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Proceedings Paper

LSST craft raft integration support equipment: design, assembly, and test status
Author(s): Travis Lange; Boyd Bowdish; Stefano Russo; Stephen Tether; Seth W. Digel; Tony Johnson; Scott P. Newbry; Andrew P. Rasmussen; Vincent T. Lee; Kevin A. Reil; Tim Bond; Giorgio Dho
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Paper Abstract

We present the mechanical device used to install the Raft Tower Modules (RTMs) into the cryosat of the camera for the Large Synoptic Survey Telescope (LSST). In an RTM, the charge-coupled devices (CCDs) are packaged into a 3 x 3 Raft Sensor Assembly (RSA) and coupled to a Raft Electronics Crate (REC). An RTM weighs ~10 kg, is roughly 500 mm tall, and has a 126.5 mm-square footprint at the CCDs. The grid array which supports the RTM in the cryostat has a center-to-center distance of 127 mm. One of the key challenges for installing the RTMs in the 500 μm gap between CCDs of adjacent modules - contact between adjacent CCDs is strictly forbidden.

Paper Details

Date Published: 6 July 2018
PDF: 13 pages
Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 107024J (6 July 2018); doi: 10.1117/12.2310061
Show Author Affiliations
Travis Lange, SLAC National Accelerator Lab. (United States)
Boyd Bowdish, SLAC National Accelerator Lab. (United States)
Stefano Russo, SLAC National Accelerator Lab. (United States)
Stephen Tether, SLAC National Accelerator Lab. (United States)
Seth W. Digel, SLAC National Accelerator Lab. (United States)
Tony Johnson, SLAC National Accelerator Lab. (United States)
Scott P. Newbry, SLAC National Accelerator Lab. (United States)
Andrew P. Rasmussen, SLAC National Accelerator Lab. (United States)
Vincent T. Lee, SLAC National Accelerator Lab. (United States)
Kevin A. Reil, SLAC National Accelerator Lab. (United States)
Tim Bond, SLAC National Accelerator Lab. (United States)
Giorgio Dho, Univ. degli Studi di Torino, Dipartimento di Fisica (Italy)


Published in SPIE Proceedings Vol. 10702:
Ground-based and Airborne Instrumentation for Astronomy VII
Christopher J. Evans; Luc Simard; Hideki Takami, Editor(s)

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