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1–7 Jun 2014
Boston University
US/Eastern timezone

Monitoring stability of Gd-loaded liquid scintillator at RENO

Not scheduled
Metcalf Auditorium (Boston University)

Metcalf Auditorium

Boston University

George Sherman Union 775 Commonwealth Ave. Boston, MA 02215
Board: 140
Poster Reactor Neutrino Oscillations

Speaker

Ms Sunheang So (Chonnam National University)

Description

Reactor experiment for neutrino oscillation (RENO) began data-taking from August 2011. It successfully observed reactor anti-neutrino disappearance in April 2012 to measure the smallest mixing angle of theta13. Two identical detectors, one at near location and the other at far location, are constructed at the Yonggwang nuclear power plant in South Korea, to compare the observed reactor neutrino fluxes. The RENO detector consists of four concentric cylindrical layers: the target, the gamma-catcher, the buffer, and the veto. Each RENO detector is filled with 16 mass tons of Gadolinium-loaded liquid scintillator (GdLS) in the neutrino target region, and with 28 mass tons of unloaded liquid scintillator (LS) in the gamma-catcher region surrounding the target. LS was developed to satisfy chemical, physical, optical properties, and safety requirements. Linear alkyl benzene (LAB) was chosen as a solvent because of its high flash-point, sufficient light yield, and being environmentally friendly. GdLS is carefully developed to keep a long attenuation length and high light yield for a longtime period. GdLS has not shown any hint of degradation or instability for more than 2 years. In this poster, characteristics and mass production of the RENO LS and GdLS will be reviewed.

Primary author

Ms Sunheang So (Chonnam National University)

Co-authors

Mr Baro Kim (Chonnam National University) Dr Byounghon Lee (Seoul National University) Mr Changdong Shin (Chonnam National University) Dr Eunju Jeon (IBS/Sejong University) Prof. Hanil Jang (Seoyeong University) Dr Hyunkwan Seo (Seoul National University) Prof. Hyunsoo Kim (Chonbuk National University) Prof. Ingon Park (Gyeongsang National University) Mr Insung Yeo (Chonnam National University) Prof. Intea Yu (Sungkyunkwan University) Prof. Inteak Lim (Chonnam National University) Prof. Jaeyool Kim (Chonnam National University) Mr Janghee Yang (Sungkyunkwan University) Mrs Jeeseung Jang (Gwangju Institute of Scinence and Technology) Mr Juneho Choi (Dongshin University) Dr Jungsic Park (Seoul National University) Prof. Kyungkwang Joo (Chonnam National University) Prof. Myoungyoul Pac (Dongshin University) Mr Ryunggyun Park (Chonnam National University) Mr Sangyoung Kim (Seoul National University) Dr Seonhee Seo (Seoul National University) Mr Seungchan Kim (Chonnam National University) Prof. Siyeon Kim (Chung Ang University) Prof. Soobong Kim (Seoul National University) Ms Sookhyung Song (chonnam National University) Mr Sungyu Lee (Seoul National University) Prof. Sunho Choi (Seoul National University) Mr Woonkuk Choi (Seoul National University) Prof. Wooyoung Kim (Kyungpook National University) Prof. Yeongduk Kim (IBS/Sejong University) Mr Younggeun Sun (Kyungpook National University) Prof. Youngil Choi (Sungkyunkwan University) Mr Youngju Ko (Chung Ang University)

Presentation materials