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@INPROCEEDINGS{Desch:316727,
author = {Desch, Klaus and Kaminski, Jochen and Krieger, Christoph
and Lupberger, Michael},
title = {{U}sing an {I}n{G}rid {D}etector to {S}earch for {S}olar
{C}hameleons with {CAST}},
address = {Hamburg},
publisher = {Verlag Deutsches Elektronen-Synchrotron},
reportid = {PUBDB-2017-00125},
isbn = {978-3-935702-43-0},
series = {DESY-PROC},
pages = {35-38},
year = {2015},
comment = {Desch, Klaus "Using an InGrid Detector to Search for Solar
Chameleons with CAST" in Proceedings, 11th Patras Workshop
on Axions, WIMPs and WISPs (Axion-WIMP 2015) / Irastorza,
Igor G., Redondo, Javier, Carmona, José Manuel, Cebrian,
Susana, Dafni, Theopisti, Iguaz, Francisco J., Luzon, Gloria
(eds.), Verlag Deutsches Elektronen-Synchrotron : 2015 ;
AXION-WIMP 2015 : 11th Patras Workshop on Axions, WIMPs and
WISPs, 2015-06-22 - 2015-06-26, Zaragoza},
booktitle = {Desch, Klaus "Using an InGrid Detector
to Search for Solar Chameleons with
CAST" in Proceedings, 11th Patras
Workshop on Axions, WIMPs and WISPs
(Axion-WIMP 2015) / Irastorza, Igor G.,
Redondo, Javier, Carmona, José Manuel,
Cebrian, Susana, Dafni, Theopisti,
Iguaz, Francisco J., Luzon, Gloria
(eds.), Verlag Deutsches
Elektronen-Synchrotron : 2015 ;
AXION-WIMP 2015 : 11th Patras Workshop
on Axions, WIMPs and WISPs, 2015-06-22
- 2015-06-26, Zaragoza},
abstract = {We report on the construction, operation experience, and
preliminary background measurements of an InGrid detector,
i.e.~a MicroMegas detector with CMOS pixel readout. The
detector was mounted in the focal plane of the Abrixas X-Ray
telescope at the CAST experiment at CERN. The detector is
sensitive to soft X-Rays in a broad energy range
$\J{(0.3--10)~keV$ } and thus enables the search for solar
chameleons. Smooth detector operation during CAST data
taking in autumn 2014 has been achieved. $\J{A$ p}reliminary
analysis of background data indicates a background rate of
\J{(1--5)}$ \times
10^{-5}~\mathrm{keV}^{-1}\mathrm{cm}^{-2}\mathrm{s}^{-1}$
above 2~keV and $\sim 3\times
10^{-4}~\mathrm{keV}^{-1}\mathrm{cm}^{-2}\mathrm{s}^{-1}$
around 1~keV. An expected limit of $\beta_\gamma \lesssim
5\times 10^{10}$ on the chameleon photon coupling is
estimated in case of absence of an excess in solar tracking
data. We also discuss the prospects for future operation of
the detector.},
month = {Jun},
date = {2015-06-22},
organization = {11th Patras Workshop on Axions, WIMPs
and WISPs, Zaragoza (Spain), 22 Jun
2015 - 26 Jun 2015},
typ = {PUB:(DE-HGF)8 / PUB:(DE-HGF)7},
doi = {10.3204/DESY-PROC-2015-02/desch_klaus},
url = {https://bib-pubdb1.desy.de/record/316727},
}