Imperial College London


Faculty of Natural SciencesDepartment of Physics

Professor of Experimental Astrophysics



+44 (0)20 7594 7552t.sumner




1108Blackett LaboratorySouth Kensington Campus






BibTex format

author = {Hollington, D and Baird, JT and Sumner, TJ and Wass, PJ},
doi = {1361-6382/aa87eb},
journal = {Classical and Quantum Gravity},
title = {Lifetime testing UV LEDs for use in the LISA charge management system},
url = {},
volume = {34},
year = {2017}

RIS format (EndNote, RefMan)

AB - As a future charge management light source, UV light-emitting diodes (UV LEDs) offer far superior performance in a range of metrics compared to the mercury lamps used in the past. As part of a qualification program a number of short wavelength UV LEDs have been subjected to a series of lifetime tests for potential use on the laser interferometer space antenna (LISA) mission. These tests were performed at realistic output levels for both fast and continuous discharging in either a DC or pulsed mode of operation and included a DC fast discharge test spanning 50 days, a temperature dependent pulsed fast discharge test spanning 21 days and a pulsed continuous discharge test spanning 507 days. Two types of UV LED have demonstrated lifetimes equivalent to over 25 years of realistic mission usage with one type providing a baseline for LISA and the other offering a backup solution.
AU - Hollington,D
AU - Baird,JT
AU - Sumner,TJ
AU - Wass,PJ
DO - 1361-6382/aa87eb
PY - 2017///
SN - 0264-9381
TI - Lifetime testing UV LEDs for use in the LISA charge management system
T2 - Classical and Quantum Gravity
UR -
UR -
VL - 34
ER -