Conceptual design of the Keck Wide Field Imager (KWFI)

Matthew V. Radovan; Rob Bertz; Jeff Cooke; Richard Dekany; Alex Delacroix; Jason Fucik; Peter R. Gillingham; Shanti Krishnan; Gregory Poole; Ray Seikel; Roger Smith; Nao Suzuki; Tony Travouillon

doi:10.1117/12.2630502

Conceptual design of the Keck Wide Field Imager (KWFI)

Matthew V. Radovan^*, Rob Bertz, Jeff Cooke, Richard Dekany, Alex Delacroix, Jason Fucik, Peter R. Gillingham, Shanti Krishnan, Gregory Poole, Ray Seikel, Roger Smith, Nao Suzuki, Tony Travouillon

^*Corresponding author for this work

Australian Astronomical Optics

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

2 Citations (Scopus)

Abstract

The Keck Wide Field Imager (KWFI) is a 1-degree field of view imager optimized to take advantage of the superb UV performance of the W.M. Keck Observatory (WMKO) located atop Mauna Kea in Hawaii. The project is an international collaboration between Swinburne University, ANU Macquarie University, Caltech, UC Observatories, and W.M Keck Observatory. KWFI is an all-fused silica 4-lens element corrector that operates over u,g,r,i, and z photometric bands from 300 - 1000 nm where the design achieves 0.5" 80% encircled energy diameter rms over the FOV within each photometric band. The KWFI collaboration is completing an 18-month conceptual design phase and is preparing to issue the most critical, long-lead-time procurements to address the critical path to first-light operations, following a public/private fundraising model. Our technically paced schedule, driven by corrector lens figuring, is expected to culminate in KWFI First Light in Summer 2027. We report here on the instrument concept and the progress towards a significant new capability for the WMKO.

Original language	English
Title of host publication	Ground-based and Airborne Instrumentation for Astronomy IX
Editors	Christopher J. Evans, Julia J. Bryant, Kentaro Motohara
Place of Publication	Washington, DC
Publisher	SPIE
Pages	1-20
Number of pages	20
ISBN (Electronic)	9781510653504
ISBN (Print)	9781510653498
DOIs	https://doi.org/10.1117/12.2630502
Publication status	Published - 2022
Event	Conference on Ground-based and Airborne Instrumentation for Astronomy IX - Montreal, Canada Duration: 17 Jul 2022 → 22 Jul 2022

Publication series

Name	Proceedings of SPIE
Publisher	SPIE
Volume	12184
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Conference on Ground-based and Airborne Instrumentation for Astronomy IX
Country/Territory	Canada
City	Montreal
Period	17/07/22 → 22/07/22

Keywords

UV Imager
CCD Mosaic
Prime Focus Camera
Atmospheric Dispersion Compensation
Hexapod
Deployable Secondary Mirror
Image Rotator
Large Format Filters

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10.1117/12.2630502

Cite this

Radovan, M. V., Bertz, R., Cooke, J., Dekany, R., Delacroix, A., Fucik, J., Gillingham, P. R., Krishnan, S., Poole, G., Seikel, R., Smith, R., Suzuki, N., & Travouillon, T. (2022). Conceptual design of the Keck Wide Field Imager (KWFI). In C. J. Evans, J. J. Bryant, & K. Motohara (Eds.), Ground-based and Airborne Instrumentation for Astronomy IX (pp. 1-20). Article 121840N (Proceedings of SPIE; Vol. 12184). SPIE. https://doi.org/10.1117/12.2630502

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title = "Conceptual design of the Keck Wide Field Imager (KWFI)",

abstract = "The Keck Wide Field Imager (KWFI) is a 1-degree field of view imager optimized to take advantage of the superb UV performance of the W.M. Keck Observatory (WMKO) located atop Mauna Kea in Hawaii. The project is an international collaboration between Swinburne University, ANU Macquarie University, Caltech, UC Observatories, and W.M Keck Observatory. KWFI is an all-fused silica 4-lens element corrector that operates over u,g,r,i, and z photometric bands from 300 - 1000 nm where the design achieves 0.5{"} 80\% encircled energy diameter rms over the FOV within each photometric band. The KWFI collaboration is completing an 18-month conceptual design phase and is preparing to issue the most critical, long-lead-time procurements to address the critical path to first-light operations, following a public/private fundraising model. Our technically paced schedule, driven by corrector lens figuring, is expected to culminate in KWFI First Light in Summer 2027. We report here on the instrument concept and the progress towards a significant new capability for the WMKO.",

keywords = "UV Imager, CCD Mosaic, Prime Focus Camera, Atmospheric Dispersion Compensation, Hexapod, Deployable Secondary Mirror, Image Rotator, Large Format Filters",

author = "Radovan, \{Matthew V.\} and Rob Bertz and Jeff Cooke and Richard Dekany and Alex Delacroix and Jason Fucik and Gillingham, \{Peter R.\} and Shanti Krishnan and Gregory Poole and Ray Seikel and Roger Smith and Nao Suzuki and Tony Travouillon",

year = "2022",

doi = "10.1117/12.2630502",

language = "English",

isbn = "9781510653498",

series = "Proceedings of SPIE",

publisher = "SPIE",

pages = "1--20",

editor = "Evans, \{Christopher J.\} and Bryant, \{Julia J.\} and Kentaro Motohara",

booktitle = "Ground-based and Airborne Instrumentation for Astronomy IX",

address = "United States",

note = "Conference on Ground-based and Airborne Instrumentation for Astronomy IX ; Conference date: 17-07-2022 Through 22-07-2022",

}

Radovan, MV, Bertz, R, Cooke, J, Dekany, R, Delacroix, A, Fucik, J, Gillingham, PR, Krishnan, S, Poole, G, Seikel, R, Smith, R, Suzuki, N & Travouillon, T 2022, Conceptual design of the Keck Wide Field Imager (KWFI). in CJ Evans, JJ Bryant & K Motohara (eds), Ground-based and Airborne Instrumentation for Astronomy IX., 121840N, Proceedings of SPIE, vol. 12184, SPIE, Washington, DC, pp. 1-20, Conference on Ground-based and Airborne Instrumentation for Astronomy IX, Montreal, Canada, 17/07/22. https://doi.org/10.1117/12.2630502

Conceptual design of the Keck Wide Field Imager (KWFI). / Radovan, Matthew V.; Bertz, Rob; Cooke, Jeff et al.
Ground-based and Airborne Instrumentation for Astronomy IX. ed. / Christopher J. Evans; Julia J. Bryant; Kentaro Motohara. Washington, DC: SPIE, 2022. p. 1-20 121840N (Proceedings of SPIE; Vol. 12184).

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

TY - GEN

T1 - Conceptual design of the Keck Wide Field Imager (KWFI)

AU - Radovan, Matthew V.

AU - Bertz, Rob

AU - Cooke, Jeff

AU - Dekany, Richard

AU - Delacroix, Alex

AU - Fucik, Jason

AU - Gillingham, Peter R.

AU - Krishnan, Shanti

AU - Poole, Gregory

AU - Seikel, Ray

AU - Smith, Roger

AU - Suzuki, Nao

AU - Travouillon, Tony

PY - 2022

Y1 - 2022

N2 - The Keck Wide Field Imager (KWFI) is a 1-degree field of view imager optimized to take advantage of the superb UV performance of the W.M. Keck Observatory (WMKO) located atop Mauna Kea in Hawaii. The project is an international collaboration between Swinburne University, ANU Macquarie University, Caltech, UC Observatories, and W.M Keck Observatory. KWFI is an all-fused silica 4-lens element corrector that operates over u,g,r,i, and z photometric bands from 300 - 1000 nm where the design achieves 0.5" 80% encircled energy diameter rms over the FOV within each photometric band. The KWFI collaboration is completing an 18-month conceptual design phase and is preparing to issue the most critical, long-lead-time procurements to address the critical path to first-light operations, following a public/private fundraising model. Our technically paced schedule, driven by corrector lens figuring, is expected to culminate in KWFI First Light in Summer 2027. We report here on the instrument concept and the progress towards a significant new capability for the WMKO.

AB - The Keck Wide Field Imager (KWFI) is a 1-degree field of view imager optimized to take advantage of the superb UV performance of the W.M. Keck Observatory (WMKO) located atop Mauna Kea in Hawaii. The project is an international collaboration between Swinburne University, ANU Macquarie University, Caltech, UC Observatories, and W.M Keck Observatory. KWFI is an all-fused silica 4-lens element corrector that operates over u,g,r,i, and z photometric bands from 300 - 1000 nm where the design achieves 0.5" 80% encircled energy diameter rms over the FOV within each photometric band. The KWFI collaboration is completing an 18-month conceptual design phase and is preparing to issue the most critical, long-lead-time procurements to address the critical path to first-light operations, following a public/private fundraising model. Our technically paced schedule, driven by corrector lens figuring, is expected to culminate in KWFI First Light in Summer 2027. We report here on the instrument concept and the progress towards a significant new capability for the WMKO.

KW - UV Imager

KW - CCD Mosaic

KW - Prime Focus Camera

KW - Atmospheric Dispersion Compensation

KW - Hexapod

KW - Deployable Secondary Mirror

KW - Image Rotator

KW - Large Format Filters

UR - https://www.scopus.com/pages/publications/85178516445

U2 - 10.1117/12.2630502

DO - 10.1117/12.2630502

M3 - Conference proceeding contribution

SN - 9781510653498

T3 - Proceedings of SPIE

SP - 1

EP - 20

BT - Ground-based and Airborne Instrumentation for Astronomy IX

A2 - Evans, Christopher J.

A2 - Bryant, Julia J.

A2 - Motohara, Kentaro

PB - SPIE

CY - Washington, DC

T2 - Conference on Ground-based and Airborne Instrumentation for Astronomy IX

Y2 - 17 July 2022 through 22 July 2022

ER -

Conceptual design of the Keck Wide Field Imager (KWFI)

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Keywords

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