Forced flow He vapor cooled critical current testing facility for measurements of superconductors in a wide temperature and magnetic field range
Publication Date
2016-07-09Journal Title
Cryogenics
ISSN
0011-2275
Publisher
Elsevier
Volume
79
Pages
1-6
Language
English
Type
Article
This Version
VoR
Metadata
Show full item recordCitation
Baskys, A., Hopkins, S., Bader, J., & Glowacki, B. (2016). Forced flow He vapor cooled critical current testing facility for measurements of superconductors in a wide temperature and magnetic field range. Cryogenics, 79 1-6. https://doi.org/10.1016/j.cryogenics.2016.07.003
Abstract
As superconducting materials find their way into applications, there is increasing need to verify their performance at operating conditions. Testing of critical current with respect to temperature and magnetic field is of particular importance. However, testing facilities covering a range of temperatures and magnetic fields can be costly, especially when considering the cooling power required in the cryogenic system in the temperature range below 65 K (inaccessible for LN$_2$). Critical currents in excess of 500 A are common for commercial samples, making the testing of such samples difficult in setups cooled via a cryocooler, moreover it often does not represent the actual cooling conditions that the sample will experience in service. This work reports the design and operation of a low-cost critical current testing facility, capable of testing samples in a temperature range of 10–65 K, with magnetic field up to 1.6 T and measuring critical currents up to 900 A with variable cooling power.
Keywords
superconductors, critical current measurement, vapor cooled
Sponsorship
Engineering and Physical Sciences Research Council
Funder references
EPSRC (EP/P000738/1)
Embargo Lift Date
2100-01-01
Identifiers
External DOI: https://doi.org/10.1016/j.cryogenics.2016.07.003
This record's URL: https://www.repository.cam.ac.uk/handle/1810/257283
Rights
Attribution 4.0 International, Attribution 4.0 International, Attribution 4.0 International
Recommended or similar items
The following licence files are associated with this item: