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arXiv · 1410.0264

An InGrid based Low Energy X-ray Detector

Christoph Krieger·Klaus Desch·Jochen Kaminski·Michael Lupberger·Theodoros Vafeiadis
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Abstract

An X-ray detector based on the combination of an integrated Micromegas stage with a pixel chip has been built in order to be installed at the CERN Axion Solar Telescope. Due to its high granularity and spatial resolution this detector allows for a topological background suppression along with a detection threshold below $1\,\text{keV}$. Tests at the CAST Detector Lab show the detector's ability to detect X-ray photons down to an energy as low as $277\,\text{eV}$. The first background data taken after the installation at the CAST experiment underline the detector's performance with an average background rate of $5\times10^{-5}\,/\text{keV}/\text{cm}^2/\text{s}$ between 2 and $10\,\text{keV}$ when using a lead shielding.

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Christoph Krieger, Klaus Desch, Jochen Kaminski, Michael Lupberger, Theodoros Vafeiadis. 2014-10-01. An InGrid based Low Energy X-ray Detector. https://arxiv.org/abs/1410.0264

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