التفاصيل البيبلوغرافية
| العنوان: |
Field of first magnetic flux entry and pinning strength of superconductors for rf application measured with muon spin rotation |
| المؤلفون: |
T. Junginger, S. H. Abidi, R. D. Maffett, T. Buck, M. H. Dehn, S. Gheidi, R. Kiefl, P. Kolb, D. Storey, E. Thoeng, W. Wasserman, R. E. Laxdal |
| المصدر: |
Physical Review Accelerators and Beams, Vol 21, Iss 3, p 032002 (2018) |
| بيانات النشر: |
American Physical Society, 2018. |
| سنة النشر: |
2018 |
| المجموعة: |
LCC:Nuclear and particle physics. Atomic energy. Radioactivity |
| مصطلحات موضوعية: |
Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798 |
| الوصف: |
The performance of superconducting radiofrequency (SRF) cavities used for particle accelerators depends on two characteristic material parameters: field of first flux entry H_{entry} and pinning strength. The former sets the limit for the maximum achievable accelerating gradient, while the latter determines how efficiently flux can be expelled related to the maximum achievable quality factor. In this paper, a method based on muon spin rotation (μSR) is developed to probe these parameters on samples. It combines measurements from two different spectrometers, one being specifically built for these studies and samples of different geometries. It is found that annealing at 1400 °C virtually eliminates all pinning. Such an annealed substrate is ideally suited to measure H_{entry} of layered superconductors, which might enable accelerating gradients beyond bulk niobium technology. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
2469-9888 |
| Relation: |
https://doaj.org/toc/2469-9888 |
| DOI: |
10.1103/PhysRevAccelBeams.21.032002 |
| URL الوصول: |
https://doaj.org/article/f13a5e81ade94bd58ec5168f0dcd8d86 |
| رقم الانضمام: |
edsdoj.f13a5e81ade94bd58ec5168f0dcd8d86 |
| قاعدة البيانات: |
Directory of Open Access Journals |