XIA Jingkai, QIAN Sen, WANG Wenwen, et al. Measurement and study of the photocathode quantum efficiency of photoelectric conversion device[J]. Nuclear techniques, 2014, 37(9): 090401
DOI:
XIA Jingkai, QIAN Sen, WANG Wenwen, et al. Measurement and study of the photocathode quantum efficiency of photoelectric conversion device[J]. Nuclear techniques, 2014, 37(9): 090401 DOI: 10.11889/j.0253-3219.2014.hjs.37.090401.
Measurement and study of the photocathode quantum efficiency of photoelectric conversion device封面论文
Background: Photoelectric devices such as photomultiplier tubes (PMTs)
photo diodes (PDs) and solar cells are widely used in many applications
so reliable evaluation on the performances of such devices is quite necessary
especially for the accurate measurements and calibrations on the photocathode quantum efficiency (QE). Purpose: We aim to build up a cathode performance evaluation system and study the properties of different types of cathodes. Methods: Two different methods named as the relative measurement and the direct measurements were employed to measure the QE values of cathodes. In addition
a 2D platform was built to achieve convenient and accurate processes for the plane type photocathode position uniformity test. Results: With the evaluation system
the cathode properties of dozens of photoelectric devices were tested. The measured QE results
either from the relative or the direct measurement
are consistent with the data provided by the manufacturers or a third party. Conclusion: Our cathode evaluation system is reliable and could be used to study the detailed photocathode properties such as QE
spectral response and position uniformity. Abstract