Towards smaller gap microbulks
Author(s) -
D. Attié,
L. Boilevin-Kayl,
T. Dafní,
E. Ferrer-Ribas,
S. Ferry,
Y. Giomataris,
D C Herrera,
F.J. Iguaz,
I.G. Irastorza,
M. Kebbiri,
T. Papaevangelou,
R. De Oliveira,
L. Seguí,
A. Tomás
Publication year - 2014
Publication title -
journal of instrumentation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.741
H-Index - 84
ISSN - 1748-0221
DOI - 10.1088/1748-0221/9/04/c04013
Subject(s) - micromegas detector , detector , physics , dark matter , event (particle physics) , optics , particle physics , astrophysics
Small gap Micromegas detectors ( < 50 μm) are expected to be optimal for high pressure applications. Combining the microbulk manufacturing technique with a small gap can result in attractive detectors for rare event detection, in particular double beta decay or dark matter searches. We present novel results obtained with small gap microbulks (25 and 12.5 μm) that have been manufactured recently. For the first time for this type of detectors, we show experimentally that for each amplification gap there is an optimal pressure and that smaller gaps are more suitable for higher pressures
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