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Title: Development and Study of Nb 3Sn Wires With High Specific Heat

Abstract

Recently, a new type of Nb 3Sn conductors were developed, which, by incorporating substances with high specific heat at 2-8 K in a proper design, have demonstrated significant improvement of minimum quench energy (MQE). This method to improving energy margins of conductors is promising to reduce Nb 3Sn magnet training. Here, we continue studying this type of conductors. Voltage-current (V-I) measurements from 15 T to 0 T and voltage-field (V-B) sweeps at various currents were conducted to investigate the influence of increased specific heat on the intrinsic stability of Nb 3Sn conductors. Normal zone propagation velocity (NZPV) was also studied. Lastly, a new scheme was put forward to introduce a new type of substances with not only high specific heat but also high thermal diffusivity to Nb 3Sn conductors, which is expected to work more effectively.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [2];  [1]
  1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  2. Hyper Tech Research, Inc., Columbus, OH (United States)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1490835
Report Number(s):
FERMILAB-PUB-18-619-TD
Journal ID: ISSN 1051-8223; oai:inspirehep.net:1712627
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
IEEE Transactions on Applied Superconductivity
Additional Journal Information:
Journal Volume: 29; Journal Issue: 5; Journal ID: ISSN 1051-8223
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; Nb $_{3}$ Sn conductor; minimum quench energy; normal zone propagation velocity; specific heat; stability

Citation Formats

Xu, Xingchen, Zlobin, Alexander V., Peng, Xuan, and Li, Pei. Development and Study of Nb3Sn Wires With High Specific Heat. United States: N. p., 2019. Web. doi:10.1109/TASC.2019.2892325.
Xu, Xingchen, Zlobin, Alexander V., Peng, Xuan, & Li, Pei. Development and Study of Nb3Sn Wires With High Specific Heat. United States. doi:10.1109/TASC.2019.2892325.
Xu, Xingchen, Zlobin, Alexander V., Peng, Xuan, and Li, Pei. Thu . "Development and Study of Nb3Sn Wires With High Specific Heat". United States. doi:10.1109/TASC.2019.2892325.
@article{osti_1490835,
title = {Development and Study of Nb3Sn Wires With High Specific Heat},
author = {Xu, Xingchen and Zlobin, Alexander V. and Peng, Xuan and Li, Pei},
abstractNote = {Recently, a new type of Nb3Sn conductors were developed, which, by incorporating substances with high specific heat at 2-8 K in a proper design, have demonstrated significant improvement of minimum quench energy (MQE). This method to improving energy margins of conductors is promising to reduce Nb3Sn magnet training. Here, we continue studying this type of conductors. Voltage-current (V-I) measurements from 15 T to 0 T and voltage-field (V-B) sweeps at various currents were conducted to investigate the influence of increased specific heat on the intrinsic stability of Nb3Sn conductors. Normal zone propagation velocity (NZPV) was also studied. Lastly, a new scheme was put forward to introduce a new type of substances with not only high specific heat but also high thermal diffusivity to Nb3Sn conductors, which is expected to work more effectively.},
doi = {10.1109/TASC.2019.2892325},
journal = {IEEE Transactions on Applied Superconductivity},
number = 5,
volume = 29,
place = {United States},
year = {2019},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on January 10, 2020
Publisher's Version of Record

Figures / Tables:

Fig. 1 Fig. 1: Comparison of V-I and V-B instability of the control wire and the high-C wire.

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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.