کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9844972 | 1526504 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic shielding studies of the LHCb rich photon detectors
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The LHCb experiment will use two RICH detectors to provide particle identification. The Hybrid Photon Detectors (HPDs) adopted for these detectors are required to operate in the fringe field of the 4Â Tm LHCb dipole magnet. In fields in excess of 15Â G, photoelectrons are lost from the active area of an HPD. Shielding the HPDs from the fringe field is therefore essential for the efficient operation of the RICH detectors. This paper describes the technique used to calculate the residual field inside the relevant magnetic shields. The size of the problem, together with the disparity in the geometric scales involved, makes the calculations intractable using a finite element model of the entire magnetic environment. As a result, a sub-modelling method has been used. The model indicates that the photon detectors will operate efficiently.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 553, Issues 1â2, 11 November 2005, Pages 114-119
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 553, Issues 1â2, 11 November 2005, Pages 114-119
نویسندگان
M. Patel, M. Losasso, T. Gys,