کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1829158 | 1027452 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A new aerogel Cherenkov detector for DIRAC-II
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A new aerogel Cherenkov detector for DIRAC-II A new aerogel Cherenkov detector for DIRAC-II](/preview/png/1829158.png)
چکیده انگلیسی
A new threshold Cherenkov detector using silica aerogel radiators is in operation in the DIRAC-II experiment at CERN. A duplex design was chosen to discriminate between kaons and protons in the momentum range 4–8 GeV/c. The counter consists of overlapping modules with two different refractive indices, 1.015 and 1.008, covering the low and high momentum regions, respectively. We developed a new design of alternating layers of aerogel tiles and diffusive reflector foils coated with wavelength shifter to improve light collection in the aerogel. A pyramidal shape of the aerogel radiator was also adopted for best signal uniformity over a large sensitive area. We report on the detector status and its performance in the DIRAC 2007 run.
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 84–87
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 595, Issue 1, 21 September 2008, Pages 84–87
نویسندگان
Y. Allkofer, C. Amsler, S. Horikawa, C. Regenfus, J. Rochet,