부산대학교 도서관

The new 300 t vevertical spectrograph of the University of Durham are described. The spectrograph utilises neon flash-tubes for particle trajectory defining purposes and the data from the tubes are fed directly into an on-line computer. The m.d.m. of the spectrograph is 5850 GeV/c, and the ratio of the rms scattering angle to the magnetic deflection is 10%. A momentum selector is incorporated in the instrument with a low momentum cut off of approximately 200 GeV/c. The value of ʃBdl is8.09×106G cm, and each of the two sides of the spectrograph has an acceptance of (408±2) cm2sr for particles of infinite momentum. The rate of transversal of muons through each side of the instrument is in excess of 2×104per day.