Showing papers by "Masaharu Nomachi published in 1993"
TL;DR: In this paper, the authors measured cross sections of subthreshold p productions in the reactions of d + {C, Al, Cu} at 3.0, 3.5, 4.0 and 5.0 GeV/u.
14 citations
05 Jul 1993
TL;DR: In this paper, the authors studied hard X-ray/γ-ray emission from Cen A (NGC 5128) in a balloon experiment with a low background detector (Welcome‐1) in Brazil.
Abstract: We studied hard X‐ray/γ‐ray emission from Cen A (NGC 5128) in a balloon experiment with a low background detector (Welcome‐1) in Brazil. The energy spectrum of CenA is obtained from 40 keV to 600 keV. We combined the energy spectrum obtained by the Ginga satellite in a similar state. The combined spectrum indicates that there is a break at 185±22 keV. The spectrum is fitted to the broken power law model with the photon index of α1=−1.79 up to 188 keV, and α2=−3.7−1.7+0.9 above the break.
1 citations
TL;DR: In this article, a new kind of phoswich counters that will be capable of detecting low-flux hard X-rays/gamma-rays from astronomical objects was developed.
1 citations
31 Oct 1993
TL;DR: A new data acquisition system for a K/sup 0/ decay experiment (E162) at KEK PS has a unique pipeline operation scheme for front-end modules without "flash" devices that enables the next event to be processed during data read-out, and thus dead-time can be reduced significantly.
Abstract: We have developed a new data acquisition system for a K/sup 0/ decay experiment (E162) at KEK PS. The system has a unique pipeline operation scheme for front-end modules without "flash" devices. This pipeline scheme enables the next event to be processed during data read-out, and thus dead-time can be reduced significantly. >
1 citations