3.5-cell large grain niobium superconducting cavity for a dc superconducting rf photoinjector

被引：12

作者：

Quan, Shengwen ^{[1
]}

Zhu, Feng ^{[1
]}

Hao, Jiankui ^{[1
]}

Lu, Xiangyang ^{[1
]}

Zhang, Baocheng ^{[1
]}

Xu, Wencan ^{[1
]}

Zhao, Kui ^{[1
]}

机构：

[1] Peking Univ, Inst Heavy Ion Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China

来源：

PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS | 2010年 / 13卷 / 04期

关键词：

PEKING-UNIVERSITY;

D O I：

10.1103/PhysRevSTAB.13.042001

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We have developed a new compact high average current dc superconducting rf (DC-SRF) photoinjector. A 3.5-cell superconducting cavity with a mid-beta structure is the key component of the DC-SRF photoinjector. Herein, we present the new design, fabrication, and vertical test results of the 3.5-cell large grain niobium superconducting cavity. After preliminary surface preparation and room temperature rf measurements, the cavity was sent to Jefferson Lab for a vertical cold test. The gradient of the cavity reaches 23: 5 MV/m, and the Q(0) value is higher than 1: 2 x 10(10). The high-quality 3.5-cell cavity will guarantee the good performance of the DC-SRF photoinjector.

引用

页数：5

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