NDLI: Micromegas time projection chamber development for rare event detection

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Micromegas time projection chamber development for rare event detection

Content Provider	Semantic Scholar
Author	Ounalli, Leila
Copyright Year	2006
Abstract	Since the Multi Wire Proportional Chamber ”MWPC” of G. Charpak in 1968, new developments in gaseous detectors have been recently proposed. Gas Electron Multiplier ”GEM”, Large Electron Multiplier ”LEM” or Micro mesh gaseous structure ”Micromegas” ., are some of the best known examples. The main goal of this new micropattern generation is to have good resolutions, low background, fast response with the highest efficiency and good sensitivity in the range of interest (the range of naturel radioactivity in our case). The main purpose of this manuscript is to describe a development of a Time Projection Chamber (TPC) with a Micromegas detection plane, we called it ”Micromegas-TPC”. Two existing TPC's are used: • A small prototype, called Neuchâtel-miniTPC, is devoted to study electron transport properties in the gas and to develop the read out plane based on the Micromegas micropattern. • An intermediate prototype, called Gotthard-TPC, is used to operate the Micromegas detection plane in a large scale and to estimate the background of such a detector. This TPC detector is optimized to fix such important parameters needed for rare event detection, especially for neutrinoless double beta decay in the Xe isotope. This manuscript is laid out in two parts: the first four chapters present some of the fundamental background knowledge required for rare event detection with a gaseous detector. In particular, chapter three and four describe some results needed for charge collection study. The second part of the manuscript describes the Neuchâtel-miniTPC and the GotthardTPC results.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://doc.rero.ch/record/6516/files/these_OunalliL.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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