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Progress of SRF and ERL at Peking University

Progress of SRF and ERL at Peking University. Lu Xiangyang Institute of Heavy Ion Physics Peking University. OUTLINE By the supports of both National Basic Research Project (973) and Peking University, in recent years, the SRF Group, IHIP, PKU, are keeping the studies on SRF and ERL of:

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Progress of SRF and ERL at Peking University

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  1. Progress of SRF and ERL at Peking University Lu Xiangyang Institute of Heavy Ion Physics Peking University

  2. OUTLINE By the supports of both National Basic Research Project (973) and Peking University, in recent years, the SRF Group, IHIP, PKU, are keeping the studies on SRF and ERL of: • The study of cavity performance upgrade • The upgrade of PKU DC-SC photo-injector • The study of manufactory of TESLA 9-cell cavity • The study of ERL-FEL

  3. cavity upgrade I. The study of cavity performance upgrade Recent Nb SRF cavity is required to perform *Higher acceleration field *Higher Q and *lower cost. To reach those requirements, SRF people are focus on: *The development of new cavity shape *The application of new Nb material *The development of new post processes

  4. cavity upgrade Based on the former studies on SRF and the evolvement of Chinese industrial Nb production, Peking University allied with OTIC, Ningxia do the effort together on the upgrade of cavity performance by the application of Chinese Nb material, especially on the application of large grain size and single crystal Nb sheets.

  5. cavity upgrade • Since 2005, PKU, OTIC and JLab started the co-operation of the cavity performance study which made of OTIC large grain size Nb sheets. large grain size Nb sheets, OTIC

  6. cavity upgrade The single cell cavity made of OTIC LGNb, PKU

  7. cavity upgrade The 2-cell test cavity made of LGNb, PKU

  8. cavity upgrade Test results of 1.5GHz single cell cavity made of OTIC LGNb (by JLab).

  9. cavity upgrade Since 2006, OTIC have got the success of produce the single crystal Nb sheet. PKU is making a single cell test cavity use such material. The sample sheet The formed half cells (after BCP,90m)

  10. cavity upgrade Elongation property study of single crystal Nb sheet EBSD test of SCN before and after rolling

  11. DC-SC injector II.The upgrade of DC-SC photoinjector 2002－2004，The idea of DC-SC had proved. The injector prototype is operated and tested. Under 4.5K, the beam energy gain is 1MeV, emmitance is 5 m,the highest current is 1 mA. 2004, DC-SC Photoinjector is collected by “RF SUPERCONDUCTIVTY-2004”, NSF, USA。 Since 2005，the upgrade of DC-SC photoinjector was launched。The major improvements are: The cavity from 1+1/2 to 3+1/2 cell, Eacc20MV/m. DC gun voltage up to 150kV. Redesign 2Kcryostat Expected properties： 5MeV, 1 5mA, 3 m.

  12. DC-SC injector

  13. TESLA Cavity & Accelerator module III. Development of home made TESLA type cavity and SRF accelerator module China needs SRF accelerator. PKU and OTIC launched the project of the development of SRF module We start from very beginning: *The Nb sheets preparation and test *The art of deep drawing and EBW of TESLA type 9－cell cavity *The post process of TESLA type 9－cell *The RF measurement and tuning of TESLA type 9－cell cavity *The technical of 2K cryostat

  14. The study of manufactory TESLA type 9-cell cavity

  15. 2k cryogenic system

  16. Accelerator module

  17. The designed parameters of the module Accelerator module

  18. PKU-ERL-FEL IV. PKU-ERL-FEL Draft design of PKU-ERL-FEL facility

  19. PKU-ERL-FEL parameters PKU-ERL-FEL

  20. PKU-ERL-FEL PKU-ERL-FEL Facility concept

  21. Welcome to SRF 2007, Peking University ! Thank you !

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