1. WELCOME TO IHEP

2. Spallation Neutron Source (Dongguan)
Employee: ~ 1500
Students： ~ 400
Visitors: ~ 400
Budget：~ 1.4 B RMB/year
Theoretical Physics
Spallation Neutron Source (Dongguan)
Computer center
Applied tech. center
Experimental Physics
Astroparticle physics
Accelerator Physics
Multi-discipline research

3. Mega-science Facilities
IHEP serves as the backbone of China’s mega-science facilities
In operation
Beijing Electron Positron Collider (BEPCII)
Beijing Spectrometer (BESIII)
Beijing Synchrotron Radiation Facility (BSRF)
Yangbajing Cosmic Ray Observatory: ASg
Daya Bay Neutrino Experiment
Under construction
China Spallation Neutron Source (CSNS)
High Energy Photon Source -Test Facility (HEPS-TF)
Hard X-ray Modulation Telescope(HXMT)
Accelerator-driven Sub-critical System (ADS)
Jiangmen Neutrino Underground Observatory (JUNO)
Under planning
HEPS, LHAASO, HERD, CEPC-SPPC…

4. 1） Beijing Electron-Positron Collider (BEPC)
The staring point of Particle Physics in China is the construction of BEPC in late 80’s
Upgrade of BEPC (BEPCII) is completed in It leads IHEP to be one of the most active HEP centers in the world.

5. BEPCII/BESIII: Operational since 2009
ADONE
BEPCII
CESRc
BEPC
SPEAR
DORIS I
e+e- collider at tau-charm
BEPCII luminosity reached its design parameters of 1×1033cm-2s-1 at an energy of 1.89 GeV on April 12, 2016.

6. BESIII Example: Discovery of Zc (3900)
> 8 
Y(4260)  +-J/
A charged charmonium state: 4 quarks !
M = (3899.0±3.6±4.9) MeV
 = (46±10±20) MeV
Opens a new way to fully understand XYZ particles
PRL110, (2013)

7. BESIII International Collaboration
EUROPE (14)
Germany: Univ. of Bochum,
Univ. of Giessen, GSI，Mainz，HIM
Russia: JINR, Dubna; BINP, Novosibirsk
Italy: INFN, Univ. of Torino, Frascati Lab, Ferrara Univ.
Netherland：KVI/Univ. of Groningen
Sweden: Uppsala Univ.
Turkey: Turkey Accelerator Center
Mongolia (1)
NEE
US (6)
Univ. of Hawaii
Univ. of Washington
Carnegie Mellon Univ. Univ. of Minnesota Univ. of Rochester
Univ. of Indiana
Korea (1)
Souel Nat. Univ.
China(38)
IHEP, CCAST, Shandong Univ.,
Univ. of Sci. and Tech. of China
Zhejiang Univ., Huangshan Coll.
Huazhong Normal Univ., Wuhan Univ.
Zhengzhou Univ., Henan Normal Univ.Peking Univ., Tsinghua Univ. , Zhongshan Univ.,Nankai Univ., Shanxi Univ., Sichuan Univ., Suzhou Uni., Hangzhou Normal Uni., Hunan Univ., Liaoning Univ. Henan Uni. of Sci. & Tech.,Nanjing Univ., Nanjing Normal Univ. Guangxi Normal Univ., Guangxi Univ. Hong Univ., Hong Kong Chinese Univ. Beijing Institute of Petro-chemical Technology, Southeast University, Sun Yat-sen Uni., University of Science and Technology Liaoning
Japan (1)
Tokyo Univ.
Pakistan (2)
Univ. of Punjab
COMSAT CIIT
63 institutions
~ 400 collaborators
India (1)
IIT

8. The Future: CEPC+SppC A project after BEPCII
Thanks to the discovery of the low mass Higgs boson, and stimulated by ideas of Circular Higgs Factories in the world, CEPC+SppC configuration was proposed in Sep
LTB : Linac to Booster
BTC : Booster to Collider Ring
BTC
IP1
IP2 e+ e-
e+ e- Linac
(240m)
LTB
CEPC Collider Ring(50Km)
Booster(50Km)
Medium Energy Booster(4.5Km)
Low Energy Booster(0.4Km)
IP4
IP3
SppC Collider Ring(50Km)
Proton Linac
(100m)
High Energy Booster(7.2Km)

9. 2）Daya Bay Reactor Neutrino Experiment
In March 2012, Daya Bay reported the measurement:
Sin22q13 =  0.016(stat)  0.005(syst)
Probability of non-zero q s
F.P. An et al., Phys. Rev. Lett. 108, (2012)
citations > 1600

10. 3) JUNO Overburden ~ 700 m Daya Bay NPP Taishan NPP Yangjiang NPP
Huizhou NPP
Lufeng NPP
53 km
Hong Kong
Macau
Guang Zhou
Shen Zhen
Zhu Hai
2.5 h drive
Overburden ~ 700 m
Kaiping,
Jiang Men city,
Guangdong Province

11. 4） China Spallation Neutron Source (CSNS) Civil construction May 2012, first beam @Nov. 2017
CSNS-I
CSNS-II
Beam power
(kW)
100
500
Repetition rate (Hz) 25
# of Target 1
current (A)
62.5
312
beam energy (GeV)
1.6
Linac energy (MeV) 80
250
Site: Dongguan, Guangdong

12. Birds View of CSNS May 11, 2016

13. 5） Accelerator Driven Subcritical System (ADS)
First 325MHz CW RFQ and its power source successfully commissioned.
ADS Injector I Proton Beam Reaches 14 low-b SC spoke cavities: on June 17, 2016
注入器 II
注入器 I

14. 6） Technology Transfer —— A Mission of IHEP
High-end Nuclear Medical Equipment
Breast-dedicated PEMi and SPEMi scanners,
Micro SPECT/CT scanner ,
Micro PET/CT scanner
Detection and Security Check Equipment
Three-dimensional microscope CT,
High energy industrial CT,
Gamma ray imaging device
Compact Accelerators
Electron accelerators for industrial radiation processing,
Medical accelerator,
Accelerator based ray source
Magnet-related Equipment
De-ironing separator,
Superconducting magnet separator,
MRI device, superconducting magnet

15. 7）Beijing Synchrotron Radiation Facility (BSRF)
5 Wigglers, 4 bending magnets
14 beamlines
15 end-stations
Dedicated mode: 2.5GeV/250mA
Parasitic mode: depending on HEP
Beamtime: ~2000 hrs/year
Proposals: ~500/year
Users: ~1800/year
Papers: ~300/year
An important experimental platform in north of China.
“Despite its limitations, the BSRF experimental station completed in 2002 has provided an excellent technological platform for structural genomics research.”
Prof. Zhihe Rao in “History of protein crystallography in China”, Phil. Trans. R. Soc. B (2007) 362, 1035–1042

16. BSRF Research Highlights
Structure of a spinach light-harvester
Metal-free efficient photocatalyst for stable visible water splitting
SCIENCE, 2015, 347(6225),
Prof. Kang Zhenhui, Soochow University
A new type of photocatalyst, a metal-free carbon nanodot–carbon nitride (C3N4) nanocomposite was reported, which comprises low-cost, Earth-abundant, environmentally friendly materials and shows excellent stability over 200 days.
NATURE (2004), 428, 287
Dr. Wenrui Chang, IBP
The first X-ray structure of LHC-II in icosahedral proteoliposome assembly at atomic detail.

17. 8） High Energy Photon Source
6GeV SR facility
Low emmitance: 0.06nm·rad
~1300m storage ring
48-7BA lattice
Brilliance: >1022phs/s/mm2/mrad2/0.1BW

18. 9） CMB observatory in Ali, Tibet
Approved in 2016
North hemisphere: providing possibility for realizing the whole sky coverage
altitude 5100m

19. Yangbajing International Cosmic Ray Observatory
10） From ASg/ARGO to Large High Altitude Air Shower Observatory (LHAASO)
Cosmic-rays physics and g-ray astronomy
Altitude ~ 4410 Sichuan
International collaboration: China, France, Italy, Thailand (Mahidol U.)…
Start construction: 2016
Yangbajing International Cosmic Ray Observatory
(ASg/ARGO)
LHAASO观测基地
装配大厅
S217
Sichuan
2019/5/4

20. 11） Current Space ProgramME LE HE
Hard X-ray Modulated Telescope (HXMT):
Total mass：1021kg; Power: 350 W
to be launched in 2017
Space Variable Object Monitor (SVOM)
Redefined program: On board Chinese spacecraft
A collaboration of China and France
to be launched in 2021
Gamma-ray Burst Polarization (POLAR):
onboard China’s Spacelab: TG-2
An international collaboration: China, Switzerland, France, Poland
Launched time: Sep. 15, 2016

21. High Energy cosmic Radiation Detection (HERD) @ the China’s Space Station
Science
Dark matter search: γ from 0.1 – 10,000 GeV
Spectral and composition measurements of CRs between 300 GeV to PeV
Complementary to LHAASO: directly measured composition & spectrum in space
Next generation cosmic-ray exp. after AMS & Fermi
Status
Groups from China，Italy，Switzerland，Sweden,…
Launch in ~2023
X0(λ)
∆E/E for e
e/p sep
e GF
200GeV
p GF
HERD (2020)
55(3) 1%
10-6
3.1
2.3
Fermi (2008) 10
12%
10-3
0.9 --
AMS02 (2011) 17 2%
0.12
DAMPE (2015) 31
10-4
0.3
CREAM (2015)
20(1.5)
0.2 21

22. Enjoy NNN16!