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Title: Uniformity and stability of the LSST focal plane

Abstract

The Large Synoptic Survey Telescope (LSST) focal plane consists of 21 autonomous modules [raft tower modules (RTMs)], each of which contains nine thick, fully depleted 4k × 4k CCDs with associated control and readout electronics. To enable LSST’s repetitive short-exposure cadence while maintaining high duty factor and low read noise, the readout is highly parallelized into 3024 independent video channels (16 per CCD and 144 per RTM). Two vendors supplied the LSST sensors; the devices have compatible mechanical and electrical interfaces and meet the same electro-optic specifications, but each RTM is constructed with sensors from a single supplier. The full complement of rafts was assembled at Brookhaven National Laboratory during January 2017 to January 2019. Each unit underwent extensive electro-optic and metrology characterization at operating temperature, the results of which are presented here along with a discussion of uniformity and stability.

Authors:
 [1]
  1. Brookhaven National Laboratory, Instrumentation Division, Upton, New York
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF)
OSTI Identifier:
1570062
Alternate Identifier(s):
OSTI ID: 1603275
Report Number(s):
BNL-213697-2020-JAAM
Journal ID: ISSN 2329-4124
Grant/Contract Number:  
SC0012704; AC02-76SF00515
Resource Type:
Published Article
Journal Name:
Journal of Astronomical Telescopes, Instruments, and Systems
Additional Journal Information:
Journal Name: Journal of Astronomical Telescopes, Instruments, and Systems Journal Volume: 5 Journal Issue: 04; Journal ID: ISSN 2329-4124
Publisher:
SPIE
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; LSST; CCDs; CCD readout

Citation Formats

O’Connor, Paul. Uniformity and stability of the LSST focal plane. United States: N. p., 2019. Web. doi:10.1117/1.JATIS.5.4.041508.
O’Connor, Paul. Uniformity and stability of the LSST focal plane. United States. doi:10.1117/1.JATIS.5.4.041508.
O’Connor, Paul. Fri . "Uniformity and stability of the LSST focal plane". United States. doi:10.1117/1.JATIS.5.4.041508.
@article{osti_1570062,
title = {Uniformity and stability of the LSST focal plane},
author = {O’Connor, Paul},
abstractNote = {The Large Synoptic Survey Telescope (LSST) focal plane consists of 21 autonomous modules [raft tower modules (RTMs)], each of which contains nine thick, fully depleted 4k × 4k CCDs with associated control and readout electronics. To enable LSST’s repetitive short-exposure cadence while maintaining high duty factor and low read noise, the readout is highly parallelized into 3024 independent video channels (16 per CCD and 144 per RTM). Two vendors supplied the LSST sensors; the devices have compatible mechanical and electrical interfaces and meet the same electro-optic specifications, but each RTM is constructed with sensors from a single supplier. The full complement of rafts was assembled at Brookhaven National Laboratory during January 2017 to January 2019. Each unit underwent extensive electro-optic and metrology characterization at operating temperature, the results of which are presented here along with a discussion of uniformity and stability.},
doi = {10.1117/1.JATIS.5.4.041508},
journal = {Journal of Astronomical Telescopes, Instruments, and Systems},
number = 04,
volume = 5,
place = {United States},
year = {2019},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1117/1.JATIS.5.4.041508

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