Plan of Nanjing Proton Source Highcurrent Superconducting Proton

Plan of Nanjing Proton Source (High-current Superconducting Proton Source) Sun An On behalf of Nanjing Proton Source Team Workshop on Hadron Physics in China and Opportunities Worldwide, July 24 -29, 2017, Nanjing University

2 Contents 01 Project purpose 02 Concept design 03 Construction choice 04 Project situation 05 Future plan

01 Project Purpose ü Discover the charged lepton flavor violation process and the fifth force, looking for new physics beyond the particle physics standard model. ü Study nuclear symmetry energy, explore structure and properties of neutron star, numbers of nuclei, provide data for both nuclear structure and astrophysics. ü Study the proton low energy spectrum of the cosmic ray. Measure the low-energy proton scattering cross section for dark matter detection to exclude cosmic rays from the background. ü Research the proton irradiation material physical and evolution experiments, develop the proton application in the field of the materials science, biomedicine, nuclear engineering, aerospace and other fields. ü A high-current proton accelerator outputting the low-, middle- and high-energy beam with the different current is need for discovering above Science & Technology issues. 3

01 Project Purpose Application field of the proton beam E（Me. V） 3. 5~20 20~230 230~400 Application field Nuclear symmetry energy and fifth force , Material Test with High Current Beam, RI Production, BT, ST, Detector Test, Space Radiation Effect, Liquid, Powder Sample Available, Power Semi. Device Development, Semiconductor Application, BNCT, Low Energy Neutron Source, Industrial Application for Mass Production etc. Nuclear symmetry energy and fifth force , proton low energy spectrum, Material Test with High Current Beam, RI Production, BT, ST, Detector Test, Space Radiation Effect, Liquid, Powder Sample Available, Proton Therapy, Medical Applications, Neutron Source, Nuclear Material Test, Nuclear Data Measurement, Industrial Application for Mass Production etc. Nuclear symmetry energy and fifth force , proton low energy spectrum, Material Test with High Current Beam, RI Production, Detector Test, Space Radiation Effect, Proton Therapy, Medical Applications, Neutron Source, Nuclear Material Test, Nuclear Data Measurement, Industrial Application for Mass Production etc. 4

01 Project Purpose Application field of the proton beam E（Me. V） 400~600 600~800 800~1000 Application field Nuclear symmetry energy and proton low energy spectrum, Material Test with High Current Beam, RI Production, Detector Test, Space Radiation Effect, Medical Applications, Neutron Source, Nuclear Material Test, Nuclear Data Measurement, ADS, Industrial Application for Mass Production etc. Proton low energy spectrum, Material Test with High Current Beam, RI Production, Detector Test, Space Radiation Effect, Medical Applications, Neutron Source, Nuclear Material Test, Nuclear Data Measurement, ADS, Industrial Application for Mass Production etc. Charged lepton flavor violation, Proton low energy spectrum, Material Test with High Current Beam, RI Production, Detector Test, Space Radiation Effect, Medical Applications, Neutron Source, Nuclear Material Test, Nuclear Data Measurement, ADS, Industrial Application for Mass Production etc. 5

01 Project Purpose 6

01 Project Purpose Accelerator’s Specifications 7 Utility's Specifications Particle Proton Particle for Users Proton Max. Output Energy 400 or 1000 Me. V Beam energy 3. 5~1000 Me. V Ib-pk 26 m. A Beam current range 10 µA ~26 m. A Duty factor 20% End number for Users 36+1 Frequency 806 MHz Number of experience hall 6 Peak beam-power 26 MW Energy control Deaccelaring board and EF Max. Average power 5. 2 MW Target Samples and detector Linac type SRF Users Research and R$D for industry

01 Project Purpose 8

02 Concept Design 9 Accelerator and beam lines（400 Me. V） SRF Linac Detector Beam line Beam divider RFQ Sample exchanger LET DTL

02 Concept Design 10 Accelerator and beam lines（400 Me. V） Hall 2 Hall 1 18+1 User ends

02 Concept Design Accelerator （400 Me. V） 11

02 Concept Design 12 Beam lines Ø Composed of the beam-transfer magnets (dipole magnets), focusing magnets (quadrupole magnets), energy-scattered correction magnets (six-pole magnets), decelerating structures and beam splitting structures Ø The user ends are going to be used as the KOMAC schedule. KOMAC beam lines Alloy beam-window KOMAC installation cell KOMAC testing plat

02 Concept Design 13 Facility to discover the lepton flavor violation process π and μ production target detectors Stop-target Proton beam A. Proton beam of the 1000 Me. V injects to the graphite target and produces π meson and muon, π will decay to be μ. B. Muon and other particles through a S shape beam line with a length of 50 meters, and the pure muon beam is obtained. C. Muon injects on the aluminum target and produces electron and photon etc. D. Detectors will measure the particle’s energy and momentum, and get the results.

02 Concept Design 14 Budget Facility Parameters Quantity Price （ Million RMB） Accelerator Output energy: 400 Me. V Beam current: 26 m. A Duty fator: 20% 1 1370 Based on SNS SRF linac Beam line For 18 user ends 3 150 Based on KOMAC beam lines User end As KOMAC 18 150 Based on KOMAC user ends 1 150 estimation Facility for charged lepton flavor violation test Total 1. 82 Billion RMB Note

03 Construction choice 1、KOMAC schedule 100 Me. V Beam Lines 20 Me. V Beam Lines 1、Linac + beam facility 2、Two periods： （1）100 Me. V（completed in 2013）； （2）1000 Me. V（under R&D） 3、Land schedule： 1200 m x 500 m 15

03 Construction choice 2、CEBAF schedule 1、double linac + Synchrotron + beam facility 2、Two periods： （1）400 Me. V； （2）1000 Me. V 3、Land schedule： 800 m X 600 m 16

03 Construction choice Plan Key parameters 17 Period Cost Land Plan Output energy： 100 Me. V User-end’s number： 10 1 7 years ~1. 5 Billion RMB 200 X 500 m 2 Plan Output energy： 260 Me. V User-end’s number： 15 2 8 years ~2. 7 Billion RMB 320 X 500 m 2 Output energy： 400 Me. V Plan User-end’s number： 3 18+1 8 years ~4. 5 Billion RMB 600 X 500 m 2 ~8. 0 Billion RMB 1600 X 500 m 2 or 800 X 600 m 2 Output energy： Plan 1000 Me. V 4 User-end’s number： 36 12 years

04 Project Situation 1、Hardware 1 R&D: Accelerator Center of Nanjing University 2 Production center: Proton Source R&D Center Accelerator Center Proton Source R&D Center With an area of 17000 m 2 18

04 Project Situation 1、Hardware 19

04 Project Situation 20 2、R&D of the Accelerator Ion Source Feedthrough SSA SRF Cavity Al. Mg Alloy gasket BPM Digital LLRF Profile

04 Project Situation 21 3、Proton Source Project is approved by Ministry of Education.

04 Project Situation 4、R&D Team Group leader: Chen Jun (President of Nanjing University) Administration: Pan Yi (Vice president), Li Chen, Yu Anbin, Zang Wencheng etc. Accelerator: Sun An, Zhang Liping, Xiao Lin, Zhou Bowen, Ke Yijing, Yan Zhang, Guoxin Xia etc. Physics: Fan Wang, Hongshi Zong， Zuowei Liu，Chang Xu, Shenjian Chen, Bolin Li etc. 22

05 Future Plan 1. CDR and TDR 2. Site choice 3. Obtain the funding from local and Central government 4. R&D of the Accelerator and beam line 5. Construction 6. Commissioning We are looking forward to collaboration over world and your supports! 23

Thank you for your help and supports！