The superconducting strand for the CMS solenoid conductor

Abstract

Abstract-The

Final Technical Report

“…The magnetic field was swept from 0 to 16 T, and then back to 0 T again. We used fixed temperatures of 4, 4.5, 5,6,7,8,9,10,11,12,14,16,18,20,25,30,35, 40 and 76 K. Measurements at 4, 4.5, and 5 K were done in liquid helium and those at 76 K were done in liquid nitrogen. Our re-entrant Dewar can be filled with a liquid cryogen, pressurized, and heated to change the temperature of the cryogen.…”

“…The history of interlaboratory comparisons of measurements on superconductors tells us that careful measurement methods are needed to obtain consistent results [1][2][3][4][5][6][7][8][9][10]. Inconsistent results can lead to many problems including: a mistrust of the results of others, unfair advantages in commerce, and erroneous feedback in the optimization of conductor performance.…”

Status of the Construction of the CMS Magnet

“…A full analysis of the degradation is presented in [8]. Organization for the procurement and manufacture of the conductor have been reported in [4] and [9] respectively; detailed reports on the components can be found in [10]- [12].…”

Status of the CMS magnet (MT17)

“…The general description of the conductor is reported in [5], and detailed reports on the components are given in [6] for the strands, [7] for the aluminum alloy reinforcement and in [8] for the EB welding operation.…”