The chamber for direct detection of WIMP with mass < 10 Gev/c 2 and axions, emitted from the Sun was developed. The chamber is filled with gas mixture H 2 +3ppm TMAE (1,5,10 bar), or D 2 + 3ppmTMAE. These gas fillings allow to suppress the electron background. For detecting of events is used the system GEM+pin-anode with coefficient multiplication about 10 5 . In experiment it is necessary to search the early or daily modulation effects.
The chamber for direct detection of WIMP with mass ≤ 0.5 Gev/c 2 was developed. The chamber is filled with gas mixture Ne+10%H 2 (0-1bar)+0,15ppm Ge(CH 3) 4. For events detections used GEM+pin-anode , which provides the energy threshold about eV. The electron background is suppressed owing to photosensitive addition Ge(CH 3) 4. It is proposed also for direct detection of WIMP the liquid argon chamber with H 2 dissolved in liquid argon at a concentration 100ppm+0,015ppm Ge(CH 3) 4 .
A novel and relatively simple method of production of electrodes for a multi-channel wire gas multiplier is developed. Two modifications of the multipliers have been tested: with a multiplication of electrons between two wire electrodes, MWGEM, and between a wire electrode and continuous anode, MWCAT. It is observed, that in contrast to the GEM detectors, produced by perforation of a metalclad plastic foil, in a MWGEM the discharges do not destroy its electrodes even for the potentials above the threshold of discharges.The results on operation of the MWCAT filled with Ar, Ar+CH 4 and Ar+1% Xe are also presented.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.