کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1829141 | 1027452 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Long-term operational experience with the HERMES aerogel RICH detector
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
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چکیده انگلیسی
For nearly 10 years, from 1998 until the closure of the HERA ring last July, a focused RICH has been used in the HERMES experiment at DESY to measure the semi-inclusive deep-inelastic scattering of polarized electrons on polarized gaseous targets. The RICH utilized two radiators, a heavy fluorocarbon gas, and a wall of silica aerogel tiles. It has identified pions, kaons, and protons in the momentum range from 2 to 15 GeV/c with a K/πK/π separation of nearly 3σ3σ at 4 GeV/c. The optical properties of the aerogel and the RICH performance related to this radiator are reviewed, and some parameters are sampled over the whole RICH operational period in order to test its long-term stability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 595, Issue 1, 21 September 2008, Pages 19–22
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 595, Issue 1, 21 September 2008, Pages 19–22
نویسندگان
Raffaele De Leo,