Development and performance of Microbulk Micromegas detectors

By S. Andriamonje, D. Attié, E. Berthoumieux, M. Calviani, P. Colas, T. Dafni, G. Fanourakis, E. Ferrer-Ribas, J. Galán, T. Geralis and 13 more. 2010

150 citations recorded by the source corpus.

A new Micromegas manufacturing technique, based on kapton etching technology, has been developed recently, resulting in further improvement of the characteristics of the detector, such as uniformity and stability. Excellent energy resolution has been obtained, reaching 11% FWHM for the 5.9 keV photon peak of the 55Fe X-ray source and 1.8% FWHM (with possible evidence of less than 1%) for the 5.5 MeV alpha peak of the 241Am source. The new Microbulk detector shows several advantages like flexible structure, low material and high radio-purity, opening thus new possibilities for both accelerator and low counting-rate experiments. The detector has already been used in CAST and n-TOF, while it is being tested for future neutrinoless double-beta decay experiments like NEXT. Details of the production of several types of Microbulk detectors will be described. First benchmark results will be presented, demonstrating the enhanced performance of Microbulk detectors.

Subfields: Electrical and Electronic Engineering, Nuclear and High Energy Physics, Radiation

View Paper: https://www.semanticscholar.org/paper/f1cde0aaa0c5d1960a241b0b03f9b4228aaa0234

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In Electrical and Electronic Engineering

1. J. Redondo
2. Mattias Marklund
3. Padma Kant Shukla

In Nuclear and High Energy Physics

1. J. Redondo
2. Igor G. Irastorza
3. A. Ringwald
4. K. Saikawa
5. G. Raffelt
6. A. Lindner
7. D. Horns
8. P. Sikivie

In Radiation

1. Wick Haxton
2. F. Avignone
3. Mattias Marklund
4. Padma Kant Shukla

Citations in the corpus

• Conceptual design of the International Axion Observatory (IAXO) (2014, methodology): “ning the anode plane, has spread the use of Micromegas in many areas of high energy physics. There are several fabrication techniques of Micromegas, but we focus on a recent one, microbulk Micromegas [65], originally developed at CERN and CEA. In these readouts the Micromegas amplification structures”
• PandaX-III: Searching for neutrinoless double beta decay with high pressure 136Xe gas time projection chambers (2016, background): “Microbulk Micromegas have obtained the best energy resolution among all MPGDs and enjoy extremely good radiopurity levels [32, 46].”
• Towards a new generation axion helioscope (2011, background): “a photo resistive film to integrate the mesh (usually a commercial woven mesh) and anode, being already a mature and robust manufacturing process, the microbulk Micromegas is a more recent development [129, 130]. It allows to provide, like the bulk, all-in-one readouts but out of double-clad kapton f”
• New CAST limit on the axion–photon interaction (2017, methodology): “Micromegas readouts were built with the microbulk technique [33], out of copper and kapton, and were patterned with 500 μm pixels interconnected in x and y directions [34].”