Impacts of the radiation environment at L2 on bolometers onboard the Herschel Space Observatory

Author

Horeau, B. ; Boulade, O. ; Claret, A. ; Feuchtgruber, H. ; Okumura, K. ; Panuzzo, P. ; Papageorgiou, A. ; Revéret, V. ; Rodriguez, L. ; Sauvage, M.

Author_Institution

Service d´´Astrophys., CEA Saclay, Gif-sur-Yvette, France

fYear

2011

fDate

19-23 Sept. 2011

Firstpage

541

Lastpage

548

Abstract

We present the effects of cosmic rays on the detectors onboard the Herschel satellite. We describe in particular the glitches observed on the two types of cryogenic far-infrared bolometer inside the two instruments PACS and SPIRE. The glitch rates are also reported since the launch together with the SREM radiation monitors aboard Herschel and Planck spacecrafts. Both have been injected around the Lagrangian point L2 on May 2009. This allows probing the radiation environment around this orbit. The impacts on the observation are finally summarized.

Keywords

artificial satellites; bolometers; cosmic ray apparatus; cosmic ray interactions; cryogenics; infrared detectors; radiation effects; Herschel satellite; Herschel space observatory; Lagrangian point L2; PACS instruments; Planck spacecrafts; SPIRE instruments; SREM radiation; aboard Herschel spacecrafts; bolometers onboard; cosmic ray effect; cryogenic far-infrared bolometer; detectors onboard; radiation environment; Bolometers; Detectors; Instruments; Picture archiving and communication systems; Protons; Silicon; Space vehicles; Bolometers; Infrared detectors; cryogenics; radiation effects; submillimeter wave technology;

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.2011.6131435

Filename

6131435