Conceptual design of the modular detector and readout system for the CMB-S4 survey experiment

Conference · Tue Aug 30 20:00:00 EDT 2022 · Proc.SPIE Int.Soc.Opt.Eng.

DOI:https://doi.org/10.1117/12.2630494· OSTI ID:1881936

Barron, D. R. ^[1]; Ahmed, Z. ^[2]; Aguilar, J. ^[3]; Anderson, A. J. ^[4]; Baker, C. F. ^[5]; Barry, P. S. ^[6]; Beall, J. A. ^[7]; Bender, A. N. ^[8]; Benson, B. A. ^[4]; Besuner, R. W. ^[3]; Cecil, T. W. ^[9]; Chang, C. L. ^[8]; Chapman, S. C. ^[10]; Chesmore, G. E. ^[11]; Derylo, G. ^[12]; Doriese, W. B. ^[7]; Duff, S. M. ^[7]; Elleflot, T. ^[3]; Filippini, J. P. ^[5]; Flaugher, B. ^[12] ; Gomez, J. G. ^[13]; Grimes, P. K. ^[14]; Gualtieri, R. ^[9]; Gullett, I. ^[13]; Haller, G. ^[15]; Henderson, S. W. ^[2]; Henke, D. ^[16]; Herbst, R. ^[15]; Huber, A. I. ^[17]; Hubmayr, J. ^[7]; Jonas, M. ^[12]; Joseph, J. ^[3]; King, C. L. ^[18]; Kovac, J. M. ^[14]; Kubik, D. ^[12]; Lisovenko, M. ^[9]; McMahon, J. J. ^[19]; Moncelsi, L. ^[20]; Nagy, J. M. ^[21]; Osherson, B. ^[5]; Reese, B. ^[15]; Ruhl, J. E. ^[13]; Sapozhnikov, L. ^[15]; Schillaci, A. ^[20]; Simon, S. M. ^[12]; Suzuki, A. ^[3]; Wang, G. ^[9]; Westbrook, B. ^[22]; Yefremenko, V. ^[9]; Zhang, J. ^[9]

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1. New Mexico U.
2. Oxford U., Theor. Phys.; SLAC
3. LBL, Berkeley
4. Fermilab; Chicago U.
5. Illinois U., Urbana
6. Argonne; Cardiff U.
7. NIST, Boulder
8. Argonne; Chicago U.
9. Argonne
10. Dalhousie U., Math. Dept.; NRC-HIA, Victoria
11. Chicago U.
12. Fermilab
13. Case Western Reserve U.
14. Harvard-Smithsonian Ctr. Astrophys.
15. SLAC
16. NRC-HIA, Victoria
17. Victoria U.
18. Washington U., St. Louis
19. LBL, Berkeley; Chicago U.; Chicago U., EFI
20. Caltech, Pasadena (main); LIGO Lab., Caltech
21. Washington U., St. Louis; McDonnell Ctr. Space Sci.
22. UC, Berkeley

We present the conceptual design of the modular detector and readout system for the Cosmic Microwave Background – Stage four (CMB-S4) ground-based survey experiment. CMB-S4 will map the cosmic microwave background (CMB) and the millimeter-wave sky to unprecedented sensitivity, using 500,000 superconducting detectors observing from Chile and Antarctica to map over 60% of the sky. The fundamental building block of the detector and readout system is a detector module package operated at 100 mK, which is connected to a readout and amplification chain that carries signals out to room temperature. It uses arrays of feedhorn-coupled orthomode transducers (OMT) that collect optical power from the sky onto dc-voltage-biased transition-edge sensor (TES) bolometers. The resulting current signal in the TESs is then amplified by a two-stage cryogenic Superconducting Quantum Interference Device (SQUID) system with a time-division multiplexer to reduce wire count, and matching room-temperature electronics to condition and transmit signals to the data acquisition system. Sensitivity and systematics requirements are being developed for the detector and readout system over wide range of observing bands (20 to 300 GHz) and optical powers to accomplish CMB-S4’s science goals. While the design incorporates the successes of previous generations of CMB instruments, CMB-S4 requires an order of magnitude more detectors than any prior experiment. This requires fabrication of complex superconducting circuits on over 10 m2 of silicon, as well as significant amounts of precision wiring, assembly and cryogenic testing

• Research Organization: LIGO Lab., Caltech; Oxford U., Theor. Phys.; Argonne National Laboratory (ANL), Argonne, IL (United States); Case Western Reserve U.; Victoria U.; Chicago U., EFI; Dalhousie U., Math. Dept.; SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Cardiff U.; Washington U., St. Louis; NIST, Boulder; Harvard-Smithsonian Ctr. Astrophys.; NRC-HIA, Victoria; Chicago U.; Illinois U., Urbana; Caltech, Pasadena (main); McDonnell Ctr. Space Sci.; Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); New Mexico U.; UC, Berkeley
• Sponsoring Organization: US Department of Energy
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1881936
• Report Number(s): FERMILAB-CONF-22-607-PPD; oai:inspirehep.net:2132350; arXiv:2208.02284
• Journal Information: Proc.SPIE Int.Soc.Opt.Eng., Journal Name: Proc.SPIE Int.Soc.Opt.Eng.
• Country of Publication: United States
• Language: English

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