A NEW VERTEX DETECTOR MADE OF GLASS-CAPILLARIES

Citation
P. Annis et al., A NEW VERTEX DETECTOR MADE OF GLASS-CAPILLARIES, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 386(1), 1997, pp. 72-80
Citations number
21
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
ISSN journal
01689002
Volume
386
Issue
1
Year of publication
1997
Pages
72 - 80
Database
ISI
SICI code
0168-9002(1997)386:1<72:ANVDMO>2.0.ZU;2-7
Abstract
We have developed a new detector technique that allows high quality im aging of ionizing particle tracks with very high spatial and time reso lution. Central to this technique are liquid-core fibres of about 20 m u m diameter read out by an optoelectronic system including a CCD. The fibres act simultaneously as target, detector and light guides. A lar ge-volume prototype, consisting of 5 x 10(5) capillaries of 20 mu m di ameter and 180 cm length, has been tested in the CERN wide-band neutri no beam. A sample of high-multiplicity neutrino interactions was recor ded, demonstrating the imaging quality of this detector. First results from the reconstruction of these events are reported, A track residua l of 28 mu m and a vertex resolution of 30 mu m has been achieved. Fut ure applications of capillary detectors for neutrino and beauty physic s are being investigated within the framework of the RD46 collaboratio n.