15–19 Nov 2021
Fukuoka Convention Center
Asia/Tokyo timezone

Cable R&D Program for 14T MRI

WED-PO2-604-01
17 Nov 2021, 10:30
2h
Fukuoka Convention Center

Fukuoka Convention Center

Speaker

Yongliang Zhang (Institute of Plasma Physics)

Description

Whole body ultra-magnetic field 14 T magnetic resonance imag-ing (MRI) magnet is now under design at Institute of Plasma Physics, Chinese Academy of Sciences, the main coil based on the preliminary designed of Nb3Sn Rutherford cable in Channel Conductor (RICC). Rutherford cable is a core components of the conductor. During the fabrication process of Rutherford cable, the strands were subject to server deformation, these deformation can result in significant reduction of the critical current and the Residual Resistivity Ration (RRR). A Rutherford cabling ma-chine has been purchased which consists of 20 spools, Turks head, caterpillar, and take-up facility. Rectangular cables without a stainless steel core were developed and three types of mixed ca-ble using 1.0 mm Nb3Sn strand and copper strand were fabricat-ed. Two measurements method were adopt to evaluate the critical current degradation after cabling. The first one is to measure the critical current of the strands extracted from the cable, the second method is to measure the performance of the cable. In this paper, the results of measurements of critical current are presented.

Primary authors

Yongliang Zhang (Institute of Plasma Physics) Dr Chao Dai (Institute of Plasma Physics) Prof. Yu Wu (Institute of Plasma Physics) Dr Hongjun Ma (Institute of Plasma Physics) Dr Changneng Zhang (Institute of Plasma Physics) Dr Aihua Xu ( Changzhou Vocational Institute of Mechatronic Technology) Yi Shi (Institute of Plasma Physics) Mr Kaihong Wu (Institute of Plasma Physics)

Presentation materials