A UV LED-based fast-pulsed photoelectron source for time-of-flight studies
Instrumentation and Detectors
2009-06-19 v2
Abstract
We report on spectroscopy and time-of-flight measurements using an 18 keV fast-pulsed photoelectron source of adjustable intensity, ranging from single photoelectrons per pulse to 5 photoelectrons per microsecond at pulse repetition rates of up to 10 kHz. Short pulses between 40 ns and 40 microseconds in length were produced by switching light emitting diodes with central output wavelengths of 265 nm and 257 nm, in the deep ultraviolet (or UV-C) regime, at kHz frequencies. Such photoelectron sources can be useful calibration devices for testing the properties of high-resolution electrostatic spectrometers, like the ones used in current neutrino mass searches.
Cite
@article{arxiv.0902.2305,
title = {A UV LED-based fast-pulsed photoelectron source for time-of-flight studies},
author = {K. Valerius and M. Beck and H. Arlinghaus and J. Bonn and V. M. Hannen and H. Hein and B. Ostrick and S. Streubel and Ch. Weinheimer and M. Zboril},
journal= {arXiv preprint arXiv:0902.2305},
year = {2009}
}
Comments
16 pages, 11 figures