Engineering of titanium transition edge sensor wafers for the BA4 90/150 receiver of BICEP array [Poster]

Patel, Anika A., Ade, P. A. R. ORCID: https://orcid.org/0000-0002-5127-0401, Ahmed, Zeeshan, Amiri, Mandana, Barkats, Denis, Sudiwala, Rashmi ORCID: https://orcid.org/0000-0003-3240-5304 and Tucker, Carole ORCID: https://orcid.org/0000-0002-1851-3918 2026. Engineering of titanium transition edge sensor wafers for the BA4 90/150 receiver of BICEP array [Poster]. Proceedings of SPIE 14156 , 141. 10.1117/12.3104107

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Abstract

BA4-90/150, the fourth receiver in the BICEP Array series, is a dichroic 90/150 GHz instrument targeting the frequency space where sensitivity to the CMB polarization is maximized and is central to achieving σ(r) on the order of 0.001 with SPT delensing. Set for deployment in the 2026–2027 austral summer, it is projected to be the most sensitive receiver in the experiment deployed to date and introduces key innovations requiring tighter control of systematics, including optical and electrical crosstalk. Prototype titanium transition edge sensor wafers aim to reduce noise and inform the final integrated wafer for full receiver commissioning.

Item Type:	Short Communication
Date Type:	Publication
Status:	Published
Schools:	Schools > Physics and Astronomy
Additional Information:	Full author list can be seen here - https://doi.org/10.1117/12.3104107
Publisher:	Society of Photo-optical Instrumentation Engineers
ISSN:	0277-786X
Last Modified:	02 Aug 2026 10:22
URI:	https://orca.cardiff.ac.uk/id/eprint/188084

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