학술논문

Implications of NbTi Short-Sample Test Results and Analysis for the ITER Poloidal Field Conductor Insert (PFCI)
Document Type
Periodical
Source
IEEE Transactions on Applied Superconductivity IEEE Trans. Appl. Supercond. Applied Superconductivity, IEEE Transactions on. 16(2):886-889 Jun, 2006
Subject
Fields, Waves and Electromagnetics
Engineered Materials, Dielectrics and Plasmas
Niobium compounds
Titanium compounds
Testing
Conductors
Performance analysis
Calorimetry
Superconducting coils
Radio frequency
Current measurement
Loss measurement
Fusion reactors
ITER
modeling
superconducting coils
Language
ISSN
1051-8223
1558-2515
2378-7074
Abstract
As the test of the PFCI is foreseen in 2006 at JAERI Naka, Japan, it is essential to consider in detail the lessons learned from the short NbTi sample tests, as well as the issues left open after them, in order to develop a suitable test program of the PFCI aimed at bridging the extrapolation gap between measured strand and future PF coil performance. Here we consider in particular the following issues: 1) the actual possibility to quench the PFCI conductor in the$ T_ CS$tests before quenching the intermediate joint, 2) the question of the so-called sudden or premature quench, based on SULTAN sample results, applying a recently developed multi-solid and multi-channel extension of the Mithrandir code to a short sample analysis; 3) the feasibility of the AC losses calorimetry in the PFCI.