A UV LED-based fast-pulsed photoelectron source for time-of-flight studies

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.

16 pages, 11 figures

References in corpus (2)

• Final Results from phase II of the Mainz Neutrino Mass Search in Tritium $\beta$ Decay
• Neutrino mass limit from tritium beta decay

Cited by in corpus (9)

• Current Direct Neutrino Mass Experiments
• The KATRIN Pre-Spectrometer at reduced Filter Energy
• A pulsed, mono-energetic and angular-selective UV photo-electron source for the commissioning of the KATRIN experiment
• The KATRIN Experiment
• Neutrino mass sensitivity by MAC-E-Filter based time-of-flight spectroscopy with the example of KATRIN
• Effect of a sweeping conductive wire on electrons stored in the Penning trap between the KATRIN spectrometers
• Prototype of an angular-selective photoelectron calibration source for the KATRIN experiment
• Liquid Scintillator Time Projection Chamber Concept
• Ultraviolet stimulated electron source for use with low energy plasma instrument calibration