Input from TEXONO on Reactor 13

Experimental Particle Physics in Taiwan

TEXONO Program Overview

Kuo-Sheng( 國聖 ) Reactor Site for 13

Henry T. Wong / 王子敬

Academia Sinica /中央研究院

@ HKG -03

Experimental Particle Physics in Taiwan

Academia Sinica ( 中央研究院 ) : CDF@Tevatron@Fermilab AMS@Space Shuttle & Station TEXONO Program on Neutrino Physics in Taiwan LEPS@SPring8 ATLAS@LHC@CERN Future : GRID Computing , Sonoluminescence ……….

National Taiwan University ( 台灣大學 ) : Belle@KEKB@KEK CMS@LHC@CERN Future : Rare K@KEK/J-PARC , -telescope …………..

National Central University ( 中央大學 ) : L3@LEP@CERN PHOBOS@RHIC@BNL CMS@LHC@CERN

+ Satellite Institutes

+ closely-connected Theory, Astronomy , Space Program, Sync. Rad. … communities

…… started late 80’s

TEXONO* CollaborationW.C. Chang, K.C. Cheng, M.H. Chou, H.C. Hsu, C.H. Iong, G.C.Jon, F.S. Lee,

S.C.Lee, H.B. Li, V. Singh, D.S. Su, P.K.Teng, H.T.K.Wong,  S.C. Wu Academia Sinica, Taipei, Taiwan

W.P. LaiChung Kuo Institute of Technology, Taipei, Taiwan

C.H. Hu, W.S. Kuo, T.R. YehInstitute of Nuclear Energy Research, Lungtan, Taiwan

H.Y. Liao, S.T. Lin, M.Z. WangNational Taiwan University, Taipei, Taiwan

F.K. LinNational Tsing Hua University, Hsinchu, Taiwan

Z.M. Fang, R.F. SuNuclear Power Station II, Kuosheng, Taiwan

J. Bao, K.J. Dong, S. Jiang, L. Hou, Y.H. Liu, H.Q. Tang, B. Xin, Z.Y. Zhou

Institute of Atomic Energy, Beijing, ChinaJ.Li, Y. Liu, J. Nie, Z.P.Mao, J.F.Qiu, H.Y.Sheng, P.L.Wang,

X.W. Wang, D.X.Zhao, P.P.Zhao, B.A.Zhuang 　 Institute of High Energy Physics, Beijing, China

J.Q. Lu, T.Y. ChenNanjing University, Nanjing, ChinaY. An, D.Z. Liu, Q. Yue, Y.F. Zhu

Tsing Hua University, Beijing, ChinaC.Y. Chang, G.C.C. Chang

University of Maryland, Maryland, U.S.A.

Co-Prinicipal Investigators Ph.D. Students *Taiwan EXperiement On NeutrinO ( 台灣微中子實驗 )

Home Page @ http://hepmail.phys.sinica.edu.tw/~texono/

HISTORYInitiate : Chang Chung-Yung 1996First Collab. Meeting/Official Start : October 1997First Paper : October 1998KS Reactor Experiment Installation : June 2000First Ph.D. : Liu Yan , July 2000First Physics Data Taking : June 2001.First Physics Results: Dec 2002.

TEXONO Overview

Poineering Efforts : “Zero-Background Experiment” ! KS Expt: 1st large-scale particle physics experiment in Taiwan

TEXONO Coll. : 1st big research Coll. % Taiwan & China

[feature report in Science, Vol. 300, 1074 (2003) ]

Program:Kuo-Sheng Reactor Neutrino Laboratory

※ reactor : high flux of low energy electron anti-neutrinos

※ m0 anomalous properties & interactions

※ physics full of surprises , need intense -source

study/constraint new regime wherever experimentally accessible

explore possible new detection channels

R&D Projects

Kuo-Sheng Nuclear Power Plant

KS NPS-II : 2 cores 2.9 GW

KS Lab: 28 m from core#1

Kuo Sheng Reactor Neutrino Laboratory

Front Gate

Configuration: Modest yet Unique

Flexible Design: Allows different detectors conf. for different physics

Inner Target Volume

Front View (cosmic vetos, shieldings, control room …..)

KS Expt: Period I Detectors

FADC Readout

[16 ch., 20 MHz, 8 bit]

ULB-HPGe [1 kg] CsI(Tl) [46 kg]

Multi-Disks Array [600 Gb]

Kuo Sheng Reactor Neutrino Laboratory : First Res

ults

Reactor (e) Sensitivities

Sensitivities

Coverage in International Press

Reactor Neutrino Interaction Cross-Sections

P3+: Coh. (N) < 1 keV

P1: MM (e) 1-100 keV

P2: SM(e) > 2 MeV

R&D Projects Explore New Detectors Scenarios (LE, CDM …)

other crystal scintillators

ultra low energy HPGe [ O(100 eV) threshold ]

CsI(Tl) for Dark Matter Searches

CsI(Tl) CDM search @ Korea by KIMS Coll.

Upgrading FADCs (+ FPGA etc. capabilities…..)

for LEPS @ SPring8

Trace Radio-purity with AMS ( Accelerator Mass Spectrometry)

1st goal : sensitivity of 10-14 g/g in 40K

Sono-Luminescence Project (inter-disciplinary)

Kuo-Sheng + Wan-Li Site

Geographically possible for medium baseline experiment for “13”

Merits / Our Offer :

Easy reach from city Access to Plant established Road tunnel at 2 km 100 m rock overburdenContacts with International Team

Date: Wed, 21 May 2003 16:36:25 +0800 (CST)  From: Henry Tsz-king Wong <htwong@phys.sinica.edu.tw>      To: ……………………….Subject: Re: Future Reactor Experiments

……..

 We are aware of this possibility and havediscussed a bit among ourselves. Our thinking isthat we will not just  "go out and do the experimentourselves." (we are busy with ongoing things, andthe required resources will be beyond what we can have on our own). However, if therewould be an internationalteam who would bring in a strong scientific case andsubstantial resources, we would be interested to explore the scenario of performing such an experimentin Taiwan. A 1% measurement of the reactor spectra isvery tricky, and I agree that having too many coresmay not be a positive aspect.…………….

TEXONO’s standpoint/position ::

Possibility and Offer Raised to International Study Group :

…. a 140 page document !!!

 "B2" is the space at sub-basement 80 m from one of the cores. It can be considered "generically" what one can expect -- i.e. there are other buildings in the plant that may have similar space at the same level. Distances from the two cores would be different of course.

Site(28 m) is the  "mirror" site to our present lab at the other core

Site(23 m) is some storage space we have now. It is at the 4F of the reactor building.

site-views give a general impression of the plant. You can see it is spacious to bring in containers .... etc. Also see the slopes -- and the  "no digging“ sign.

Wanli ( 萬里 ) Tunnel is the road tunnel 2 km from the plant. We make close and far views. There are three auxillary tunnels (one shown).

Taiwan Experimental Particle Physics a small & young but vibrant community TEXONO Collaboration Built-Up and Growing Kuo-Sheng Neutrino Lab.: Established & Operational Physics Data Taking since June 01

Results published on () More topics under way Diversified R&D Program in parallel Reactor 13 experiment : Kuo-Sheng Plant+Wan-Li Tunnel submitted for consideration Our hands are tight, but we keep our mind, eyes & heart open

Summary & Outlook

Hidden/higher agenda of this meeting besides/beyond neutrinos ??

VALUE of the project not only on the scientific contents BUT also the infrastructures/traditions it can build up

Some Personal Thoughts : (forgive me if I am incorrect)