Fiorini, M.
Carassiti, V.
Ceccucci, A.
Cortina, E.
Cotta Ramusino, A.
Dellacasa, G.
Jarron, P.
Kaplon, J.
Kluge, A.
Marchetto, F.
Martin, E.
[UCL]
Martoiu, S.
Mazza, G.
Noy, M.
Petrucci, F.
Riedler, P.
Rivetti, A.
Tiuraniemi, S.
et al. [show all ]
The beam spectrometer of the NA62 experiment, named Gigatracker, has to perform single track reconstruction with unprecedented time resolution (150 ps rms) in a harsh radiation environment. To meet these requirements, and in order to reduce material budget to a minimum, three hybrid silicon pixel detector stations will be installed in vacuum. An adequate strategy to compensate for the discriminator time-walk must be implemented and R&D investigating two different options is ongoing. Two read-out chip prototypes have been designed in order to compare their performance: one approach is based on the use of a constant-fraction discriminator followed by an on-pixel TDC, while the other one is based on the use of a time-over-threshold circuit followed by a TDC shared by a group of pixels. This paper describes the Gigatracker system, presents the global architectures of both read-out ASICs and reviews the current status of the R&D project. © 2010 Elsevier B.V. All rights reserved.
Bibliographic reference
Fiorini, M. ; Carassiti, V. ; Ceccucci, A. ; Cortina, E. ; Cotta Ramusino, A. ; et. al. The NA62 Gigatracker: Detector properties and pixel read-out architectures. In: Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment , Vol. 624, no. 2, p. 314-316 (2010)
Permanent URL
http://hdl.handle.net/2078.1/163715
