reno-50 site
Post on 24-Feb-2016
64 Views
Preview:
DESCRIPTION
TRANSCRIPT
RENO-50 Site
June-Ho Choi (Dongshin University)
RENO-50 International workshop (June. 13 ~ 14) Seoul National University
Determination of mass hierarchy Dm213
Neutrino burst from a Supernova in our Galaxy : ~1500 events (@8 kpc) Geo-neutrinos : ~ 300 geo-neutrinos for 5 years Solar neutrinos : with ultra low radioacitivity Reactor physics : non-proliferation Detection of T2K beam : ~120 events/year Test of non-standard physics : sterile/mass varying neutrinos
Requirements for site - low cosmic background : sufficient overburden - low other reactor interference - optimal distance from the reactor cores
Physics with RENO-50
Optimal distance
Max. sensitivity
Reduction of sensitivity
Due to Small flux
Small differencebtw NH and IH
Yoshitaro Takaesu (KIAS/KNRC) : arXiv: 1210.8141
Multi-reactor interference
All Reactors
16.5GW 5kton 10yrs
a = 3%, b = 0.5%
Yoshitaro Takaesu (KIAS/KNRC) : arXiv: 1210.8141
YongGwang only
Other reactor sitesinfluence the sensitivity.
Multi-reactor interference
Distributions ofEach Reactorsconsidered
Reactors direction strongly affects the sensitivity.
16.5GW 5kton 10yrs
a = 3%, b = 0.5%
Including Planned Reactors
Yoshitaro Takaesu (KIAS/KNRC) : arXiv: 1210.8141
NaJu
Reactor site
RENO-50 candidate site
NaJu
Reactor site
RENO-50 Candidate Site
Mt. KumSungAltitude : 450 m
RENO-50 Candidate Site
RENO-50 Candidate Site
Dongshin University
Mt. KumSungAltitude : 450 m
Survival probability
NHIH
Survival probability
Summary
Optimal candidate site - Mt. Kumsung with 450 height - >2σ level for determination of mass hierarchy
Under careful survey for excavation point
top related