Beam and SKS spectrometers at the K1.8 beam line

High-resolution spectrometers for both incident beams and scattered particles have been constructed at the K1.8 beam line of the Hadron Experimental Facility at J-PARC. A point-to-point optics is realized between the entrance and exit of QQDQQ magnets for the beam spectrometer. Fine-pitch wire chamber trackers and hodoscope counters are installed in the beam spectrometer to accept a high rate beam up to 107 Hz. The superconducting kaon spectrometer for scattered particles was transferred from KEK with modifications to the cryogenic system and detectors. A missing-mass resolution of 1.9 ± 0.1 MeV/c2 (FWHM) was achieved for the ∑ peaks of (π±, K+) reactions on a proton target in the first physics run of E19 in 2010

高エネ研（KEK）史料室のこの1年の活動

第Ⅱ部　共同利用研の歴史とアーカイブ 第1章関本美知子［高エネルギー加速器研究機構　助手

KEK史料室の現況報告

第Ⅰ部　本研究課題の成果報告　第4章関本 美知子 [KEK史料室

KEK 史料室 平成20年度活動報告

第Ⅰ部　本研究課題の成果報告関本　美知子[KEK 史料室