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High-resolution tracking using large capillary bundles filled with liquid |
Author
Annis P. Bay A. Benussi L. Bruski N. Buontempo S. Currat C. d'Ambrosio N. van Dantzig R. Dupraz J. Ereditato A. Fabre JP. Fanti V. Feyt J. Frekers D. Frenkel A. Galeazzi F. Garufi F. Goldberg J. Gol
vkin SV. Gorin AM. Gregoire G. Harrison K. Hoepfner K. Holtz K. Konijn J. Kozarenko EN. Kreslo IE. Kushnirenko AE. Liberti B. Martellotti G. Medvedkov AM. Michel L. Migliozzi P. Mommaert C. Mondardi
i MR. Panman J. Penso G. Petukhov YP. Rondeshagen D. Siegmund WP. Tyukov V. Van Beek G. Vasil'chenko VG. Vilain P. Visschers JL. Wilquet G. Winter K. Wolff T. Wortche HJ. Wong H. Zimyn KV.
Institution
IIHE, Univ. Libre de Bruxelles, Belgium.
Title
High-resolution tracking using large capillary bundles filled with liquid
scintillator.
Source
Nuclear Instruments & Methods in Physics Research Section A-Accelerators
Spectrometers Detectors & Associated Equipment, vol.449, no.1-2, 11 July
2000, pp.60-80. Publisher: Elsevier, Netherlands.
Abstract
We have developed large high-resolution tracking detectors based on glass capillaries filled with organic liquid scintillator of high refractive index. These liquid-core scintillating optical fibres
act simultaneously as detectors of charged particles and as image guides. Track images projected onto the readout end of a capillary bundle are visualized by an optoelectronic chain consisting of a
et of image-intensifier tubes followed by a photosensitive CCD or by an EBCCD camera. Two prototype detectors, each composed of approximately=10/sup 6/ capillaries with 20-25 mu m diameter and 0.9-1
8 m length, have been tested, and a spatial resolution of the order of 20-40 mu m has been attained. A high scintillation efficiency and a large light-attenuation length, in excess of 3 m, was achie
ed through special purification of the liquid scintillator. Along the tracks of minimum-ionizing particles, the hit densities obtained were ~8 hits/mm at the readout window, and ~3 hits/mm at ~1 m a
ay. The level of radiation resistance of the prototype detectors is at least an order of magnitude higher than that of other tracking devices of comparable performance. (48 References).
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Timo Kellmann
automatically created: July 2001
