The Simons Observatory Microwave SQUID Multiplexing Detector Module Design

Heather McCarrick; Erin Healy; Zeeshan Ahmed; Kam Arnold; Zachary Atkins; Jason E. Austermann; Tanay Bhandarkar; James A. Beall; Sarah Marie Bruno; Steve K. Choi; Jake Connors; Nicholas F. Cothard; Kevin D. Crowley; Simon Dicker; Bradley Dober; Cody J. Duell; Shannon M. Duff; Daniel Dutcher; Josef C. Frisch; Nicholas Galitzki; Megan B. Gralla; Jon E. Gudmundsson; Shawn W. Henderson; Gene C. Hilton; Shuay Pwu Patty Ho; Zachary B. Huber; Johannes Hubmayr; Jeffrey Iuliano; Bradley R. Johnson; Anna M. Kofman; Akito Kusaka; Jack Lashner; Adrian T. Lee; Yaqiong Li; Michael J. Link; Tammy J. Lucas; Marius Lungu; J. A.B. Mates; Jeffrey J. McMahon; Michael D. Niemack; John Orlowski-Scherer; Joseph Seibert; Maximiliano Silva-Feaver; Sara M. Simon; Suzanne Staggs; Aritoki Suzuki; Tomoki Terasaki; Joel N. Ullom; Eve M. Vavagiakis; Leila R. Vale; Jeff Van Lanen; Michael R. Vissers; Yuhan Wang; Edward J. Wollack; Zhilei Xu; Edward Young; Cyndia Yu; Kaiwen Zheng; Ningfeng Zhu; Robert Thornton

doi:10.3847/1538-4357/ac2232

The Simons Observatory Microwave SQUID Multiplexing Detector Module Design

Heather McCarrick, Erin Healy, Zeeshan Ahmed, Kam Arnold, Zachary Atkins, Jason E. Austermann, Tanay Bhandarkar, James A. Beall, Sarah Marie Bruno, Steve K. Choi, Jake Connors, Nicholas F. Cothard, Kevin D. Crowley, Simon Dicker, Bradley Dober, Cody J. Duell, Shannon M. Duff, Daniel Dutcher, Josef C. Frisch, Nicholas GalitzkiMegan B. Gralla, Jon E. Gudmundsson, Shawn W. Henderson, Gene C. Hilton, Shuay Pwu Patty Ho, Zachary B. Huber, Johannes Hubmayr, Jeffrey Iuliano, Bradley R. Johnson, Anna M. Kofman, Akito Kusaka, Jack Lashner, Adrian T. Lee, Yaqiong Li, Michael J. Link, Tammy J. Lucas, Marius Lungu, J. A.B. Mates, Jeffrey J. McMahon, Michael D. Niemack, John Orlowski-Scherer, Joseph Seibert, Maximiliano Silva-Feaver, Sara M. Simon, Suzanne Staggs, Aritoki Suzuki, Tomoki Terasaki, Joel N. Ullom, Eve M. Vavagiakis, Leila R. Vale, Jeff Van Lanen, Michael R. Vissers, Yuhan Wang, Edward J. Wollack, Zhilei Xu, Edward Young, Cyndia Yu, Kaiwen Zheng, Ningfeng Zhu, Robert Thornton

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

Advances in cosmic microwave background (CMB) science depend on increasing the number of sensitive detectors observing the sky. New instruments deploy large arrays of superconducting transition-edge sensor (TES) bolometers tiled densely into ever larger focal planes. High multiplexing factors reduce the thermal loading on the cryogenic receivers and simplify their design. We present the design of focal-plane modules with an order of magnitude higher multiplexing factor than has previously been achieved with TES bolometers. We focus on the novel cold readout component, which employs microwave SQUID multiplexing (μmux). Simons Observatory will use 49 modules containing 70,000 bolometers to make exquisitely sensitive measurements of the CMB. We validate the focal-plane module design, presenting measurements of the readout component with and without a prototype detector array of 1728 polarization-sensitive bolometers coupled to feedhorns. The readout component achieves a 95% yield and a 910 multiplexing factor. The median white noise of each readout channel is 65 pA/√Hz. This impacts the projected SO mapping speed by <8%, which is less than is assumed in the sensitivity projections. The results validate the full functionality of the module. We discuss the measured performance in the context of SO science requirements, which are exceeded.

Original language	English (US)
Article number	38
Journal	Astrophysical Journal
Volume	922
Issue number	1
DOIs	https://doi.org/10.3847/1538-4357/ac2232
State	Published - Nov 20 2021

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-4357/ac2232

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McCarrick, H., Healy, E., Ahmed, Z., Arnold, K., Atkins, Z., Austermann, J. E., Bhandarkar, T., Beall, J. A., Bruno, S. M., Choi, S. K., Connors, J., Cothard, N. F., Crowley, K. D., Dicker, S., Dober, B., Duell, C. J., Duff, S. M., Dutcher, D., Frisch, J. C., ... Thornton, R. (2021). The Simons Observatory Microwave SQUID Multiplexing Detector Module Design. Astrophysical Journal, 922(1), Article 38. https://doi.org/10.3847/1538-4357/ac2232

@article{5d217f9dd9144bc3a50ed475c9027e1d,

title = "The Simons Observatory Microwave SQUID Multiplexing Detector Module Design",

abstract = "Advances in cosmic microwave background (CMB) science depend on increasing the number of sensitive detectors observing the sky. New instruments deploy large arrays of superconducting transition-edge sensor (TES) bolometers tiled densely into ever larger focal planes. High multiplexing factors reduce the thermal loading on the cryogenic receivers and simplify their design. We present the design of focal-plane modules with an order of magnitude higher multiplexing factor than has previously been achieved with TES bolometers. We focus on the novel cold readout component, which employs microwave SQUID multiplexing (μmux). Simons Observatory will use 49 modules containing 70,000 bolometers to make exquisitely sensitive measurements of the CMB. We validate the focal-plane module design, presenting measurements of the readout component with and without a prototype detector array of 1728 polarization-sensitive bolometers coupled to feedhorns. The readout component achieves a 95% yield and a 910 multiplexing factor. The median white noise of each readout channel is 65 pA/√Hz. This impacts the projected SO mapping speed by <8%, which is less than is assumed in the sensitivity projections. The results validate the full functionality of the module. We discuss the measured performance in the context of SO science requirements, which are exceeded.",

author = "Heather McCarrick and Erin Healy and Zeeshan Ahmed and Kam Arnold and Zachary Atkins and Austermann, {Jason E.} and Tanay Bhandarkar and Beall, {James A.} and Bruno, {Sarah Marie} and Choi, {Steve K.} and Jake Connors and Cothard, {Nicholas F.} and Crowley, {Kevin D.} and Simon Dicker and Bradley Dober and Duell, {Cody J.} and Duff, {Shannon M.} and Daniel Dutcher and Frisch, {Josef C.} and Nicholas Galitzki and Gralla, {Megan B.} and Gudmundsson, {Jon E.} and Henderson, {Shawn W.} and Hilton, {Gene C.} and Ho, {Shuay Pwu Patty} and Huber, {Zachary B.} and Johannes Hubmayr and Jeffrey Iuliano and Johnson, {Bradley R.} and Kofman, {Anna M.} and Akito Kusaka and Jack Lashner and Lee, {Adrian T.} and Yaqiong Li and Link, {Michael J.} and Lucas, {Tammy J.} and Marius Lungu and Mates, {J. A.B.} and McMahon, {Jeffrey J.} and Niemack, {Michael D.} and John Orlowski-Scherer and Joseph Seibert and Maximiliano Silva-Feaver and Simon, {Sara M.} and Suzanne Staggs and Aritoki Suzuki and Tomoki Terasaki and Ullom, {Joel N.} and Vavagiakis, {Eve M.} and Vale, {Leila R.} and {Van Lanen}, Jeff and Vissers, {Michael R.} and Yuhan Wang and Wollack, {Edward J.} and Zhilei Xu and Edward Young and Cyndia Yu and Kaiwen Zheng and Ningfeng Zhu and Robert Thornton",

year = "2021",

month = nov,

day = "20",

doi = "10.3847/1538-4357/ac2232",

language = "English (US)",

volume = "922",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing Ltd.",

number = "1",

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McCarrick, H, Healy, E, Ahmed, Z, Arnold, K, Atkins, Z, Austermann, JE, Bhandarkar, T, Beall, JA, Bruno, SM, Choi, SK, Connors, J, Cothard, NF, Crowley, KD, Dicker, S, Dober, B, Duell, CJ, Duff, SM, Dutcher, D, Frisch, JC, Galitzki, N, Gralla, MB, Gudmundsson, JE, Henderson, SW, Hilton, GC, Ho, SPP, Huber, ZB, Hubmayr, J, Iuliano, J, Johnson, BR, Kofman, AM, Kusaka, A, Lashner, J, Lee, AT, Li, Y, Link, MJ, Lucas, TJ, Lungu, M, Mates, JAB, McMahon, JJ, Niemack, MD, Orlowski-Scherer, J, Seibert, J, Silva-Feaver, M, Simon, SM, Staggs, S, Suzuki, A, Terasaki, T, Ullom, JN, Vavagiakis, EM, Vale, LR, Van Lanen, J, Vissers, MR, Wang, Y, Wollack, EJ, Xu, Z, Young, E, Yu, C, Zheng, K, Zhu, N & Thornton, R 2021, 'The Simons Observatory Microwave SQUID Multiplexing Detector Module Design', Astrophysical Journal, vol. 922, no. 1, 38. https://doi.org/10.3847/1538-4357/ac2232

TY - JOUR

T1 - The Simons Observatory Microwave SQUID Multiplexing Detector Module Design

AU - McCarrick, Heather

AU - Healy, Erin

AU - Ahmed, Zeeshan

AU - Arnold, Kam

AU - Atkins, Zachary

AU - Austermann, Jason E.

AU - Bhandarkar, Tanay

AU - Beall, James A.

AU - Bruno, Sarah Marie

AU - Choi, Steve K.

AU - Connors, Jake

AU - Cothard, Nicholas F.

AU - Crowley, Kevin D.

AU - Dicker, Simon

AU - Dober, Bradley

AU - Duell, Cody J.

AU - Duff, Shannon M.

AU - Dutcher, Daniel

AU - Frisch, Josef C.

AU - Galitzki, Nicholas

AU - Gralla, Megan B.

AU - Gudmundsson, Jon E.

AU - Henderson, Shawn W.

AU - Hilton, Gene C.

AU - Ho, Shuay Pwu Patty

AU - Huber, Zachary B.

AU - Hubmayr, Johannes

AU - Iuliano, Jeffrey

AU - Johnson, Bradley R.

AU - Kofman, Anna M.

AU - Kusaka, Akito

AU - Lashner, Jack

AU - Lee, Adrian T.

AU - Li, Yaqiong

AU - Link, Michael J.

AU - Lucas, Tammy J.

AU - Lungu, Marius

AU - Mates, J. A.B.

AU - McMahon, Jeffrey J.

AU - Niemack, Michael D.

AU - Orlowski-Scherer, John

AU - Seibert, Joseph

AU - Silva-Feaver, Maximiliano

AU - Simon, Sara M.

AU - Staggs, Suzanne

AU - Suzuki, Aritoki

AU - Terasaki, Tomoki

AU - Ullom, Joel N.

AU - Vavagiakis, Eve M.

AU - Vale, Leila R.

AU - Van Lanen, Jeff

AU - Vissers, Michael R.

AU - Wang, Yuhan

AU - Wollack, Edward J.

AU - Xu, Zhilei

AU - Young, Edward

AU - Yu, Cyndia

AU - Zheng, Kaiwen

AU - Zhu, Ningfeng

AU - Thornton, Robert

PY - 2021/11/20

Y1 - 2021/11/20

N2 - Advances in cosmic microwave background (CMB) science depend on increasing the number of sensitive detectors observing the sky. New instruments deploy large arrays of superconducting transition-edge sensor (TES) bolometers tiled densely into ever larger focal planes. High multiplexing factors reduce the thermal loading on the cryogenic receivers and simplify their design. We present the design of focal-plane modules with an order of magnitude higher multiplexing factor than has previously been achieved with TES bolometers. We focus on the novel cold readout component, which employs microwave SQUID multiplexing (μmux). Simons Observatory will use 49 modules containing 70,000 bolometers to make exquisitely sensitive measurements of the CMB. We validate the focal-plane module design, presenting measurements of the readout component with and without a prototype detector array of 1728 polarization-sensitive bolometers coupled to feedhorns. The readout component achieves a 95% yield and a 910 multiplexing factor. The median white noise of each readout channel is 65 pA/√Hz. This impacts the projected SO mapping speed by <8%, which is less than is assumed in the sensitivity projections. The results validate the full functionality of the module. We discuss the measured performance in the context of SO science requirements, which are exceeded.

AB - Advances in cosmic microwave background (CMB) science depend on increasing the number of sensitive detectors observing the sky. New instruments deploy large arrays of superconducting transition-edge sensor (TES) bolometers tiled densely into ever larger focal planes. High multiplexing factors reduce the thermal loading on the cryogenic receivers and simplify their design. We present the design of focal-plane modules with an order of magnitude higher multiplexing factor than has previously been achieved with TES bolometers. We focus on the novel cold readout component, which employs microwave SQUID multiplexing (μmux). Simons Observatory will use 49 modules containing 70,000 bolometers to make exquisitely sensitive measurements of the CMB. We validate the focal-plane module design, presenting measurements of the readout component with and without a prototype detector array of 1728 polarization-sensitive bolometers coupled to feedhorns. The readout component achieves a 95% yield and a 910 multiplexing factor. The median white noise of each readout channel is 65 pA/√Hz. This impacts the projected SO mapping speed by <8%, which is less than is assumed in the sensitivity projections. The results validate the full functionality of the module. We discuss the measured performance in the context of SO science requirements, which are exceeded.

UR - http://www.scopus.com/inward/record.url?scp=85120418955&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85120418955&partnerID=8YFLogxK

U2 - 10.3847/1538-4357/ac2232

DO - 10.3847/1538-4357/ac2232

M3 - Article

AN - SCOPUS:85120418955

SN - 0004-637X

VL - 922

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 38

ER -

The Simons Observatory Microwave SQUID Multiplexing Detector Module Design

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