BoloCalc: A sensitivity calculator for the design of Simons Observatory

Charles A. Hill; Sarah Marie M. Bruno; Sara M. Simon; Aamir Ali; Kam S. Arnold; Peter C. Ashton; Darcy Barron; Sean Bryan; Yuji Chinone; Gabriele Coppi; Kevin T. Crowley; Ari Cukierman; Simon Dicker; Jo Dunkley; Giulio Fabbian; Nicholas Galitzki; Patricio A. Gallardo; Jon E. Gudmundsson; Johannes Hubmayr; Brian Keating; Akito Kusaka; Adrian T. Lee; Frederick Matsuda; Philip D. Mauskopf; Jeffrey McMahon; Michael D. Niemack; Giuseppe Puglisi; Mayuri Sathyanarayana Rao; Maria Salatino; Carlos Sierra; Suzanne Staggs; Aritoki Suzuki; Grant Teply; Joel N. Ullom; Benjamin Westbrook; Zhilei Xu; Ningfeng Zhu

doi:10.1117/12.2313916

BoloCalc: A sensitivity calculator for the design of Simons Observatory

Charles A. Hill^*, Sarah Marie M. Bruno, Sara M. Simon, Aamir Ali, Kam S. Arnold, Peter C. Ashton, Darcy Barron, Sean Bryan, Yuji Chinone, Gabriele Coppi, Kevin T. Crowley, Ari Cukierman, Simon Dicker, Jo Dunkley, Giulio Fabbian, Nicholas Galitzki, Patricio A. Gallardo, Jon E. Gudmundsson, Johannes Hubmayr, Brian KeatingAkito Kusaka, Adrian T. Lee, Frederick Matsuda, Philip D. Mauskopf, Jeffrey McMahon, Michael D. Niemack, Giuseppe Puglisi, Mayuri Sathyanarayana Rao, Maria Salatino, Carlos Sierra, Suzanne Staggs, Aritoki Suzuki, Grant Teply, Joel N. Ullom, Benjamin Westbrook, Zhilei Xu, Ningfeng Zhu

^*Corresponding author for this work

Faculty of Physical Sciences

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

15 Citations (Scopus)

Abstract

The Simons Observatory (SO) is an upcoming experiment that will study temperature and polarization fluctuations in the cosmic microwave background (CMB) from the Atacama Desert in Chile. SO will field both a large aperture telescope (LAT) and an array of small aperture telescopes (SATs) that will observe in six bands with center frequencies spanning from 27 to 270 GHz. Key considerations during the SO design phase are vast, including the number of cameras per telescope, focal plane magnification and pixel density, in-band optical power and camera throughput, detector parameter tolerances, and scan strategy optimization. To inform the SO design in a rapid, organized, and traceable manner, we have created a Python-based sensitivity calculator with several state-of-the-art features, including detector-to-detector optical white-noise correlations, a handling of simulated and measured bandpasses, and propagation of low-level parameter uncertainties to uncertainty in on-sky noise performance. We discuss the mathematics of the sensitivity calculation, the calculator's object-oriented structure and key features, how it has informed the design of SO, and how it can enhance instrument design in the broader CMB community, particularly for CMB-S4.

Original language	English
Title of host publication	Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX
Editors	Jonas Zmuidzinas, Jian-Rong Gao
Publisher	SPIE
ISBN (Print)	9781510619692
DOIs	https://doi.org/10.1117/12.2313916
Publication status	Published - 2018
Event	Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018 - Austin, United States Duration: 12 Jun 2018 → 15 Jun 2018

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	10708
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018
Country/Territory	United States
City	Austin
Period	12/06/18 → 15/06/18

Bibliographical note

Funding Information:
This work was supported in part by a grant from the Simons Foundation (Award #457687, B.K.). We thank Scott Paine and Denis Barkats (Harvard University) for providing the atmospheric profiles for the Atacama and South Pole sites that are input into the AM simulations.

Publisher Copyright:
© 2018 SPIE.

Other keywords

CMB
Cosmic microwave background
mapping speed
noise
noise-equivalent temperature
sensitivity
Simons Observatory

Access to Document

10.1117/12.2313916

Cite this

Hill, C. A., Bruno, S. M. M., Simon, S. M., Ali, A., Arnold, K. S., Ashton, P. C., Barron, D., Bryan, S., Chinone, Y., Coppi, G., Crowley, K. T., Cukierman, A., Dicker, S., Dunkley, J., Fabbian, G., Galitzki, N., Gallardo, P. A., Gudmundsson, J. E., Hubmayr, J., ... Zhu, N. (2018). BoloCalc: A sensitivity calculator for the design of Simons Observatory. In J. Zmuidzinas, & J-R. Gao (Eds.), Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX Article 1070842 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10708). SPIE. https://doi.org/10.1117/12.2313916

@inproceedings{f645a71e96cb43dfa8568fe7ae5e44ff,

title = "BoloCalc: A sensitivity calculator for the design of Simons Observatory",

abstract = "The Simons Observatory (SO) is an upcoming experiment that will study temperature and polarization fluctuations in the cosmic microwave background (CMB) from the Atacama Desert in Chile. SO will field both a large aperture telescope (LAT) and an array of small aperture telescopes (SATs) that will observe in six bands with center frequencies spanning from 27 to 270 GHz. Key considerations during the SO design phase are vast, including the number of cameras per telescope, focal plane magnification and pixel density, in-band optical power and camera throughput, detector parameter tolerances, and scan strategy optimization. To inform the SO design in a rapid, organized, and traceable manner, we have created a Python-based sensitivity calculator with several state-of-the-art features, including detector-to-detector optical white-noise correlations, a handling of simulated and measured bandpasses, and propagation of low-level parameter uncertainties to uncertainty in on-sky noise performance. We discuss the mathematics of the sensitivity calculation, the calculator's object-oriented structure and key features, how it has informed the design of SO, and how it can enhance instrument design in the broader CMB community, particularly for CMB-S4.",

keywords = "CMB, Cosmic microwave background, mapping speed, noise, noise-equivalent temperature, sensitivity, Simons Observatory",

author = "Hill, {Charles A.} and Bruno, {Sarah Marie M.} and Simon, {Sara M.} and Aamir Ali and Arnold, {Kam S.} and Ashton, {Peter C.} and Darcy Barron and Sean Bryan and Yuji Chinone and Gabriele Coppi and Crowley, {Kevin T.} and Ari Cukierman and Simon Dicker and Jo Dunkley and Giulio Fabbian and Nicholas Galitzki and Gallardo, {Patricio A.} and Gudmundsson, {Jon E.} and Johannes Hubmayr and Brian Keating and Akito Kusaka and Lee, {Adrian T.} and Frederick Matsuda and Mauskopf, {Philip D.} and Jeffrey McMahon and Niemack, {Michael D.} and Giuseppe Puglisi and Rao, {Mayuri Sathyanarayana} and Maria Salatino and Carlos Sierra and Suzanne Staggs and Aritoki Suzuki and Grant Teply and Ullom, {Joel N.} and Benjamin Westbrook and Zhilei Xu and Ningfeng Zhu",

note = "Funding Information: This work was supported in part by a grant from the Simons Foundation (Award #457687, B.K.). We thank Scott Paine and Denis Barkats (Harvard University) for providing the atmospheric profiles for the Atacama and South Pole sites that are input into the AM simulations. Publisher Copyright: {\textcopyright} 2018 SPIE.; Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018 ; Conference date: 12-06-2018 Through 15-06-2018",

year = "2018",

doi = "10.1117/12.2313916",

language = "English",

isbn = "9781510619692",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE",

editor = "Jonas Zmuidzinas and Jian-Rong Gao",

booktitle = "Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX",

address = "United States",

}

Hill, CA, Bruno, SMM, Simon, SM, Ali, A, Arnold, KS, Ashton, PC, Barron, D, Bryan, S, Chinone, Y, Coppi, G, Crowley, KT, Cukierman, A, Dicker, S, Dunkley, J, Fabbian, G, Galitzki, N, Gallardo, PA, Gudmundsson, JE, Hubmayr, J, Keating, B, Kusaka, A, Lee, AT, Matsuda, F, Mauskopf, PD, McMahon, J, Niemack, MD, Puglisi, G, Rao, MS, Salatino, M, Sierra, C, Staggs, S, Suzuki, A, Teply, G, Ullom, JN, Westbrook, B, Xu, Z & Zhu, N 2018, BoloCalc: A sensitivity calculator for the design of Simons Observatory. in J Zmuidzinas & J-R Gao (eds), Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX., 1070842, Proceedings of SPIE - The International Society for Optical Engineering, vol. 10708, SPIE, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018, Austin, United States, 12/06/18. https://doi.org/10.1117/12.2313916

BoloCalc: A sensitivity calculator for the design of Simons Observatory. / Hill, Charles A.; Bruno, Sarah Marie M.; Simon, Sara M. et al.
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX. ed. / Jonas Zmuidzinas; Jian-Rong Gao. SPIE, 2018. 1070842 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10708).

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

TY - GEN

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T2 - Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018

AU - Hill, Charles A.

AU - Bruno, Sarah Marie M.

AU - Simon, Sara M.

AU - Ali, Aamir

AU - Arnold, Kam S.

AU - Ashton, Peter C.

AU - Barron, Darcy

AU - Bryan, Sean

AU - Chinone, Yuji

AU - Coppi, Gabriele

AU - Crowley, Kevin T.

AU - Cukierman, Ari

AU - Dicker, Simon

AU - Dunkley, Jo

AU - Fabbian, Giulio

AU - Galitzki, Nicholas

AU - Gallardo, Patricio A.

AU - Gudmundsson, Jon E.

AU - Hubmayr, Johannes

AU - Keating, Brian

AU - Kusaka, Akito

AU - Lee, Adrian T.

AU - Matsuda, Frederick

AU - Mauskopf, Philip D.

AU - McMahon, Jeffrey

AU - Niemack, Michael D.

AU - Puglisi, Giuseppe

AU - Rao, Mayuri Sathyanarayana

AU - Salatino, Maria

AU - Sierra, Carlos

AU - Staggs, Suzanne

AU - Suzuki, Aritoki

AU - Teply, Grant

AU - Ullom, Joel N.

AU - Westbrook, Benjamin

AU - Xu, Zhilei

AU - Zhu, Ningfeng

N1 - Funding Information: This work was supported in part by a grant from the Simons Foundation (Award #457687, B.K.). We thank Scott Paine and Denis Barkats (Harvard University) for providing the atmospheric profiles for the Atacama and South Pole sites that are input into the AM simulations. Publisher Copyright: © 2018 SPIE.

PY - 2018

Y1 - 2018

N2 - The Simons Observatory (SO) is an upcoming experiment that will study temperature and polarization fluctuations in the cosmic microwave background (CMB) from the Atacama Desert in Chile. SO will field both a large aperture telescope (LAT) and an array of small aperture telescopes (SATs) that will observe in six bands with center frequencies spanning from 27 to 270 GHz. Key considerations during the SO design phase are vast, including the number of cameras per telescope, focal plane magnification and pixel density, in-band optical power and camera throughput, detector parameter tolerances, and scan strategy optimization. To inform the SO design in a rapid, organized, and traceable manner, we have created a Python-based sensitivity calculator with several state-of-the-art features, including detector-to-detector optical white-noise correlations, a handling of simulated and measured bandpasses, and propagation of low-level parameter uncertainties to uncertainty in on-sky noise performance. We discuss the mathematics of the sensitivity calculation, the calculator's object-oriented structure and key features, how it has informed the design of SO, and how it can enhance instrument design in the broader CMB community, particularly for CMB-S4.

AB - The Simons Observatory (SO) is an upcoming experiment that will study temperature and polarization fluctuations in the cosmic microwave background (CMB) from the Atacama Desert in Chile. SO will field both a large aperture telescope (LAT) and an array of small aperture telescopes (SATs) that will observe in six bands with center frequencies spanning from 27 to 270 GHz. Key considerations during the SO design phase are vast, including the number of cameras per telescope, focal plane magnification and pixel density, in-band optical power and camera throughput, detector parameter tolerances, and scan strategy optimization. To inform the SO design in a rapid, organized, and traceable manner, we have created a Python-based sensitivity calculator with several state-of-the-art features, including detector-to-detector optical white-noise correlations, a handling of simulated and measured bandpasses, and propagation of low-level parameter uncertainties to uncertainty in on-sky noise performance. We discuss the mathematics of the sensitivity calculation, the calculator's object-oriented structure and key features, how it has informed the design of SO, and how it can enhance instrument design in the broader CMB community, particularly for CMB-S4.

KW - CMB

KW - Cosmic microwave background

KW - mapping speed

KW - noise

KW - noise-equivalent temperature

KW - sensitivity

KW - Simons Observatory

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DO - 10.1117/12.2313916

M3 - Conference contribution

AN - SCOPUS:85051258772

SN - 9781510619692

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX

A2 - Zmuidzinas, Jonas

A2 - Gao, Jian-Rong

PB - SPIE

Y2 - 12 June 2018 through 15 June 2018

ER -

Hill CA, Bruno SMM, Simon SM, Ali A, Arnold KS, Ashton PC et al. BoloCalc: A sensitivity calculator for the design of Simons Observatory. In Zmuidzinas J, Gao J-R, editors, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX. SPIE. 2018. 1070842. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2313916

BoloCalc: A sensitivity calculator for the design of Simons Observatory

Abstract

Publication series

Conference

Bibliographical note

Other keywords

Access to Document

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Cite this