Planck-LFI radiometers tuning

Details Planck-LFI radiometers tuning Planck-LFI radiometers tuning

2010-01-26

arxiv.org/abs/1001.4648v1

Journal of Instrumentation, Volume 4, Issue 12, pp. T12013 (2009)

Astronomy and Astrophysics

Astrophysics

Instrumentation and Methods for Astrophysics

This is an author-created, un-copyedited version of an article accepted for publication in JINST. IOP Publishing Ltd is not re

Scientific paper

10.1088/1748-0221/4/12/T12013

"This paper is part of the Prelaunch status LFI papers published on JINST: http://www.iop.org/EJ/journal/-page=extra.proc5/jinst" This paper describes the Planck Low Frequency Instrument tuning activities performed through the ground test campaigns, from Unit to Satellite Levels. Tuning is key to achieve the best possible instrument performance and tuning parameters strongly depend on thermal and electrical conditions. For this reason tuning has been repeated several times during ground tests and it has been repeated in flight before starting nominal operations. The paper discusses the tuning philosophy, the activities and the obtained results, highlighting developments and changes occurred during test campaigns. The paper concludes with an overview of tuning performed during the satellite cryogenic test campaign (Summer 2008) and of the plans for the just started in-flight calibration.

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