Issue EAS Publications Series Volume 36, 2009 Dark Energy and Dark Matter: Observations, Experiments and Theories Page(s) 319 - 320 DOI 10.1051/eas/0936046 Published online 30 May 2009

Dark Energy and Dark Matter: Observations, Experiments and Theories
E. Pécontal, T. Buchert, Ph. Di Stefano and Y. Copin (eds)
EAS Publications Series, 36 (2009) 319-320
DOI: 10.1051/eas/0936046

Feasibility study on a directional detection of WIMP using nano imaging tracker and X-ray microscope

Y. Tawara¹, I. Sakurai¹, T. Naka², M. Natsume² and K. Niwa<sup>2

1</sup>  Division of Energy Science, EcoTopia Science Institute, Nagoya University, Japan
²  Department of Physics, Nagoya University, Japan

Published online: 30 May 2009

Abstract
We propose new measurement system for direct detection of WIMPs with directional information using nano imaging tracker (NIT) and X-ray microscope. The NIT made of fine grains of emulsion has a good spatial resolution of several tens nanometer and the X-ray microscope can work as a readout instrument for sub-micron track structure instead of ordinary optical microscope. Wolter type-I fluorescence X-ray microscope utilizing Ag-L line can be applied to this system. Crucial issues are reduction of background event due to random fog and to develop fast selection method of WIMP event candidates.

© EAS, EDP Sciences 2009

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