کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9845506 1526514 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Parametric studies of image-charge effects on an intense beam in a small-aperture alternating-gradient focusing system
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
Parametric studies of image-charge effects on an intense beam in a small-aperture alternating-gradient focusing system
چکیده انگلیسی
The image-charge effects on an intense charged-particle beam propagating through an alternating-gradient focusing channel with a small aperture, circular, perfectly conducting pipe are studied using a test-particle model. For a well-matched elliptical beam with the Kapchinskij-Vladimirskij (KV) distribution, it is found that halo formation and beam loss are induced by nonlinear fields due to image charges on the wall. The halo formation and chaotic particle motion is found to depend sensitively on the system parameters: the occupancy of the quadrupole focusing field, the vacuum phase advance, the beam perveance, and the ratio of the beam size to the aperture. Furthermore, the percentage of beam loss to the conductor wall is calculated as a function of propagating distance and aperture.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 544, Issues 1–2, 21 May 2005, Pages 492-496
نویسندگان
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