کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1831610 1027500 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Step-like field magnets to transform beam distribution at the CSNS target
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
Step-like field magnets to transform beam distribution at the CSNS target
چکیده انگلیسی

The method of using step-like field magnets to obtain a uniform beam distribution at the CSNS target has been studied. This is important to prolong the lifetime of the target vessel and the proton beam window, and to improve the beam utilization. To be effective for the non-linear magnets, the phase advance between the magnets and the target should be close to an integer multiple of π. The derivations for the phase advance requirement are also given. The two different core beam emittances at the CSNS-I and the CSNS-II are used in the simulations. The simulations show that the method has a good flexibility and that the reduction on the maximum current density at the CSNS target by more than a factor of two can be obtained. The magnets also help to correct the beam center displacement at the target caused by the jitter or misfiring of the ring extraction kickers, and some simulation results are presented.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 582, Issue 2, 21 November 2007, Pages 326–335
نویسندگان
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