Improved training in paraffin-wax impregnated Nb3Sn Rutherford cables demonstrated in BOX samples

التفاصيل البيبلوغرافية
العنوان: Improved training in paraffin-wax impregnated Nb3Sn Rutherford cables demonstrated in BOX samples
المؤلفون: Daly, Michael, Auchmann, Bernard, Brem, André, Hug, Christoph, Sidorov, Serguei, Otten, Simon, Dhallé, Marc, Guo, Zichuan, Kario, Anna, Kate, Herman ten
سنة النشر: 2022
المجموعة: Physics (Other)
مصطلحات موضوعية: Physics - Accelerator Physics
الوصف: Resin-impregnated high-field Nb3Sn type of accelerator magnets are known to require extensive training campaigns and even may exhibit performance-limiting defects after thermal or electromagnetic cycling. In order to efficiently explore technological solutions for this behaviour and assess a wide variety of impregnation material combinations and surface treatments, the BOnding eXperiment (BOX) sample was developed. BOX provides a short-sample test platform featuring magnet-relevant Lorentz forces and exhibits associated training. Here we report on the comparative behaviour of BOX samples comprising the same Nb3Sn Rutherford cable but impregnated either with common resins used in high-field magnets, or with less conventional paraffin wax. Remarkably, the two paraffin wax-impregnated BOX samples reached their critical current without training and are also resilient to thermal and mechanical cycling. These rather encouraging results strongly contrast to those obtained with resin impregnated samples, which show the characteristic extensive training and at best barely reach their critical current value.
Comment: 7 pages, 6 figures, To be published in IOP's Superconductor Science and Technology Journal (SuST)
نوع الوثيقة: Working Paper
DOI: 10.1088/1361-6668/ac6123
URL الوصول: http://arxiv.org/abs/2201.11039
رقم الأكسشن: edsarx.2201.11039
قاعدة البيانات: arXiv
الوصف
DOI:10.1088/1361-6668/ac6123