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

Research output: Contribution to journalArticle

11 Citations (Scopus)

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 languageEnglish (US)
Article number014501
JournalReview of Scientific Instruments
Volume87
Issue number1
DOIs
StatePublished - Jan 1 2016

Fingerprint

Bearings (structural)
spiders
Balloons
Cryogenics
cryogenics
apertures
flight
Worm gears
balloon flight
worms
Upper atmosphere
Point contacts
Antarctic regions
balloons
coders
liquid helium
Telescopes
Optical systems
positioning
Helium

All Science Journal Classification (ASJC) codes

  • Instrumentation

Cite this

Bryan, Sean ; Ade, Peter ; Amiri, Mandana ; Benton, Steven ; Bihary, Richard ; Bock, James ; Bond, J. Richard ; Chiang, H. Cynthia ; Contaldi, Carlo ; Crill, Brendan ; Dore, Olivier ; Elder, Benjamin ; Filippini, Jeffrey ; Fraisse, Aurelien ; Gambrel, Anne ; Gandilo, Natalie ; Gudmundsson, Jon ; Hasselfield, Matthew ; Halpern, Mark ; Hilton, Gene ; Holmes, Warren ; Hristov, Viktor ; Irwin, Kent ; Jones, William ; Kermish, Zigmund ; Lawrie, Craig ; MacTavish, Carrie ; Mason, Peter ; Megerian, Krikor ; Moncelsi, Lorenzo ; Montroy, Thomas ; Morford, Tracy ; Nagy, Johanna ; Netterfield, C. Barth ; Padilla, Ivan ; Rahlin, Alexandra S. ; Reintsema, Carl ; Riley, Daniel C. ; Ruhl, John ; Runyan, Marcus ; Saliwanchik, Benjamin ; Shariff, Jamil ; Soler, Juan ; Trangsrud, Amy ; Tucker, Carole ; Tucker, Rebecca ; Turner, Anthony ; Wen, Shyang ; Wiebe, Donald ; Young, Edward. / A cryogenic rotation stage with a large clear aperture for the half-wave plates in the Spider instrument. In: Review of Scientific Instruments. 2016 ; Vol. 87, No. 1.
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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.",
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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

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

In: Review of Scientific Instruments, Vol. 87, No. 1, 014501, 01.01.2016.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A cryogenic rotation stage with a large clear aperture for the half-wave plates in the Spider instrument

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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JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

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