242 citations · 808 across the 35 of their papers we have counts for
25 papers · 1 filter
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…
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…
Spatial resolution studies with the BabyIAXO Micromegas prototype
A. Quintana, J. Castel, S. Cebrián +20
The spatial resolution of the Micromegas prototype developed for the BabyIAXO experiment was evaluated using a low-energy X-ray beam at the SOLEIL synchrotron facility. BabyIAXO, c…
Development of large Micromegas readout planes for experiments searching for rare events
Hector Mirallas
The use of Time Projection Chambers (TPCs) in particle physics experiments has been growing since their invention, reaching sizes equivalent to buildings (ALICE or ATLAS at CERN).…
Using Micromegas detectors for direct dark matter searches: challenges and perspectives
K. Altenmueller, . Antolin, D. Calvet +27
Gas time projection chambers (TPCs) with Micromegas pixelated readouts are being used in dark matter searches and other rare event searches, due to their potential in terms of low…
Background discrimination with a Micromegas detector prototype and veto system for BabyIAXO
K. Altenmüller, J. F. Castel, S. Cebrián +22
In this paper we present measurements performed with a Micromegas X-ray detector setup. The detector is a prototype in the context of the BabyIAXO helioscope, which is under constr…
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…
Microbulk Micromegas in non-flammable mixtures of argon and neon at high pressure
F. J. Iguaz, T. Dafni, C. Canellas +7
We report on a systematic characterization of microbulk Micromegas readouts in high-pressure Ar+1%iC4H10 and Ne+2%iC4H10 mixtures. Experimental data on gain, electron transmission…
Recoil imaging for directional detection of dark matter, neutrinos, and physics beyond the Standard Model
C. A. J. O'Hare, D. Loomba, K. Altenmüller +164
Recoil imaging entails the detection of spatially resolved ionization tracks generated by particle interactions. This is a highly sought-after capability in many classes of detecto…
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…
Conceptual Design of BabyIAXO, the intermediate stage towards the International Axion Observatory
A. Abeln, K. Altenmüller, S. Arguedas Cuendis +123
This article describes BabyIAXO, an intermediate experimental stage of the International Axion Observatory (IAXO), proposed to be sited at DESY. IAXO is a large-scale axion heliosc…
Topological background discrimination in the PandaX-III neutrinoless double beta decay experiment
J Galan, X Chen, H Du +62
The PandaX-III experiment plans to search for neutrinoless double beta decay (0) of Xe in the China JinPing underground Laboratory (CJPL). The experiment will use a hi…
Design and commissioning of a 600 L Time Projection Chamber with Microbulk Micromegas
Heng Lin, Denis Calvet, Lei Chen +23
We report the design, construction, and initial commissioning results of a large high pressure gaseous Time Projection Chamber (TPC) with Micromegas modules for charge readout. The…
Status of the TREX-DM experiment at the Canfranc Underground Laboratory
F Aznar, J Castel, S Cebrian +11
The TREX-DM experiment is conceived to look for low mass WIMPs by means of a gas time projection chamber equipped with novel micromegas readout planes at the Canfranc Underground L…
Cosmogenic production of tritium in dark matter detectors
J. Amare, J. Castel, S. Cebrian +19
The direct detection of dark matter particles requires ultra-low background conditions at energies below a few tens of keV. Radioactive isotopes are produced via cosmogenic activat…
PandaX-III: Searching for Neutrinoless Double Beta Decay with High Pressure Xe Gas Time Projection Chambers
Xun Chen, Changbo Fu, Javier Galan +67
Searching for the Neutrinoless Double Beta Decay (NLDBD) is now regarded as the topmost promising technique to explore the nature of neutrinos after the discovery of neutrino masse…
Readout technologies for directional WIMP Dark Matter detection
J. B. R. Battat, I. G. Irastorza, A. Aleksandrov +90
The measurement of the direction of WIMP-induced nuclear recoils is a compelling but technologically challenging strategy to provide an unambiguous signature of the detection of Ga…
The potential of discrimination methods in a high pressure xenon TPC for the search of the neutrinoless double-beta decay of Xe-136
F. J. Iguaz, F. Aznar, J. F. Castel +8
In the search for the neutrinoless double beta decay of Xe, a high pressure xenon time projection chamber (HPXe-TPC) has two advantages over liquid xenon TPCs: a better ene…
Micromegas for dark matter searches: CAST/IAXO & TREX-DM
J. G. Garza, S. Aune, J. F. Castel +14
The most compelling candidates for Dark Matter to day are WIMPs and axions. The applicability of gasesous Time Projection Chambers (TPCs) with Micromesh Gas Structures (Micromegas)…
Gaseous time projection chambers for rare event detection: Results from the T-REX project. I. Double beta decay
I. G. Irastorza, F. Aznar, J. Castel +13
As part of the T-REX project, a number of R&D and prototyping activities have been carried out during the last years to explore the applicability of gaseous Micromegas-read TPCs in…
Gaseous time projection chambers for rare event detection: Results from the T-REX project. II. Dark matter
I. G. Irastorza, F. Aznar, J. Castel +13
As part of the T-REX project, a number of R&D and prototyping activities have been carried out during the last years to explore the applicability of Micromegas-read gaseous TPCs in…
A Micromegas-based low-background x-ray detector coupled to a slumped-glass telescope for axion research
F. Aznar, J. Castel, F. E. Christensen +18
We report on the design, construction and operation of a low background x-ray detection line composed of a shielded Micromegas (micromesh gaseous structure) detector of the microbu…
Modelling the behaviour of microbulk Micromegas in Xenon/trimethylamine gas
E. Ruiz-Choliz, D. Gonzalez-Diaz, A. Diago +9
We model the response of a state of the art micro-hole single-stage charge amplication device (`microbulk' Micromegas) in a gaseous atmosphere consisting of Xenon/trimethylamine at…
Low Background Micromegas in CAST
J. G. Garza, S. Aune, D. Calvet +22
Solar axions could be converted into x-rays inside the strong magnetic field of an axion helioscope, triggering the detection of this elusive particle. Low background x-ray detecto…