Update at Peking University Jiankui Hao & Kexin Liu Institute of Heavy Ion Physics Peking University, Beijing 100871 LCC-ILC-Cavity Meeting March 04, 2015.

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Presentation transcript:

Update at Peking University Jiankui Hao & Kexin Liu Institute of Heavy Ion Physics Peking University, Beijing LCC-ILC-Cavity Meeting March 04, 2015

Second 7-cell CEBAF cavity (PJN7-2) PKU/JLAB/OSTEC Collaboration 1 st test at Jlab by Rongli Geng –BCP 120  m –Heat treatment: 600  C, 10 h –EP 30  m –HPR –Bake: 120  C, 48 h

35 MV/m, Q 0 =8E9, at 2 K

A. Ermakov et al. Journal of Physics: Conference Series 97 (2008) Studies of Thermal Conductivity of Ningxia Large Grain Niobium

sample Company treatment (  C) NX1OTIC- HR1Heraeus- NX2OTIC800 HR2Heraeus800 NX3OTIC1000 HR3Heraeus1000 (1000  C without Ti getter) Phonon peak of OTIC LG niobium recovered after heat treatment