A fast spatial resolution optimizing method for track-ion using a GEM detector based on the time information

Abstract

A: In this work, a fast method of vertex reconstructing for incident ions in GEM detectors was proposed. As inspired by the Time Projection Chamber (TPC), the time information of the consecutive signal samples from Front End Electronics (FEE) was employed. To demonstrate the method, an experiment involving a 2D-readout THGEM detector with an APV-25 FEE was taken. With one experiment dependent parameter in the analysis, the proposed method led to a spatial resolution of 0.45 mm, compared with the same number of 9.10 mm from the traditional center of gravity method. K: Micro pattern gaseous detectors, Neutron detectors, Pattern recognition, cluster finding, calibration and fitting methods A X P : 1234.567891Corresponding author. 2Corresponding author.

An optimization method of position resolution for gaseous thermal neutron detection based on time information

“…From our previous work [26], the center of gravity at any one sampling period cannot precisely locate the incident vertex. And the center of gravity of the entire track cannot be considered as the real vertex either.…”

“…The energy deposition process of the 𝛼 or 7 Li particles induced by thermal neutrons is similar to that of the 𝛼 particles radiated by 241 Am. The reconstruction method in this paper is similar to our previous work [26]. As seen in figure 4, the ionized electron at the end of the track (point A) is closest to the readout PCB, and it produces an inductive signal on the readout PCB firstly.…”