Calibration of Solid State Nuclear Track Detectors for Rare Event Searches
M. Kalliokoski, G. Levi, A. Maulik, I. Ostrovskiy, L. Patrizii, J. Pinfold, Z. Sahnoun, G. Sirri, R. Soluk, M. Staelens, V. Togo, A. Upreti
公開日: 2025/3/12
Abstract
The calibration of the CR39 and Makrofol Nuclear Track Detectors of the MoEDAL experiment at the CERN-LHC was performed by exposing stacks of detector foils to heavy ion beams with energies ranging from 340 MeV/nucleon to 150 GeV/nucleon. After chemical etching, the base areas and lengths of etch-pit cones were measured using automatic and manual optical microscopes. The response of the detectors, as measured by the ratio of the track-etching rate over the bulk-etching rate, was determined over a range extending from their threshold at Z/$\beta\sim7$ and $\sim50$ for CR39 and Makrofol, respectively, up to Z/$\beta\sim92$