A PROTOTYPE MONOLITHIC PIXEL DETECTOR

Citation
Cj. Kenney et al., A PROTOTYPE MONOLITHIC PIXEL DETECTOR, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 342(1), 1994, pp. 59-77
Citations number
17
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
ISSN journal
01689002
Volume
342
Issue
1
Year of publication
1994
Pages
59 - 77
Database
ISI
SICI code
0168-9002(1994)342:1<59:APMPD>2.0.ZU;2-4
Abstract
The performance of a monolithic pixel detector with both detecting ele ments and readout circuitry in the same piece of high-resistivity sili con and providing three-dimensional position information is described. The basic pixel cell is 34 X 125 mum2. The most-probable signal for a minimum-ionizing particle was observed to be 65 times the single-chan nel, root-mean-square noise in a muon beam. With different off-chip el ectronics, used with a gamma-ray source, the noise was found to be 2.3 times lower. A spatial resolution of 2.0 mum was obtained in the dire ction of 34 mum pitch for normally incident high-momentum muons. For t racks of up to 56-degrees to the normal the spatial resolution was und er 7 mum. Results of a simulation program for calculating charge sprea ding and drift times are presented and compared with observations.