English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We report on the construction, operation experience, and preliminarybackground measurements of an InGrid detector, i.e. a MicroMegas detector withCMOS pixel readout. The detector was mounted in the focal plane of the AbrixasX-Ray telescope at the CAST experiment at CERN. The detector is sensitive tosoft X-Rays in a broad energy range (0.3--10 keV) and thus enables the searchfor solar chameleons. Smooth detector operation during CAST data taking inautumn 2014 has been achieved. Preliminary analysis of background dataindicates a background rate of $1-5\times10^{-5}\,\mathrm{keV}^{-1}\mathrm{cm}^{-2}\mathrm{s}^{-1}$ above 2 keV and$\sim 3\times 10^{-4}\,\mathrm{keV}^{-1}\mathrm{cm}^{-2}\mathrm{s}^{-1}$ around1 keV. An expected limit of $\beta_\gamma \lesssim 5\times 10^{10}$ on thechameleon photon coupling is estimated in case of absence of an excess in solartracking data. We also discuss the prospects for future operation of thedetector.

Using an InGrid Detector to Search for Solar Chameleons with CAST