Two-dimensional beam profiles and one-dimensional projections

被引：2

作者：

Findlay, D. J. S. ^{[1
]}

Jones, B. ^{[1
]}

Adams, D. J. ^{[1
]}

机构：

[1] Rutherford Appleton Lab, STFC, ISIS, Didcot OX11 0QX, Oxon, England

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2018年 / 889卷

关键词：

Proton beams; Profile monitors; 2-dimensional distributions; 1-dimensional projections; Gaussian; Parabolic;

D O I：

10.1016/j.nima.2018.02.029

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

One-dimensional projections of improved two-dimensional representations of transverse profiles of particle beams are proposed for fitting to data from harp-type monitors measuring beam profiles on particle accelerators. Composite distributions, with tails smoothly matched on to a central (inverted) parabola, are shown to give noticeably better fits than single gaussian and single parabolic distributions to data from harp-type beam profile monitors all along the proton beam transport lines to the two target stations on the ISIS Spallation Neutron Source. Some implications for inferring beam current densities on the beam axis are noted.

引用

页码：113 / 117

页数：5