Characterization of prototype highly-multiplexed, multi-chroic pixels for balloon-borne platforms (Conference Presentation)

Karl Young; François Aubin; Adrian Lee; Aritoki Suzuki; Benjamin Westbrook; Shaul Hanany; Qi Wen; Bradley Johnson

doi:10.1117/12.2314235

10 July 2018 Characterization of prototype highly-multiplexed, multi-chroic pixels for balloon-borne platforms (Conference Presentation)

Karl Young, François Aubin, Adrian Lee, Aritoki Suzuki, Benjamin Westbrook, Shaul Hanany, Qi Wen, Bradley Johnson

Author Affiliations +

Proceedings Volume 10708, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX; 107080C (2018) https://doi.org/10.1117/12.2314235
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

EBEX-IDS is a balloon-borne polarimeter designed to characterize the polarization of foregrounds and to detect the primordial gravity waves through their B-mode signature on the polarization of the cosmic microwave background (CMB). EBEX-IDS will operate 20,562 transition edge sensor (TES) bolometers distributed among 3,427 polarization sensitive sinuous antenna multichroic pixels (SAMP) to observe the CMB in 7 frequency bands between 150 and 360 GHz. In order to maximize the sensitivity of the telescope and take advantage of the lower power emission and absorption of the atmosphere at float, we decrease the average thermal conductance of the bolometers by a factor of 10 compared to ground-based telescopes and observe within higher frequency bands. We use a meandered design with thinner legs to reduce the thermal conductance. We present prototype pixels which improve the technology readiness for the use of SAMPs in balloon and satellite platforms. We fabricated and tested 150/250/320, 180/250/320 and 220/280/350 GHz SAMPs suitable for EBEX-IDS with specified average thermal conductance of 9 pW/K designed to absorb as little as 0.2 pW at 150 GHz. We report on the characterization of the average thermal conductance, the critical temperature and the time-constant of these pixels as well as the measurement of their noise and optical properties. We also report on the fabrication and testing of a new inductor-capacitor chip operated at 4 K to read out up to 105 bolometers with two wires using the frequency domain multiplexing ICE readout boards. This factor represents an increase of 60% compared to the highest factor used to date with this readout system.

Conference Presentation

Citation Download Citation

Karl Young, François Aubin, Adrian Lee, Aritoki Suzuki, Benjamin Westbrook, Shaul Hanany, Qi Wen, and Bradley Johnson "Characterization of prototype highly-multiplexed, multi-chroic pixels for balloon-borne platforms (Conference Presentation)", Proc. SPIE 10708, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX, 107080C (10 July 2018); https://doi.org/10.1117/12.2314235

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

Prototyping

Bolometers

Polarization

Telescopes

Absorption

Antennas

Atmospheric sensing

Show All Keywords

Keywords/Phrases

Search In:

Publication Years