BNL hypernuclear spectrometers and instrumentation present and future

Abstract

During the period 1981 to 1984 the BNL hypernuclear spectrometer system was upgraded resulting in an increase in kaon flux and an increase in solid angle and momentum acceptance. The modifications require drift chambers to be operated at rates up to 107 s−1. The performance of the spectrometer‐drift chamber systems will be discussed.