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Physics > Instrumentation and Detectors

arXiv:1510.06312 (physics)
[Submitted on 20 Oct 2015]

Title:Recent Progress with the KWISP Force Sensor

Authors:G. Cantatore, A. Gardikiotis, D.H.H. Hoffmann, M. Karuza, Y.K. Semertzidis, K. Zioutas
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Abstract:The KWISP opto-mechanical force sensor has been built and calibrated in the INFN Trieste optics laboratory and is now under off-beam commissioning at CAST. It is designed to detect the pressure exerted by a flux of solar Chameleons on a thin (100 nm) Si$_3$N$_4$ micromembrane thanks to their direct coupling to matter. A thermally-limited force sensitivity of $1.5 \cdot 10^{-14}~\mbox{N}/\sqrt{\mbox{Hz}}$, corresponding to $7.5 \cdot 10^{-16}~\mbox{m}/\sqrt{\mbox{Hz}}$ in terms of displacement, has been obtained. An originally developed prototype chameleon chopper has been used in combination with the KWISP force sensor to conduct preliminary searches for solar chamaleons.
Comments: 4 Pages, 3 Figures, submitted to the Proceedings of the "11th Patras Workshop on Axions, WIMPs and WISPs"
Subjects: Instrumentation and Detectors (physics.ins-det); Instrumentation and Methods for Astrophysics (astro-ph.IM); High Energy Physics - Experiment (hep-ex)
Cite as: arXiv:1510.06312 [physics.ins-det]
  (or arXiv:1510.06312v1 [physics.ins-det] for this version)
  https://doi.org/10.48550/arXiv.1510.06312

Submission history

From: Giovanni Cantatore [view email]
[v1] Tue, 20 Oct 2015 07:59:38 UTC (740 KB)
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