Speaker
SANG YONG KIM
(Seoul National University)
Description
RENO (Reactor Experiment for Neutrino Oscillation) has obtained the first measured value of effective neutrino mass difference from a spectal analysis of reactor neutrino disappearance. The measurement absolutely relies on the accurate energy calibration. Several radioactive sources such as Cs137, Mn54, Ge68, Zn65, Co60 Po-Be, Am-Be, and Cf-Ni, are used for the energy calibration of the RENO detectors. We obtained an energy conversion function from observed charges to prompt signal energy whch describes a non-linear response due to the quenching effect in liquid scintillator and Cherenkov radiation. We have verified the performance of the energy calibration using copious beta-decay events from radioactive isotopes B12 that are produced by cosmic-muon interaction.
The energy calibration was performed for the target and gamma-catcher regions separately due to their different energy responses.
In this presentation we describe the methods and results of the energy calibration.
Primary author
SANG YONG KIM
(Seoul National University)
Co-authors
ChangDong Shin
Mr
Dong ha LEE
(snu)
Dr
Eun-Joo Jeon
(IBS)
Hanil Jang
(Gyeongsang National University)
Hyunkwan Seo
(Sungkyunkwan University (KR))
Hyunsoo Kim
(Chonbuk National University (KR))
Prof.
In Gon Park
(Gyeonsang National University)
Intae Yu
(Sungkyunkwan University (KR))
JUNE HO CHOI
(Dongshin University)
Jae Yool Kim
(Chonnam National University (KR))
Mr
Jang Hee Yang
(Sungkyunkwan Universiy)
Dr
Ji-Seung Jang
(GIST)
Jongwan Kim
(S)
Dr
Jung sik Park
(snu)
Kyung Kwang Joo
(Chonnam National University)
Myoung Youl Pac
(Dongshin University (KR))
Mr
Ryoung Gyun Park
(Chonnam National University)
Seon Hee Seo
(Seoul National University (KR))
Siyeon KIM
(Chung Ang University)
Soo-Bong Kim
(Seoul National University)
Wonqook Choi
(Seoul National University)
Wooyoung Kim
(Kyungpook National University)
Yeongduk Kim
(Sejong University)
Young Il Choi
(Sungkyunkwan University (KR))
Youngju Ko
(Chung-Ang University)
insung yeo
(RENO collaboration, Chonnam Natinoal University)
