Title :
Proton irradiation of commercial high power light emitting diodes for space applications
Author :
Jiménez, Juan J. ; Hernando, Carlos ; Domínguez, José A. ; Álvarez, Maite
Author_Institution :
Inst. Nac. de Tec. Aerosp. (INTA), Madrid, Spain
Abstract :
Light emitting diodes are widely used in space applications. In low Earth orbits missions, they are exposed to radiation environments that comprise mainly protons. The proton fluence that they must withstand in flight varies for each mission. Several commercial high power emitting diodes were irradiated with 50 MeV protons at different fluxes and up to various fluences by INTA. Their output power and time response degradations are analyzed. Conclusions about their suitability in proton-dominated radiation environments are drawn.
Keywords :
light emitting diodes; power semiconductor diodes; radiation hardening (electronics); space vehicle electronics; INTA; commercial high power light emitting diodes; electron volt energy 50 meV; low Earth orbits missions; proton fluence; proton irradiation; proton-dominated radiation environments; space applications; Annealing; Degradation; Fitting; Light emitting diodes; Protons; Radiation effects; Time factors; light emitting diodes; proton irradiation; radiation effects;
Conference_Titel :
Radiation and Its Effects on Components and Systems (RADECS), 2011 12th European Conference on
Conference_Location :
Sevilla
Print_ISBN :
978-1-4577-0585-4
DOI :
10.1109/RADECS.2011.6131323
