Status of the ANAIS experiment at Canfranc
S. Cebrian, J. Amare, J. M. Carmona, E. Garcia, I. G. Irastorza, G., Luzon, A. Morales, J. Morales, A. Ortiz de Solorzano, J. Puimedon, M.L., Sarsa, J. A. Villar
TL;DR
The paper reports the current status of the ANAIS experiment at Canfranc, which aims to detect WIMP-induced annual modulation signals using NaI(Tl) detectors, highlighting initial background levels and stability.
Contribution
It presents the first results of a prototype NaI(Tl) detector, demonstrating low background levels and environmental stability crucial for dark matter detection.
Findings
Background level of 1.2 counts/(keV kg day) from 4 to 10 keV
Stable environmental conditions confirmed over the measurement period
Successful operation of a 10.7 kg NaI(Tl) crystal prototype
Abstract
The present status of the ANAIS experiment (Annual Modulation with NaI's) is shown. ANAIS is intended to use more than 100 kg of NaI(Tl) in the Canfranc Underground Laboratory (Spain) searching for seasonal modulation effects in the WIMP signal; in a first stage, a prototype (one single 10.7 kg crystal) has been developed in order to obtain the best conditions regarding the energy threshold and the radioactive background in the low energy region as well as to check the stability of the environmental conditions. The first results corresponding to an exposure of 2069.85 kg day show an average background level of 1.2 counts/(keV kg day) from threshold ( keV, even using one single photomultiplier) up to 10 keV.
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