GB/T 45506-2025

Active

Residual resistance ratio measurement—Residual resistance ratio of cavity-grade Nb superconductors

剩余电阻比测量 谐振腔级铌超导体剩余电阻比测量

Standard Type
GBT
ICS
17.220
CCS
L85
Status
Active
Issue Date
2025-04-25
Implementation
2025-11-01
Centralized Committee
中国科学院
Issuing Authority
国家市场监督管理总局、国家标准化管理委员会

Application Summary AI generated

This standard specifies the measurement method for the residual resistance ratio (RRR) of cavity-grade niobium superconductors, which is a key quality indicator for materials used in superconducting radio-frequency (SRF) cavities. It is applied in the manufacturing and quality control of particle accelerators, such as those in high-energy physics and synchrotron light sources, where high-purity niobium must meet strict RRR thresholds to minimize radio-frequency losses. The standard ensures consistent and comparable RRR measurements across suppliers and testing laboratories for cavity-grade niobium sheets, rods, and finished cavities.

Related Standards

Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.