The time of flight wall for the HADES spectrometer

Author

Agodi, C. ; Bassi, A. ; Bassini, R. ; Bellia, G. ; Benovic, M. ; Boiano, C. ; Brambilla, S. ; Coniglione, R. ; Cosentino, L. ; Finocchiaro, P. ; Hlavac, S. ; Iori, I. ; Kugler, A. ; Maiolino, C. ; Marek, T. ; Migneco, E. ; Piattelli, P. ; Pleskac, R. ; Ra

Author_Institution

Lab. Nazionale del Sud., Ist. Nazionale di Fisica Nucl., Catania, Italy

Volume

45

Issue

3

fYear

1998

fDate

6/1/1998 12:00:00 AM

Firstpage

665

Lastpage

669

Abstract

In the framework of the HADES (High Acceptance DiElectron Spectrometer) collaboration we are developing the Time Of Flight (TOF) wall subdetector. In order to efficiently select events with e⁺e^- pairs produced in the nuclear matter, the TOF wall must be able to resolve electrons from pions up to 0.5 GeV/c and from protons up to 2 GeV/c. Because the short flight path of about 2 m requires a 100-150 ps time resolution, we are building a granular system made of scintillator rods readout on both ends by means of photomultipliers, capable of such performance

Keywords

electron detachment; electron spectrometers; solid scintillation detectors; HADES spectrometer; High Acceptance DiElectron Spectrometer; electrons; granular system; photomultipliers; pions; protons; scintillator rods; time of flight wall subdetector; Collaboration; Detectors; Electrons; Gold; Laboratories; Particle measurements; Photomultipliers; Physics; Spectroscopy; Timing;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.682606

Filename

682606