CERN Accelerating science

LHCb Note
Report number	LHCb-2000-098
Title	Measurements of the signal shape of a silicon strip detector with SCTA readout
Author(s)	Bartalini, P (LPHE, Lausanne) ; Buytaert, J (CERN) ; Collins, P (CERN) ; Dijkstra, H (CERN) ; Dormond, O (LPHE, Lausanne) ; Elsing, M (CERN) ; Fiedler, F (CERN) ; Frei, R (LPHE, Lausanne) ; Ketel, T (Vrije U., Amsterdam) ; Klous, S (Vrije U., Amsterdam) ; Parkes, C (LPHE, Lausanne) ; Ruf, T (CERN) ; Steele, D (LPHE, Lausanne) ; Studer, L (LPHE, Lausanne) ; Teubert, F (CERN) ; Wright, V (Liverpool U.)
Submitted by	[email protected] on 27 Oct 2000
Subject category	Detectors and Experimental Techniques
Note type	VELO
Accelerator/Facility, Experiment	CERN LHC ; LHCb
Free keywords	SCTA readout ; signal shape ; silicon
Abstract	Data of a beam test in Autumn 1999 have been analysed to determine the pulse shape of the signal as read out by an SCTA chip from a detector prototype for the LHCb Vertex Locator. The measurements have been performed at different bias voltages and distinguishing non-irradiated and irradiated regions on the detector. The results are interpreted in terms of the signal overspill that remains for the subsequent readout after 25 ns, and an optimal working point is determined, considering both the signal amplitude and the overspill fraction.
Copyright/License	Preprint: (License: CC-BY-4.0)

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