MultiWire室中静电和重力垂度的计算
Computation of Electrostatic and Gravitational Sag in MultiWire Chambers
摘要：
本文提出了一种通过求解控制丝稳定性的二阶微分方程来确定RICH（ALICE）多丝正比室中丝垂度的数值方法。用三点有限差分法（FDM）生成了一个三对角矩阵方程，该方程将导线段的变形与作用在导线段上的力联系起来，用一个近似精确的边界元法（neBEM）求解器通过精确的场计算得到了静电力的精确估计。
英文摘要：
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.
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