Developing a test procedure for neutron detection/non detection using a Small TPC Prototype

Sammanfattning: This work relates to the proposed n-nbar experiment at ESS and covers a procedure with which future neutron research can be made using a small TPC prototype. Settings for the GEM amplification voltage supply and main drift field across the chamber have been established using minimum ionizing cosmic muons as a reference. To be able to reconstruct tracks in three dimensions and measure the deposited energy of a particle, a track-finding and plotting software was also designed as part of this work. From measurements with an AmBe source a preliminary detection efficiency for gammas and thermal neutrons has been established. Future improvements regarding work with the small TPC prototype are suggested in terms of the pad size and geometry, improving the efficiency measurements and track-finding.