High-temperature thermal cleaning for GaAs photocathode

Dexin, 肖德鑫 Xiao; Kai, 李凯 Li; Qing, 潘清 Pan

doi:10.3788/hplpb2013250s.0158

Cited by 1 publication

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…During the heating removal process, the temperature distribution on the GaAs photocathode is derived with the ANSYS program. The QE distribution of the GaAs photocathode fabricated is relevant with the temperature distribution in the reference [63]. The HV DC gun (500 kV) is the key element of the THz-FEL facility at CAEP.…”

Section: Gaas Photocathodementioning

confidence: 99%

See 1 more Smart Citation

Overview of the Semiconductor Photocathode Research in China

Xie

2021

Micromachines

View full text Add to dashboard Cite

With the growing demand from scientific projects such as the X-ray free electron laser (XFEL), ultrafast electron diffraction/microscopy (UED/UEM) and electron ion collider (EIC), the semiconductor photocathode, which is a key technique for a high brightness electron source, has been widely studied in China. Several fabrication systems have been designed and constructed in different institutes and the vacuum of most systems is in the low 10−8 Pa level to grow a high QE and long lifetime photocathode. The QE, dark lifetime/bunch lifetime, spectral response and QE map of photocathodes with different kinds of materials, such as bialkali (K2CsSb, K2NaSb, etc.), Cs2Te and GaAs, have been investigated. These photocathodes will be used to deliver electron beams in a high voltage DC gun, a normal conducting RF gun, and an SRF gun. The emission physics of the semiconductor photocathode and intrinsic emittance reduction are also studied.

show abstract

Section: Gaas Photocathodementioning

confidence: 99%

“…(1) The GaAs substrate is cleaned by high temperature heating [63] to remove the residual oxygen and other impurity on the surface of the GaAs sample. The time for the high temperature cleaning is about 45 min.…”

Section: Gaas Photocathodementioning

confidence: 99%

Overview of the Semiconductor Photocathode Research in China

Xie

2021

Micromachines

View full text Add to dashboard Cite

show abstract

High-temperature thermal cleaning for GaAs photocathode

Cited by 1 publication

References 0 publications

Overview of the Semiconductor Photocathode Research in China

Overview of the Semiconductor Photocathode Research in China

Contact Info

Product

Resources

About