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1/23
Nuclear physics and facilities in China
Weiping LiuCIAE, China institute of atomic energy
IUPAP WG9 symposium, TRIUMF, VancouverJuly 2, 2010
2/23
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
3/23
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
4/23
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
6/23
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
10/23
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
15/23
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
24/23
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