Pith. sign in

REVIEW 1 cited by

QUBIC VII: The feedhorn-switch system of the technological demonstrator

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2008.12721 v3 pith:2WL2KKKI submitted 2020-08-28 astro-ph.IM physics.ins-det

F. Cavaliere , A. Mennella , M. Zannoni , P. Battaglia , E.S. Battistelli , D. Burke , G. D'Alessandro , P. de Bernardis
show 123 more authors
This is my paper · ORCID
classification astro-ph.IMphysics.ins-det
keywords systemqubicback-to-backdemonstratorfeedhorn-switchhorn-switchhornsinstrument
verification ladder T0 review T1 audit T2 compute T3 formal

Signed reviews

No signed human review yet.

0 comments
abstract

We present the design, manufacturing and performance of the horn-switch system developed for the technological demonstrator of QUBIC (the $Q$\&$U$ Bolometric Interferometer for Cosmology). This system is constituted of 64 back-to-back dual-band (150\,GHz and 220\,GHz) corrugated feed-horns interspersed with mechanical switches used to select desired baselines during the instrument self-calibration. We manufactured the horns in aluminum platelets milled by photo-chemical etching and mechanically tightened with screws. The switches are based on steel blades that open and close the wave-guide between the back-to-back horns and are operated by miniaturized electromagnets. We also show the current development status of the feedhorn-switch system for the QUBIC full instrument, based on an array of 400 horn-switch assemblies.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. A chemically etched D-band waveguide orthomode transducer for CMB measurements

    astro-ph.IM 2025-05 conditional novelty 6.0 of 10

    Chemical etching can produce a working 130-170 GHz waveguide orthomode transducer, but measured transmission loss (-1.5 to -2 dB) exceeds the simulated -0.5 dB because of etched-surface roughness.

Pith tools