IEC 61788-23-2021 pdf download

IEC 61788-23-2021 pdf download.Superconductivity – Part 23: Residual resistance ratio measurement – Residual resistance ratio of cavity-grade Nb superconductors. 4 Principle The 4-point DC electrical resistance technique shall be performed both at room temperature and at cryogenic temperature. The test may be done either as a function of temperature or...