Author:
Zakharov V.,Shulga E.,Garg P.,Hemmick T.,Milov A.
Abstract
Abstract
Time Projection Chambers (TPC)s are excellent tracking detectors for high multiplicity
events and can intrinsically be high-rate, but are limited by the ions created in their avalanche
stage. GEMs and Micromegas can reduce IBF through their geometry and E͐-field ratios, but
these can lead to gain fluctuations and still leave IBF as the dominant source of space charge. An
active BPG can block all IBF ions, but their slow drift speed creates too much dead time. A
passive BPG will overcome this limitation by using an external B͐-field to allow the
electrons to pass through while still blocking all ions. Since the grid changes the electron's
trajectory, a loss of resolution will occur. The trajectory is shifted symmetrically along the
wires so the wire alignment with respect to the detection pads is a specific question not studied
before. We present completed IBF analysis from data collected at Weizmann Institute of Science
(WIS), along with an intro to our test on wire resolution.
Subject
Mathematical Physics,Instrumentation