Omer Rahman (BNL)

10/5/22, 1:30 PM

Electron Sources

Presentation

52. DC gun for Low Energy RHIC cooler (LEReC) project

Xiaofeng Gu, Xiaofeng Gu (BNL)

10/5/22, 1:50 PM

Electron Sources

Presentation

3. The high repetition rate thermionic injector

Rick van den Berg (Technische Universiteit Eindhoven)

10/5/22, 2:10 PM

Electron Sources

Presentation

At Eindhoven university a high repetition rate thermionic injector is being built. The injector is capable of supplying electron bunches at a repetition rate of 1.5 GHz, which can be used for x-ray generation.
The electron source generates a continuous beam with a high current and low emittance through thermionic emission. The continuous electron beam is then chopped into a pulsed beam by a...

53. Long term operational experience of running Cs2Te cathodes in HZDRs SRF gun (REMOTE)

Rong Xiang (Helmholtz-Zentrum Dresden-Rossendorf)

10/6/22, 10:30 AM

Electron Sources

Presentation

https://cornell.zoom.us/j/93456110989?pwd=WXVwYU1xaW51cHcrWFROSFdOcEpnQT09

54. Low frequency 113MHz SRF gun with room temperature photocathode for Coherent electron cooling experiment (CeC-X)

Irina Petrushina (Stony Brook University)

10/6/22, 10:50 AM

Electron Sources

Presentation

55. Commissioning of the SLAC Linac Coherent Light Source II electron source

Feng Zhou (SLAC)

10/6/22, 11:10 AM

Electron Sources

Presentation

66. DC gun for Low Energy RHIC cooler project

Xiaofeng Gu

Electron Sources

Presentation

Electron cooling of ion beams employing rf-accelerated electron bunches was successfully used for the RHIC physics program in 2020 and 2021. Electron cooler LEReC uses a high-voltage photoemission electron gun with stringent requirements for beam current, beam quality, and stability. The electron gun has a photocathode with a high-power fiber laser, and a novel cathode production, transport,...

73. Low frequency 113 MHz SRF gun with room temperature photocathode for Coherent electron Cooling experiment (CeC-X)

Irina Petrushina (Stony Brook University)

Electron Sources

Presentation

High-current low-emittance CW electron beams are of great importance for the existing and future DOE facilities, medical, industrial and security applications. The CW superconducting radiofrequency (SRF) electron photoinjector is one of the most advanced, but also one of the most challenging, technologies promising to deliver such beams. While SRF technology is paving the way for future...

50. Photocathodes for high average current electron beam: state-of-the-art and new perspective - delete

Mengjia Gaowei (BNL)

Electron Sources

Presentation

47. Progress on spin polarized electron beam sources for high current - REMOTE

Joe Grames (JLab)

Electron Sources

Presentation

48. Single-crystal alkali antimonide photocathode: High efficiency in the ultra-thin limit - REMOTE

Alice Galdi

Electron Sources

Presentation

https://cornell.zoom.us/j/93456110989?pwd=WXVwYU1xaW51cHcrWFROSFdOcEpnQT09