The PeakSum system for the EPSI experiment

Author

Galeotti, S. ; Morsani, F. ; Passuello, D. ; Rossi, F.

Author_Institution

INFN, Pisa, Italy

Volume

39

Issue

5

fYear

1992

fDate

10/1/1992 12:00:00 AM

Firstpage

1307

Lastpage

1310

Abstract

The EPSI experiment trigger system needs to know how many γ photons are generated by the K⁰ decay, what their total energy is, whether their Barycentre is on the beam axis, and where is the decay vertex position along the beam axis is: this parameter is related to the second-order momentum value. The PeakSum system was conceived to calculate all these quantities with a convenient precision based on custom VLSI chips. It is a pipelined circuit, designed to work with a pipeline clock period of 25 ns, but its components can be easily redesigned to have no internal pipeline stages. The heart of the system is the PeakSum chip, which is described

Keywords

CP invariance; VLSI; electromagnetic decays; gamma-ray detection and measurement; kaon decay; nuclear electronics; Barycentre; EPSI experiment trigger system; K⁰ decay; PeakSum chip; PeakSum system; beam axis; custom VLSI chips; decay vertex position; gamma photons; kaon decay; pipeline clock period; pipelined circuit; second-order momentum value; Adders; Clocks; Counting circuits; Filters; Pipeline processing; Process design; Signal generators; Table lookup; Time measurement; Very large scale integration;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.173196

Filename

173196