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

fYear

2011

fDate

19-23 Sept. 2011

Firstpage

894

Lastpage

900

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Radiation and Its Effects on Components and Systems (RADECS), 2011 12th European Conference on

Conference_Location

Sevilla

ISSN

0379-6566

Print_ISBN

978-1-4577-0585-4

Type

conf

DOI

10.1109/RADECS.2011.6131323

Filename

6131323