activity
20222026
most citedA new upper limit on the axion-photon coupling with an extended CAST run with a Xe-based Micromegas detector

56 citations · 94 across the 9 of their papers we have counts for

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5 papers · 1 filter

physics.ins-det2026

Improvement and assessment of the radiopurity of Micromegas readout planes

Juan Castel, Susana Cebrian, Theopisti Dafni +17

Micromesh Gas Structures (Micromegas) as readout of gaseous Time Projection Chambers (TPCs) are being considered in experiments investigating rare phenomena, like the nuclear doubl…

physics.ins-det2025

Low-energy threshold demonstration for dark matter searches in TREX-DM with an Ar source produced at CNA HiSPANoS

J. Castel, S. Cebrián, T. Dafni +16

We report on the successful implementation of an Ar calibration source in the TREX-DM detector, a high-pressure time projection chamber designed for low-mass dark matter sea…

physics.ins-det2023★ 28 cited

A proposal for a low-frequency axion search in the 1-2 eV range and below with the BabyIAXO magnet

S. Ahyoune, A. Álvarez Melcón, S. Arguedas Cuendis +27

In the near future BabyIAXO will be the most powerful axion helioscope, relying on a custom-made magnet of two bores of 70 cm diameter and 10 m long, with a total available magneti…

physics.ins-det2022★ 7 cited

Purification Efficiency and Radon Emanation of Gas Purifiers used with Pure and Binary Gas Mixtures for Gaseous Dark Matter Detectors

K., Altenmüller, J. F. Castel +22

Rare event searches require extreme radiopurity in all detector components. This includes the active medium, which in the case of gaseous detectors, is the operating gas. The gases…

physics.ins-det2022★ 3 cited

AlphaCAMM, a Micromegas-based camera for high-sensitivity screening of alpha surface contamination

Konrad Altenmüller, Juan F. Castel, Susana Cebrián +12

Surface contamination of Rn progeny from the U natural decay chain is one of the most difficult background contributions to measure in rare event searches experimen…