181 citations · 572 across the 24 of their papers we have counts for
25 papers
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…
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…
TREX-DM: a low background Micromegas-based TPC for low-mass WIMP detection
F. J. Iguaz, J. G. Garza, F. Aznar +8
Dark Matter experiments are recently focusing their detection techniques in low-mass WIMPs, which requires the use of light elements and low energy threshold. In this context, we d…
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…
TREX-DM: a low-background Micromegas-based TPC for low-mass WIMP detection
F. J. Iguaz, J. G. Garza, F. Aznar +8
If Dark Matter is made of Weakly Interacting Massive Particles (WIMPs) with masses below 20 GeV, the corresponding nuclear recoils in mainstream WIMP experiments are of energ…
Lessons from the operation of the "Penning-Fluorescent" TPC and prospects
Diego Gonzalez-Diaz, F. Aznar, J. Castel +15
We have recently reported the development of a new type of high-pressure Xenon time projection chamber operated with an ultra-low diffusion mixture and that simultaneously displays…
TREX-DM: a low background Micromegas-based TPC for low mass WIMP detection
F. J. Iguaz, J. G. Garza, F. Aznar +11
Dark Matter experiments are recently focusing their detection techniques in low-mass WIMPs, which requires the use of light elements and low energy threshold. In this context, we p…
Study of scintillation in natural and synthetic quartz and methacrylate
J. Amare, S. Borjabad, S. Cebrian +15
Samples from different materials typically used as optical windows or light guides in scintillation detectors were studied in a very low background environment, at the Canfranc Und…
X-ray detection with Micromegas with background levels below 10 keVcms
S. Aune, F. Aznar, D. Calvet +26
Micromegas detectors are an optimum technological choice for the detection of low energy x-rays. The low background techniques applied to these detectors yielded remarkable backgro…
Description and commissioning of NEXT-MM prototype: first results from operation in a Xenon-Trimethylamine gas mixture
NEXT Collaboration, V. Álvarez, F. Aznar +82
A technical description of NEXT-MM and its commissioning and first performance is reported. Having an active volume of ~35 cm drift 28 cm diameter, it constitutes the larg…
Characterization of a medium size Xe/TMA TPC instrumented with microbulk Micromegas, using low-energy -rays
The NEXT collaboration, V. Alvarez, F. I. G. M. Borges +87
NEXT-MM is a general-purpose high pressure (10 bar, l active volume) Xenon-based TPC, read out in charge mode with an 8 cm 8 cm-segmented 700 cm plane (1152 ch…
Pattern recognition techniques to reduce backgrounds in the search for the 136Xe double beta decay with gaseous TPCs
F. J. Iguaz, S. Cebrian, T. Dafni +6
The observation of the neutrinoless double beta decay may provide essential information on the nature of neutrinos. Among the current experimental approaches, a high pressure gaseo…
Operation and first results of the NEXT-DEMO prototype using a silicon photomultiplier tracking array
The NEXT Collaboration, V. Álvarez, F. I. G. Borges +75
NEXT-DEMO is a high-pressure xenon gas TPC which acts as a technological test-bed and demonstrator for the NEXT-100 neutrinoless double beta decay experiment. In its current config…
Pattern recognition of Xe double beta decay events and background discrimination in a high pressure Xenon TPC
S Cebrian, T Dafni, H Gomez +6
High pressure gas detectors offer advantages for the detection of rare events, where background reduction is crucial. For the neutrinoless double beta decay of 136Xe a high pressur…
IAXO - The International Axion Observatory
J. K. Vogel, F. T. Avignone, G. Cantatore +61
The International Axion Observatory (IAXO) is a next generation axion helioscope aiming at a sensitivity to the axion-photon coupling of a few 10^{-12} GeV^{-1}, i.e. 1-1.5 orders…
Ionization and scintillation response of high-pressure xenon gas to alpha particles
NEXT Collaboration, V. Álvarez, F. I. G. M. Borges +70
High-pressure xenon gas is an attractive detection medium for a variety of applications in fundamental and applied physics. In this paper we study the ionization and scintillation…
Results and perspectives of the solar axion search with the CAST experiment
E. Ferrer-Ribas, M. Arik, S. Aune +69
The status of the solar axion search with the CERN Axion Solar Telescope (CAST) will be presented. Recent results obtained by the use of He as a buffer gas has allowed us to ex…
CAST microbulk micromegas in the Canfranc Underground Laboratory
A. Tomás, S. Aune, T. Dafni +19
During the last taking data campaigns of the CAST experiment, the micromegas detectors have achieved background levels of keVcms betw…
Design and characterization of the SiPM tracking system of NEXT-DEMO, a demonstrator prototype of the NEXT-100 experiment
NEXT Collaboration, V. Álvarez, M. Ball +86
NEXT-100 experiment aims at searching the neutrinoless double-beta decay of the Xe-136 isotope using a TPC filled with a 100 kg of high-pressure gaseous xenon, with 90% isotopic en…
SiPMs coated with TPB : coating protocol and characterization for NEXT
V. Álvarez, J. Agramunt, M. Ball +91
Silicon photomultipliers (SiPM) are the photon detectors chosen for the tracking readout in NEXT, a neutrinoless ββ decay experiment which uses a high pressure gaseous xenon time p…
Status of R&D on Micromegas for Rare Event Searches: The T-REX project
I. G. Irastorza, J. Castel, S. Cebrián +24
The T-REX project aims at developing novel readout techniques for Time Projection Chambers in experiments searching for rare events. The enhanced performance of the latest Micromeg…
Towards a new generation axion helioscope
I. G. Irastorza, F. T. Avignone, S. Caspi +33
We study the feasibility of a new generation axion helioscope, the most ambitious and promising detector of solar axions to date. We show that large improvements in magnetic field…
Micromegas readouts for double beta decay searches
S. Cebrián, T. Dafni, E. Ferrer-Ribas +11
Double beta decay experiments are one of the most active research topics in Neutrino Physics. The measurement of the neutrinoless mode could give unique information on…