15–18 Mar 2021
Zoom
Europe/Zurich timezone

Incident angle effect on the spatial resolution of an Asian GEM module

18 Mar 2021, 06:25
20m
Online Conference (Zoom)

Online Conference

Zoom

PD5: Tracking Detectors PD5: Tracking Detectors

Speaker

Jurina Nakajima (SOKENDAI)

Description

A high performance central tracker is essential for precision measurements of Higgs properties at the ILC. The LCTPC-Asia group is developing a GEM based readout module for a TPC proposed as the central tracker of the ILD. Results from its test beam data taken in 2016 at DESY with the large prototype TPC (LP1) were reported multiple times in the past workshops of this series. This time we focus on inclined tracks and analyze their incident angle effect. A finite incident angle produces an extra charge spread over the readout pads and, together with the fluctuations of the positions and sizes of primary ionization clusters, degrades the spatial resolution as compared to that for the normal incidence. This so-called angular pad effect is expected to be further amplified by gas gain fluctuations. In this talk, we will report our preliminary results regarding the angular pad effect on the Asian GEM module, including the estimated effective number of primary ionization clusters and its comparison with a simulation result by the Heed package of Garfield++.

Time Zone Asia/Pacific

Primary author

Co-authors

Keisuke Fujii (High Energy Accelerator Research Organization (JP)) Ryo Yonamine (KEK) Makoto Kobayashi (KEK, IPNS) Takeshi Matsuda (High Energy Accelerator Research Organization (KEK)) Tomohisa Ogawa (High Energy Accelerator Research Organization) Yumi Aoki (KEK/SOKENDAI) Keita Yumino (KEK/SOKENDAI) Shinya Narita (Iwate University (JP)) Kentaro Negishi (Iwate University (JP)) Aiko Shoji (Iwate University) Akira Sugiyama (Saga Univ.) Takahiro Fusayasu (Nagasaki Inst. of Applied Science (JP)) Toru Takahashi Takashi Watanabe (Kogakuin University) Yukihiro Kato (Kindai University) Katsumasa Ikematsu (Tohoku Univ.) Ron Settles Junping Tian (The University of Tokyo) Daisuke Arai (Fujikura Ltd.) Paul Colas (Université Paris-Saclay (FR)) Serguei Ganjour (Université Paris-Saclay (FR)) Ralf Diener (DESY) Oliver Schäfer (DESY) Shin-ichi Kawada (DESY) Felix Müller (DESY) Leif Jonsson Ulf Mjörnmark (Lund Univ.) Huirong Qi (Institute of High Energy Physics, CAS) Daisuke Kihara (Seigen Univ.)

Presentation materials