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Nuclear physics and facilities in China

Weiping LiuCIAE, China institute of atomic energy

IUPAP WG9 symposium, TRIUMF, VancouverJuly 2, 2010

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Facilities in China(Not complete)

• Nuclear physics– CSR Lanzhou– HI-13/BRIF Beijing

• Particle physics– BEPCII Beijing– More can be heard from Prof. Zhan’s talk

• Application– SSRF Shanghai, BEPCII Beijing, and USTC Heife

i, synchrotron radiation facilities– CARR and CSNS, neutron facilities

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Scope of study• Nuclear physics with stable nuclei

– SHE– Reaction and structure

• Nuclear physics with unstable nuclei – Reaction– Structure– Nuclear astrophysics

• Funded by– MOST, 973– NSFC– CAS, MOE, CAEA, and other funds

• Societies and meetings– NN2009, held in Beijing in August 16-21, 2009– China nuclear physics society

ExperimentalIMP, CSR, HI physicsCIAE, HI-13, BRIF, low E NPOther: IHEP, SINAP, PKU, USTC and others

TheoreticalAll institutes abovePKU, THU, plus other universities

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Two major facilities in nuclear physics

BeijingBRIF, BRIF II ,

Low E HI, RIB, 2013Lanzhou, CSRMed E HI, RIB, 2008

5/23

Research activities• Physics

– Reaction and others• around coulomb in Beijing, few tens MeV A at Lanzhou and RIKEN• SIAP: Lanzhou exp, for total cross section 23Al, 27P and 17F, Riken exp, 23Al; 2p emi

ssion in Lanzhou for CIAE • reaction 17F+12C at CNS and near barrier and fusion, in CIAE• PKU: 17Ne, 16C Lanzhou, 6He and 8He in RIKEN, transfer and breakup• CSR mass measurement in Lanzhou

– Decay, and the PKU for beta-n, 21N– In-beam gamma exp, CIAE, Lanzhou, Jilin, TU, PKU, stale nuclei– Nuclear astrophysics, indirect and direct and decay, in CIAE, Lanzhou, TRIU

MF and CNS– Super heavy elements: mainly performed in Lanzhou– 1st Observation of antimatter hyper-nucleus: RHIC STAR-SIAP– Many theoretical activities

• Detector– Good collaboration in gamma array: Beijing-Lanzhou– Charged particle array, Lanzhou, CIAE and PKU– PKU for beta-n decay– Neutron detection wall, Lanzhou and PKU– Gas fill separator for SHE in Lanzhou

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Recent research highlights

26Mg+243Am266Bh+3n

E=9.03±0.08 MeV

T1/2=0.66s

5 6 7 8 9 100.00

0.05

0.10

0.15

0.20 Theory experiment

B(G

T)

Energy(MeV)

21N

7/23

Detector developments

8/23

CSR in Lanzhou

9/23

Introduction to HIRFLIntroduction to HIRFL

N

CSRm

CSRe

SFC

SSC

ECR: keV

SFC: 10 AMeV (H.I.), 17~35 MeV (p)

SSC: 100 AMeV (H.I.), 110 MeV (p)

CSRm: 1000 AMeV (H.I.), 2.8 GeV (p)

RIBLL1: tens AMeV (RIBs)

RIBLL2: hundreds AMeV (RIBs & HCI)

RIB

LL

2

RIB

LL

1

ECR

Stable BeamsStable Beams

Radioactive BeamsRadioactive Beams

HIRFL: Heavy Ion Research Facilities HIRFL: Heavy Ion Research Facilities in Lanzhouin Lanzhou

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1993 Original idea

1996 Proposal

1998 Approved

2000-2005 Construction

2006-2007 CommissioningCommissioning

2008-2009 2008-2009 Operation & Experiments

History of CSRHistory of CSR

11/23

BRIF in Beijing

12/23

BRIF(Beijing rare ion beam facility)

Cyclotron

ISOL

Tandem

SCL

100 MeV 200 A compact proton cyclotron20000 mass resolution ISOL, 2 MeV/q super-conducting LINACAlready funded, but requiring additional supplementBrief idea in 1990, supported in 2004 Available in 2011-2012

13/23

RIB intensity expected

14/23

Project Milestone

• Original idea in 1990• Evaluation in 1997• Project approved in 2003• Feasibility plan approved ($27 M) in 2004• First budget ($20 M) come to CIAE in 2005• Renewed feasibility plan finished in 2006• Revised feasibility plan submitted in 2008• Revised feasibility plan got permission in Aug. 2009

($52 M) • Project design report approved in July 2010• Deliver to user in 2013

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BRIF status in 2010

• Cyclotron: magnet rough finished, with detailed fabrication finished

• ISOL: design finished, target-source area in progress

• SC linac: design finished, all the fabrication in progress

• Civil engineering will start by the end of the year

16/23

Engineering layout

17/23

3D internal structure of proton cyclotron

18/23

Magnet design and fabrication

19/23

CARR and CSNS

20/23

power 　 MW　

flux 　 n/(cm2·s)

ＩＬＬ ５７ １ . ２ 1014

ＣＡＲＲ ６０ ８ l014

ＦＲＭ－ＩＩ ２０ ８ l014

CARR get its first criticality in May 13!

CARR: China Advanced Research Reactor

21/23

Residual stress diffractometer cooperated with Switzerland

Neutron physics:Neutron scattering

22/23

CSNS in Guangdong

23/23

Conceptual of CARIF• China Advanced Rare Ion-beam Facility

CARR反应堆

ISOL同位素分离器

LINAC直线加速器

FRS次级束流线

Halor processMagic

nth

130Cd, 78Ni, 138Sn

8x1014cm2s-1108-9pps 107-8pps

300 keV

10 MeV/A

150 MeV/A

132Sn, 91Kr, 142Xe

SHEReactionStructure

102-3pps

50 MeV/A

Fission beam T1/2 N/Z132Sn, 39.7 s, 1.6491Kr , 1.8 s, 1.53142Xe, 1.22 s, 1.63

132Sn, 91Kr, 142Xe

Stable beam N/Z238U, 1.5748Ca , 1.4136Xe, 1.52

Fragmentation of fission product can result highly

n-rich ion beam!

132Sn, 91Kr, 142Xe

91Kr 132Sn

I. Tanihata, NIM B266(2008)4067

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Summary

• Nuclear physics in China developed rapidly, driving by CSR, BRIF, CARR, and future facilities and research projects

• CSR, BRIF and new project will open up exciting research opportunities in nuclear physics

• We would like to collaborate with foreign colleagues, especially for the active research and recruiting of user groups after the facility commission