부산대학교 도서관

We propose a new experiment on the site of the Korea Atomic Energy Research Institute (KAERI)located at Daejeon, Korea. The Hanaro short baseline (SBL) nuclear reactor with a thermal poweroutput 30 MW is used to investigate a reactor neutrino anomaly. A Hanaro SBL prototype detectorhaving a 60-l volume has been constructed 6 m away from the reactor core. A gadolinium (Gd)-loaded liquid scintillator (LS) is used as an active material to trigger events. The selection of theLS is guided by physical and technical requirements, as well as safety considerations. A linearalkyl benzene (LAB) is used as a base solvent of the Hanaro SBL prototype detector. Three g/lof PPO and 30 mg/l of bis-MSB are dissolved to formulate the LAB-based LS. Then, a 0.5%gadolinium (Gd) complex with carboxylic acid is loaded into the LAB-based LS by using the liquidliquidextraction method. In this paper, we will summarize all the characteristics of the Gd-loadedLAB-based LS for the Hanaro prototype detector.