Research articles

search articles

My Pages

Stat

Members: 3645
Articles: 2'504'928
Articles rated: 2609

25 April 2024

» arxiv » 1509.6190

Article overview

A Micromegas-based low-background x-ray detector coupled to a slumped-glass telescope for axion research
F. Aznar ; J. Castel ; F. E. Christensen ; T. Dafni ; T. A. Decker ; E. Ferrer-Ribas ; J. A. Garcia ; I. Giomataris ; J. G. Gracia ; C. J. Hailey ; R. M. Hill ; F. J. Iguaz ; I. G. Irastorza ; A. C. Jakobsen ; G. Luzon ; H. Mirallas ; T. Papaevangelou ; M. J. Pivovaroff ; J. Ruz ; T. Vafeiadis ; J. K. Vogel ;
Date:	21 Sep 2015
Abstract:	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 microbulk technique. The detector is made from radiopure materials and is placed at the focal point of a $sim$~5 cm diameter, 1.3 m focal-length, cone-approximation Wolter I x-ray telescope (XRT) comprised of thermally-formed (or "slumped") glass substrates deposited with multilayer coatings. The system has been conceived as a technological pathfinder for the future International Axion Observatory (IAXO), as it combines two of the techniques (optic and detector) proposed in the conceptual design of the project. It is innovative for two reasons: it is the first time an x-ray optic has been designed and fabricated specifically for axion research, and the first time a Micromegas detector has been operated with an x-ray optic. The line has been installed at one end of the CERN Axion Solar Telescope (CAST) magnet and is currently looking for solar axions. The combination of the XRT and Micromegas detector provides the best signal-to-noise ratio obtained so far by any detection system of the CAST experiment with a background rate of 5.4$ imes$10$^{-3};$counts per hour in the energy region-of-interest and signal spot area.
Source:	arXiv, 1509.6190
Services:	Forum \| Review \| PDF \| Favorites

No review found.

Did you like this article?

This article or document is ...
important:
of broad interest:
readable:
new:
correct:
Global appreciation:

Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.

browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

ScienXe.org
» my Online CV
» Free

News, job offers and information for researchers and scientists:

home

contact

sitemap