Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8170859 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2016 | 11 Pages |
Abstract
We report the measurement of longitudinal electron diffusion coefficients in liquid argon for electric fields between 100 and 2000 V/cm with a gold photocathode as a bright electron source. The measurement principle, apparatus, and data analysis are described. In the region between 100 and 350 V/cm, our results show a discrepancy with the previous measurement [1]. In the region between 350 and 2000 V/cm, our results represent the world׳s best measurement. Over the entire measured electric field range, our results are systematically higher than the calculation of AtrazhevâTimoshkin [2]. The quantum efficiency of the gold photocathode, the drift velocity and longitudinal diffusion coefficients in gas argon are also presented.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Yichen Li, Thomas Tsang, Craig Thorn, Xin Qian, Milind Diwan, Jyoti Joshi, Steve Kettell, William Morse, Triveni Rao, James Stewart, Wei Tang, Brett Viren,