A cryogenic rotation stage with a large clear aperture for the half-wave plates in the Spider instrument

Sean Bryan; Peter Ade; Mandana Amiri; Steven Benton; Richard Bihary; James Bock; J. Richard Bond; H. Cynthia Chiang; Carlo Contaldi; Brendan Crill; Olivier Dore; Benjamin Elder; Jeffrey Filippini; Aurelien Fraisse; Anne Gambrel; Natalie Gandilo; Jon Gudmundsson; Matthew Hasselfield; Mark Halpern; Gene Hilton; Warren Holmes; Viktor Hristov; Kent Irwin; William Jones; Zigmund Kermish; Craig Lawrie; Carrie MacTavish; Peter Mason; Krikor Megerian; Lorenzo Moncelsi; Thomas Montroy; Tracy Morford; Johanna Nagy; C. Barth Netterfield; Ivan Padilla; Alexandra S. Rahlin; Carl Reintsema; Daniel C. Riley; John Ruhl; Marcus Runyan; Benjamin Saliwanchik; Jamil Shariff; Juan Soler; Amy Trangsrud; Carole Tucker; Rebecca Tucker; Anthony Turner; Shyang Wen; Donald Wiebe; Edward Young

doi:10.1063/1.4939435

A cryogenic rotation stage with a large clear aperture for the half-wave plates in the Spider instrument

Sean Bryan, Peter Ade, Mandana Amiri, Steven Benton, Richard Bihary, James Bock, J. Richard Bond, H. Cynthia Chiang, Carlo Contaldi, Brendan Crill, Olivier Dore, Benjamin Elder, Jeffrey Filippini, Aurelien Fraisse, Anne Gambrel, Natalie Gandilo, Jon Gudmundsson, Matthew Hasselfield, Mark Halpern, Gene HiltonWarren Holmes, Viktor Hristov, Kent Irwin, William Jones, Zigmund Kermish, Craig Lawrie, Carrie MacTavish, Peter Mason, Krikor Megerian, Lorenzo Moncelsi, Thomas Montroy, Tracy Morford, Johanna Nagy, C. Barth Netterfield, Ivan Padilla, Alexandra S. Rahlin, Carl Reintsema, Daniel C. Riley, John Ruhl, Marcus Runyan, Benjamin Saliwanchik, Jamil Shariff, Juan Soler, Amy Trangsrud, Carole Tucker, Rebecca Tucker, Anthony Turner, Shyang Wen, Donald Wiebe, Edward Young

Earth and Space Exploration, School of (SESE)

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

20 Scopus citations

Abstract

We describe the cryogenic half-wave plate rotation mechanisms built for and used in Spider, a polarization-sensitive balloon-borne telescope array that observed the cosmic microwave background at 95 GHz and 150 GHz during a stratospheric balloon flight from Antarctica in January 2015. The mechanisms operate at liquid helium temperature in flight. A three-point contact design keeps the mechanical bearings relatively small but allows for a large (305 mm) diameter clear aperture. A worm gear driven by a cryogenic stepper motor allows for precise positioning and prevents undesired rotation when the motors are depowered. A custom-built optical encoder system monitors the bearing angle to an absolute accuracy of ±0.1⁰. The system performed well in Spider during its successful 16 day flight.

Original language	English (US)
Article number	014501
Journal	Review of Scientific Instruments
Volume	87
Issue number	1
DOIs	https://doi.org/10.1063/1.4939435
State	Published - Jan 1 2016

ASJC Scopus subject areas

Instrumentation

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10.1063/1.4939435

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Bryan, S., Ade, P., Amiri, M., Benton, S., Bihary, R., Bock, J., Bond, J. R., Chiang, H. C., Contaldi, C., Crill, B., Dore, O., Elder, B., Filippini, J., Fraisse, A., Gambrel, A., Gandilo, N., Gudmundsson, J., Hasselfield, M., Halpern, M., ... Young, E. (2016). A cryogenic rotation stage with a large clear aperture for the half-wave plates in the Spider instrument. Review of Scientific Instruments, 87(1), Article 014501. https://doi.org/10.1063/1.4939435

Bryan, S, Ade, P, Amiri, M, Benton, S, Bihary, R, Bock, J, Bond, JR, Chiang, HC, Contaldi, C, Crill, B, Dore, O, Elder, B, Filippini, J, Fraisse, A, Gambrel, A, Gandilo, N, Gudmundsson, J, Hasselfield, M, Halpern, M, Hilton, G, Holmes, W, Hristov, V, Irwin, K, Jones, W, Kermish, Z, Lawrie, C, MacTavish, C, Mason, P, Megerian, K, Moncelsi, L, Montroy, T, Morford, T, Nagy, J, Netterfield, CB, Padilla, I, Rahlin, AS, Reintsema, C, Riley, DC, Ruhl, J, Runyan, M, Saliwanchik, B, Shariff, J, Soler, J, Trangsrud, A, Tucker, C, Tucker, R, Turner, A, Wen, S, Wiebe, D & Young, E 2016, 'A cryogenic rotation stage with a large clear aperture for the half-wave plates in the Spider instrument', Review of Scientific Instruments, vol. 87, no. 1, 014501. https://doi.org/10.1063/1.4939435

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title = "A cryogenic rotation stage with a large clear aperture for the half-wave plates in the Spider instrument",

abstract = "We describe the cryogenic half-wave plate rotation mechanisms built for and used in Spider, a polarization-sensitive balloon-borne telescope array that observed the cosmic microwave background at 95 GHz and 150 GHz during a stratospheric balloon flight from Antarctica in January 2015. The mechanisms operate at liquid helium temperature in flight. A three-point contact design keeps the mechanical bearings relatively small but allows for a large (305 mm) diameter clear aperture. A worm gear driven by a cryogenic stepper motor allows for precise positioning and prevents undesired rotation when the motors are depowered. A custom-built optical encoder system monitors the bearing angle to an absolute accuracy of ±0.10. The system performed well in Spider during its successful 16 day flight.",

author = "Sean Bryan and Peter Ade and Mandana Amiri and Steven Benton and Richard Bihary and James Bock and Bond, {J. Richard} and Chiang, {H. Cynthia} and Carlo Contaldi and Brendan Crill and Olivier Dore and Benjamin Elder and Jeffrey Filippini and Aurelien Fraisse and Anne Gambrel and Natalie Gandilo and Jon Gudmundsson and Matthew Hasselfield and Mark Halpern and Gene Hilton and Warren Holmes and Viktor Hristov and Kent Irwin and William Jones and Zigmund Kermish and Craig Lawrie and Carrie MacTavish and Peter Mason and Krikor Megerian and Lorenzo Moncelsi and Thomas Montroy and Tracy Morford and Johanna Nagy and Netterfield, {C. Barth} and Ivan Padilla and Rahlin, {Alexandra S.} and Carl Reintsema and Riley, {Daniel C.} and John Ruhl and Marcus Runyan and Benjamin Saliwanchik and Jamil Shariff and Juan Soler and Amy Trangsrud and Carole Tucker and Rebecca Tucker and Anthony Turner and Shyang Wen and Donald Wiebe and Edward Young",

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AU - Bryan, Sean

AU - Ade, Peter

AU - Amiri, Mandana

AU - Benton, Steven

AU - Bihary, Richard

AU - Bock, James

AU - Bond, J. Richard

AU - Chiang, H. Cynthia

AU - Contaldi, Carlo

AU - Crill, Brendan

AU - Dore, Olivier

AU - Elder, Benjamin

AU - Filippini, Jeffrey

AU - Fraisse, Aurelien

AU - Gambrel, Anne

AU - Gandilo, Natalie

AU - Gudmundsson, Jon

AU - Hasselfield, Matthew

AU - Halpern, Mark

AU - Hilton, Gene

AU - Holmes, Warren

AU - Hristov, Viktor

AU - Irwin, Kent

AU - Jones, William

AU - Kermish, Zigmund

AU - Lawrie, Craig

AU - MacTavish, Carrie

AU - Mason, Peter

AU - Megerian, Krikor

AU - Moncelsi, Lorenzo

AU - Montroy, Thomas

AU - Morford, Tracy

AU - Nagy, Johanna

AU - Netterfield, C. Barth

AU - Padilla, Ivan

AU - Rahlin, Alexandra S.

AU - Reintsema, Carl

AU - Riley, Daniel C.

AU - Ruhl, John

AU - Runyan, Marcus

AU - Saliwanchik, Benjamin

AU - Shariff, Jamil

AU - Soler, Juan

AU - Trangsrud, Amy

AU - Tucker, Carole

AU - Tucker, Rebecca

AU - Turner, Anthony

AU - Wen, Shyang

AU - Wiebe, Donald

AU - Young, Edward

PY - 2016/1/1

Y1 - 2016/1/1

N2 - We describe the cryogenic half-wave plate rotation mechanisms built for and used in Spider, a polarization-sensitive balloon-borne telescope array that observed the cosmic microwave background at 95 GHz and 150 GHz during a stratospheric balloon flight from Antarctica in January 2015. The mechanisms operate at liquid helium temperature in flight. A three-point contact design keeps the mechanical bearings relatively small but allows for a large (305 mm) diameter clear aperture. A worm gear driven by a cryogenic stepper motor allows for precise positioning and prevents undesired rotation when the motors are depowered. A custom-built optical encoder system monitors the bearing angle to an absolute accuracy of ±0.10. The system performed well in Spider during its successful 16 day flight.

AB - We describe the cryogenic half-wave plate rotation mechanisms built for and used in Spider, a polarization-sensitive balloon-borne telescope array that observed the cosmic microwave background at 95 GHz and 150 GHz during a stratospheric balloon flight from Antarctica in January 2015. The mechanisms operate at liquid helium temperature in flight. A three-point contact design keeps the mechanical bearings relatively small but allows for a large (305 mm) diameter clear aperture. A worm gear driven by a cryogenic stepper motor allows for precise positioning and prevents undesired rotation when the motors are depowered. A custom-built optical encoder system monitors the bearing angle to an absolute accuracy of ±0.10. The system performed well in Spider during its successful 16 day flight.

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ER -

A cryogenic rotation stage with a large clear aperture for the half-wave plates in the Spider instrument

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