Title :
The PeakSum system for the EPSI experiment
Author :
Galeotti, S. ; Morsani, F. ; Passuello, D. ; Rossi, F.
Author_Institution :
INFN, Pisa, Italy
fDate :
10/1/1992 12:00:00 AM
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;
Journal_Title :
Nuclear Science, IEEE Transactions on
