Determination of the interaction coordinate in drift detectors through the timing of induced signals

Autor:	F. E. Zocchi, E. Gatti, Marco Sampietro
Rok vydání:	1993
Předmět:	Physics Interaction point Physics::Instrumentation and Detectors business.industry Detector General Physics and Astronomy Centroid Semiconductor device Particle detector Semiconductor detector Anode Optics Electric field business
Zdroj:	Journal of Applied Physics. 74:5940-5945
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.355205
Popis:	The time centroid of the current pulse induced at the anode of a semiconductor drift detector is calculated as a function of the interaction coordinate for arbitrary drifting fields. The effects of its behavior on the determination of the absolute position of the interaction point are studied. For a typical bias condition of the detector, the paper shows that an error up to few hundred micrometers is made in the position reconstruction of the event if the described effects of the induction are not taken into account. The paper also shows that the time shift due to the perturbation of the drifting field caused by the discreteness of the field electrodes, is only of less than 1 ns, and therefore negligible in most applications.
Databáze:	OpenAIRE
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