Track fitting in slightly inhomogeneous magnetic fields

被引：2
|
作者：
Alcaraz, J [1 ]
机构：
[1] CIEMAT, E-28040 Madrid, Spain
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2005年 / 553卷 / 03期
关键词：
tracking; inhomogeneous magnetic fields; fitting; multiple scattering; reconstruction programs; data analysis;
D O I：
10.1016/j.nima.2005.07.021
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A fitting method to reconstruct the momentum and direction of charged particles in slightly inhomogeneous magnetic fields is presented in detail. For magnetic fields of the order of 1T and inhomogeneity gradients as large as 1 T/m the typical momentum bias due to the proposed approximations is of the order of few MeV, to be compared with scattering components of the order of 20 MeV or even larger. This method is currently being employed in the reconstruction programs of the AMS experiment. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：613 / 619
页数：7
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