A silicon backward tracking detector and trigger for the H1 experiment at the ep collider HERA

Author

Henschel, H. ; Harder, U. ; Kaufmann, H.H. ; Klein, M. ; Kostka, P. ; Lange, W. ; Lippold, H. ; Meissner, J. ; Naumann, T. ; Winde, M.

Author_Institution

DESY Inst. for High Energy Phys. Zeuthen, Germany

Volume

40

Issue

4

fYear

1993

fDate

8/1/1993 12:00:00 AM

Firstpage

692

Lastpage

698

Abstract

A proposal is described to upgrade the existing H1 tracking detector by a semiconductor backward tracking telescope consisting of 8 beam-concentric disks to measure the gluon and quark distribution functions at very low Bjorken x. Each disk comprises three planes of strip and pad silicon detectors made of 4-in wafers in order to determine the polar angle and the transverse momentum, and to trigger on deep inelastically scattered electrons. The simulation work and the layout constraints on the semiconductors are discussed. The technical and electronics design of the trigger is reviewed. It has to cope with very high beam background rates and the HERA bunch crossing rate of 10.4 MHz

Keywords

nuclear electronics; semiconductor counters; silicon; trigger circuits; 10.4 MHz; H1 tracking detector; HERA bunch crossing rate; Si; beam-concentric disks; deep inelastically scattered electrons; ep collider; gluon distribution function; quark distribution functions; semiconductor backward tracking telescope; Binary search trees; Current measurement; Detectors; Distribution functions; Electrons; Histograms; Particle scattering; Physics; Proposals; Silicon;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.256643

Filename

256643