Detailed studies of the ATLAS pixel detectors

Author

Troncon, Clara

Author_Institution

Ist. Nazionale di Fisica Nucl., Milan, Italy

Volume

1

fYear

1999

fDate

1999

Firstpage

125

Abstract

Results are reported from beam tests of prototype silicon pixel sensors and front-end electronics with analog readout developed for use in the ATLAS experiment at the Large Hadron Collider (LHC). Both irradiated and unirradiated assemblies were tested for charge collection, efficiency and position resolution measurements. These indicate that n⁺ in n silicon pixel detectors with p-spray isolation can operate after irradiation to fluences of up to 10¹⁵ n_eq/cm² without significant degradation in performance. The depletion depth of irradiated sensors was measured and their behaviour in a magnetic field was studied. The Lorentz angle was found to decrease significantly very after irradiation. Comparison between performance on spatial resolution obtained with digital or analog readout is also presented

Keywords

magnetic field effects; meson effects; nuclear electronics; position sensitive particle detectors; proton effects; silicon radiation detectors; ATLAS; Lorentz angle; Si; Si pixel detectors; analog readout; charge collection; depletion depth; digital readout; efficiency; front-end electronics; magnetic field; meson irradiation; p-spray isolation; position resolution; proton irradiation; spatial resolution; Assembly; Colliding beam devices; Current measurement; Detectors; Electronic equipment testing; Large Hadron Collider; Magnetic field measurement; Magnetic sensors; Prototypes; Silicon;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1999. Conference Record. 1999 IEEE

Conference_Location

Seattle, WA

ISSN

1082-3654

Print_ISBN

0-7803-5696-9

Type

conf

DOI

10.1109/NSSMIC.1999.842461

Filename

842461