Title :
The design and the construction of the scintillating fiber detector for the UA2 experiment
Author :
Alitti, J. ; Baracat, A. ; Bareyre, P. ; Blumenfeld, H. ; Bonamy, P. ; Bourdinaud, M. ; Crittenden, J. ; Meyer, J.P. ; Perrin, P. ; Stirling, A. ; Thevenin, J.C. ; Zaccone, H.
Author_Institution :
DPhPE, CEN, Gif-sur-Yvette, France
fDate :
2/1/1989 12:00:00 AM
Abstract :
The scintillating fiber detector (SFD) is a key part of the upgraded UA2 experiment. It includes 60000 scintillating fibers 1 mm in diameter and 2 m long, arranged in 24 coaxial layers fitting in a cylindrical space from 760 to 880 mm in diameter around pp¯ intersection. The fiber layers are arranged in eight stereo triplets. Each one contains one fiber set parallel to the axis and two others inclined at an angle of ±20° on the average. The SFD has two separate functions: The inside layers give a precise localization of the particles; the outside layers initiate the electromagnetic showers by conversion in a lead sheet 1.5-radiation-lengths thick. Each fiber is optically tested; when not rejected, its scintillating efficiency and attenuation length are recorded. The position of every fiber is measured and recorded, and each fiber is individually read out
Keywords :
scintillation counters; 1 mm; 2 m; 24 coaxial layers; UA2 experiment; electromagnetic showers; localization; scintillating fiber detector; Artificial intelligence; Computer crime; Milling machines; Optical distortion; Petroleum; Propulsion; Prototypes; Radiofrequency interference; Solid scintillation detectors; System testing;
Journal_Title :
Nuclear Science, IEEE Transactions on
