Photocathode Physics for Photoinjectors 2018

Session

Session 8

Session 8

16 Oct 2018, 15:45

Pueblo Conference Room A (Hilton-Buffalo Thunder)

Conveners

Session 8: Operations and Demonstrations - Superconducting & DC

• John Smedley (Brookhaven National Laboratory)

48. Bialkali Photocathode performance for electron cooling application operated in DC and SRF guns

Dr Erdong Wang (Brookhaven National Laboratory)

16/10/2018, 15:45

Session 8: Operations and Demonstrations - Superconducting & DC

49. Cornell DC cryogun

Mr William Li (Cornell University)

16/10/2018, 16:05

Session 8: Operations and Demonstrations - Superconducting & DC

Many recent efforts to improve the intrinsic emittance of photocathodes have centered on lowering the excess energy of the emitted electrons by using photon energies at or below threshold. However, this comes at the significant expense of quantum efficiency. Thus, for short pulse applications, nonlinear photoemission is a concern, due to the commensurate increase in excess energy in higher...

50. Overcoming challenges related to the operation of photocathodes in SRF photoinjectors

Dr Julius Kuehn (Helmholtz-Zentrum Berlin)

16/10/2018, 16:25

Session 8: Operations and Demonstrations - Superconducting & DC

The HZB accelerator project bERLinPro (berlin Energy Recovery Linac Prototype) is continuously developing and is aiming for first operation in 2019. The goal of bERLinPro is to demonstrate a superconducting ERL with high current and low emittance. Within this highly complex R&D project a key component has been developed in-house: the photocathode, which is the electron source, and...

51. Jlab magnetized gun

Dr Md Abdullah Mamun (Jefferson National Laboratory)

16/10/2018, 16:45

Session 8: Operations and Demonstrations - Superconducting & DC

Bunched-beam electron cooling is a key feature of all proposed designs of the future electron-ion collider, and a requirement for achieving the specified collision luminosity. For the Jefferson Lab Electron Ion Collider (JLEIC), fast cooling of ion beams will be accomplished via so-called 'magnetized cooling' implemented using a recirculator ring that employs an energy recovery linac. In this...

52. The photocathode research for DC-SRF Photoinjector at Peking University

Dr Huamu Xie (PKU)

16/10/2018, 17:05

Session 8: Operations and Demonstrations - Superconducting & DC

88. Robust Cs2Te and Mg photocathodes in SRF gun at ELBE center successful for CW IR FEL and THz radiation

rong xiang (Helmholtz-Zentrum Dresden-Rossendorf)

16/10/2018, 17:25

Session 8: Operations and Demonstrations - Superconducting & DC

Quality of photocathodes is one of the critical issues for the stability and reliability of the light source facility. In 2014, SRF gun-I with Cs2Te provided stable electron beams successfully for IR FEL at HZDR [1]. Cs2Te worked in SRF gun for more than one year without degradation. Currently, Mg photocathodes with QE up to 0.5% are applied in SRF Gun II, which is able to generate e- beam...