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MUSTANG 2: A Large Focal Plane Array for the 100 m Green Bank Telescope

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Abstract

This paper describes MUSTANG 2, a 338 element focal plane array that is being built for the Green Bank Telescope. Each element consists of a profiled feedhorn coupled to two transition edge sensor bolometers, one for each polarization. Initial deployment will be with 32 detectors, but once fully populated, MUSTANG 2 will be capable of mapping a \(8'\times 8'\) area to \(23~\upmu \)Jy in 1 h with good image fidelity on angular scales from \(9''\) to \(6'\). As well as an instrument overview, the choice of bandpass and the design of the feeds, detectors and readout are given.

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References

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Acknowledgments

We would like to thank all those in the machine shops at the University of Pennsylvania, Green Bank, and Precision Cryogenics who turned our designs into real parts. Many others at Green Bank have offered us advice and helped out with construction and testing. Funding for this project has been provided by the NSF with additional support from NIST and NASA. Filter development was funded by the UK STFC.

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Authors and Affiliations

  1. Department of Physics and Astronomy, University of Pennsylvania, 209 S. 33rd St, Philadelphia, PA, 19104, USA

    S. R. Dicker, J. Aguirre, M. J. Devlin, B. Dober, M. Rosenman & A. H. Young

  2. Department of Physics and Astronomy, Cardiff University, The Parade, Cardiff, CF24 3AA, UK

    P. A. R. Ade & C. Tucker

  3. NIST, 325 Broadway, Boulder, CO , 80305, USA

    J. A. Brevik, H. M. Cho, G. Hilton, K. D. Irwin & L. Vale

  4. Department of Physics, University of Michigan, 450 Church St, Ann Arbor, MI , 48109, USA

    R. Datta & J. J. McMahon

  5. NRAO, Green Bank, WV , 24944, USA

    D. Egan, J. Ford, P. Ford, P. Marganian, M. Mello, S. White & M. Whitehead

  6. NRAO, 520 Edgemont Rd, Charlotesville, VA , 22903, USA

    B. S. Mason

  7. Naval Research Laboratory, 4555 Overlook Ave. S.W., Washington, DC , 20375, USA

    T. Mroczkowski

Authors
  1. S. R. Dicker
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  2. P. A. R. Ade
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  3. J. Aguirre
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  4. J. A. Brevik
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  5. H. M. Cho
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  6. R. Datta
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  7. M. J. Devlin
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  8. B. Dober
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  9. D. Egan
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  10. J. Ford
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  11. P. Ford
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  12. G. Hilton
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  13. K. D. Irwin
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  14. B. S. Mason
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  15. P. Marganian
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  16. M. Mello
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  17. J. J. McMahon
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  18. T. Mroczkowski
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  19. M. Rosenman
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  20. C. Tucker
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  21. L. Vale
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  22. S. White
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  23. M. Whitehead
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  24. A. H. Young
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Corresponding author

Correspondence to S. R. Dicker.

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Dicker, S.R., Ade, P.A.R., Aguirre, J. et al. MUSTANG 2: A Large Focal Plane Array for the 100 m Green Bank Telescope. J Low Temp Phys 176, 808–814 (2014). https://doi.org/10.1007/s10909-013-1070-8

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  • DOI: https://doi.org/10.1007/s10909-013-1070-8

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