The Resistance and Strength of Soft Solder Splices Between Conductors in MICE Coils

Abstract

The measured breaking stress of splices of various lengths is presented in this paper. Tin-lead solders and tin-silver solders were used for the splices that were tested. From the data given in this report, the authors recommend that the use of lead free solders be avoided for low temperature coils.

Tests of copper and HTS leads with a two-stage pulse tube drop-in cooler

“…Voltage measurement errors come into play at the level of 50 micro-volts. The expected heating in the five 75 mm long LTS splices is ~3 mW [15]. The LTS to HTS splice resistance on the HTS lead ends can account for some of the extra heating observed.…”