Open AccessDevelopment of Helium Direct Current Discharge Ultraviolet Light Source
Author(s) -
Xiaoqian Shi,
Mark Zhu,
Zhaokang Zhan,
Kan Zang,
Hui Dong,
Fangzhun Guo
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/772/1/012035
Subject(s) - ultraviolet , anode , current (fluid) , helium , ultraviolet light , ultraviolet photoelectron spectroscopy , light source , materials science , x ray photoelectron spectroscopy , gas discharge lamp , analytical chemistry (journal) , optoelectronics , chemistry , atomic physics , optics , electrical engineering , physics , electrode , nuclear magnetic resonance , chromatography , engineering
Ultra-violet (UV) light source is one of the important components of ultraviolet photoelectron spectroscopy (UPS). A Helium direct current discharge ultraviolet light source is mainly composed of anode, quartz capillary, gas inlet pipe, differential exhaust assembly and heat sink. At 80Pa working pressure and 30mA discharge current, the test sample shows 1nA photoelectron current. Photoelectron current increases proportional with discharge current. The results show that the He DCDUV light source is working well and can be used as the light source in UPS.