Post on 14-Jan-2016
description
Potential sites of Deep Sea Anti-Neutrino Detector
around Taiwan
M.A. Huang1 & H.T. Wang2
1 General Education Center, National United University, Miao-Li, Taiwan, 360
2 Institute of Physics, Academia Sinica, Taipei, Taiwan, 115
M.A. Huang 1
DOANOW workshopMarch 23-25, 2007
KAW4, 5/19/206 M.A. Huang
Nu physics and astrophysics in Taiwan
• Experimental– TEXONO: Academia
Sinica– DYB: NTU, NCTU, NUU– CRTNT: NUU
• Theoretical – NCTU, NCTS– NUU
TEXONO, Academia Sinica
DYB, NTU
NCTU, NCTS
NUU
CRTNT, NUU
KAW4, 5/19/206 M.A. Huang
TEXONO Collaboration
Collaboration : Taiwan (AS, INER, KSNPS, NTU) ; China (IHEP, CIAE, THU, NJU) ; Turkey (METU) ; USA (UMD)
Program: Low Energy Neutrino & Astroparticle Physics
Kuo-Sheng (KS) Reactor Neutrino Laboratory
Taiwan EXperiment On NeutrinO
KS NPS-II : 2 cores 2.9 GW
KS Lab: 28 m from core#1
NPS-IV (under construction)
• Neutrino magnetic moments,– PRL, 90, 2003; hep-ex/0605006
• Axion searches – Astro-ph/0609001,
• Nu-e cross sections – Undergoing analysis
• Ultra-Low-Energy HPGe Prototype – ~100 eV, 4x5g detector, working on1 kg detector.
– Nu-N coherent scattering
– Dark matter searches
KAW4, 5/19/206 M.A. Huang
TEXONO Physics topics
1/8-10/2007 M.A. Huang
CRTNT• CRTNT : Cosmic Ray Tau Neutrino Telescope
– Detect shower from , which comes from Earth-skimming
Z. Cao et al., J. Phys. G, 31, 571-582, (2005) Highlight paper of the year 2005 by J. Phys. G
1/8-10/2007 M.A. Huang
Future plan of CRTNT4 stations, each have telescopes, cover 1664 field of view. Site: Balikun, Hsing-JiangEnergy range: E > 100TeV for neutrino, and E > 0.1EeV for UHECR.
UHECR
Mountain-passing event
C
Earth-skimming event
Daya Bay collaborators in Taiwan
• Nat’l Taiwan Univ. – PI: Yee Bob Hsiung– Acrylic vessel
• Nat’l Chiao Tung Univ.– PI: G.Y. Lin
• Nat’l United Univ.– PI: C.H. Wang– Y. Chang, S. Blyth
1/8-10/2007 7
Muon veto simulation, Aberdeen Tunnel prototype
Potential sites near Taiwan
• Selection requirements:– Near nuclear power plant
~ 60 -100 km.
– Depth < -2.6 km (~ 1 km of std. rock)
– Distance to nearest harbor
• Logistic support
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Nuclear Power Stations
3 existing NPS, all have two cores.
NPS-1: 2 1775 MWt
NPS-2: 2 2894 MWt
NPS-3: 2 2785 MWt
NPS-4 in construction.
NPS-4: 2 4100 MWt ; Finish in 2009~ 2101
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Northern Taiwan sites
M.A. Huang 10
NP-1,2 are too far!
only-1600 m
Northern Taiwan
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NP-4 is within 100 km!
Site A:-3500 m
only-1600 m
Southern Taiwan
112/04/21 12
Site D:-3000 m
Site C:-2500 m
Site B:-2500 m
Site E:-4000 m
SummarySite A B C D E
Depth < -2.5 < -3 -2.5 ~ -3.5
-2.5 ~ -3.5
< -3
Distance to harbor
30-40 km,Su-Ao
20 km,Orchid Island;70 km TaiDung
20 km,Orchid Island;120 km, TaiDung
110 km, DongKang
160 km, TaiDong or DongKang
Other issues NPS-4 (2010) 2x4.1GWCombined signals of NPS-1,2,4
Strong current
Strong current
River sediments
Close to Philippine
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NPS-3: 2 2785 MWt
Future participation in HANOHANO• If HANOHANO site is near Taiwan, we would be
the host and provide local supports.– Site survey– Application/permission to government– Local control – Data transmission, storage, … etc.
• If not, …– HANOHANO is a good continuation of DYB,
someone may still participate.• Need consensus from colleague in Taiwan
– HEP community, geo-physicists, funding agency, publics.
M.A. Huang 14