A numerical method of determining the wire sag in a multiwire proportional chamber used in RICH (ALICE) by solving the second order differential equation which governs the wire stability has been presented. The three point Finite Difference Method (FDM) has generated a tridiagonal matrix equation relating the deflection of wire segments to the force acting on it. The precise estimates of electrostatic force has been obtained from accurate field computation using a nearly exact Boundary Element Method (neBEM) solver.
@article{arxiv.physics/0703004,
title = {Computation of Electrostatic and Gravitational Sag in MultiWire Chambers},
author = {N. Majumdar and S. Mukhopadhyay},
journal= {arXiv preprint arXiv:physics/0703004},
year = {2007}
}
Comments
Presented in XVII DAE-BRNS High Energy Physics Symposium, December 11-15, 2006, IIT, Kharagpur, India