Influence of pre-heat-treatment condition on interstrand contact resistance in Nb 3Sn rutherford cables by calorimetric AC-loss measurement

E. W. Collings; M. D. Sumption; D. R. Dietderich; Y. Ilyin; A. Nijhuis

doi:10.1063/1.2192433

Influence of pre-heat-treatment condition on interstrand contact resistance in Nb ₃Sn rutherford cables by calorimetric AC-loss measurement

E. W. Collings^*, M. D. Sumption, D. R. Dietderich, Y. Ilyin, A. Nijhuis

^*Corresponding author for this work

Energy Materials Systems

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

4 Citations (Scopus)

Abstract

Helium-boil-off calorimetry was used to measure AC loss in uncored Nb ₃Sn Rutherford cables in the perpendicular and parallel orientations of the applied field. The five cables selected for study had widths of 8, 13, and 16 mm and strand counts of 20, 30, and 36, respectively. Under various surface conditions describable as "as-cabled", "solvent- rinsed", or " HCl-rinsed", they were reaction heat treated (RHT) then vacuum impregnated with resin in preparation for measurement. Calorimetric measurements of AC loss, and hence interstrand contact resistances (ICR) were made at 4.2 K in background fields of 0 T and 1 T, and sinusoidal fields of amplitude 400 mT and frequencies of 5 to about 90 mHz. The ICRs of the various uncored cables are compared. A comparison is also made to the ICR of a previously measured cored Nb ₃Sn cable.

Original language	English
Title of host publication	ADVANCES IN CRYOGENIC ENGINEERING
Subtitle of host publication	Transactions of the International Cryogenic Materials Conference, ICMC, Volume 52B
Pages	851-858
Number of pages	8
DOIs	https://doi.org/10.1063/1.2192433
Publication status	Published - 31 Mar 2006
Event	2005 Cryogenic Engineering Conference & International Cryogenic Materials Conference, CEC/ICMC 2005 - Keystone, United States Duration: 29 Aug 2005 → 2 Sep 2005

Publication series

Name	AIP Conference Proceedings
Volume	824 II
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	2005 Cryogenic Engineering Conference & International Cryogenic Materials Conference, CEC/ICMC 2005
Abbreviated title	CEC/ICMC
Country/Territory	United States
City	Keystone
Period	29/08/05 → 2/09/05

Keywords

AC loss
Contact resistance
Critical frequency
Nb Sn

Access to Document

10.1063/1.2192433

Cite this

Collings, E. W., Sumption, M. D., Dietderich, D. R., Ilyin, Y., & Nijhuis, A. (2006). Influence of pre-heat-treatment condition on interstrand contact resistance in Nb ₃Sn rutherford cables by calorimetric AC-loss measurement. In ADVANCES IN CRYOGENIC ENGINEERING: Transactions of the International Cryogenic Materials Conference, ICMC, Volume 52B (pp. 851-858). (AIP Conference Proceedings; Vol. 824 II). https://doi.org/10.1063/1.2192433

Collings, E. W. ; Sumption, M. D. ; Dietderich, D. R. et al. / Influence of pre-heat-treatment condition on interstrand contact resistance in Nb ₃Sn rutherford cables by calorimetric AC-loss measurement. ADVANCES IN CRYOGENIC ENGINEERING: Transactions of the International Cryogenic Materials Conference, ICMC, Volume 52B. 2006. pp. 851-858 (AIP Conference Proceedings).

@inproceedings{53710ee44bd74abf8e1b51169bb630d4,

title = "Influence of pre-heat-treatment condition on interstrand contact resistance in Nb 3Sn rutherford cables by calorimetric AC-loss measurement",

abstract = "Helium-boil-off calorimetry was used to measure AC loss in uncored Nb 3Sn Rutherford cables in the perpendicular and parallel orientations of the applied field. The five cables selected for study had widths of 8, 13, and 16 mm and strand counts of 20, 30, and 36, respectively. Under various surface conditions describable as {"}as-cabled{"}, {"}solvent- rinsed{"}, or {"} HCl-rinsed{"}, they were reaction heat treated (RHT) then vacuum impregnated with resin in preparation for measurement. Calorimetric measurements of AC loss, and hence interstrand contact resistances (ICR) were made at 4.2 K in background fields of 0 T and 1 T, and sinusoidal fields of amplitude 400 mT and frequencies of 5 to about 90 mHz. The ICRs of the various uncored cables are compared. A comparison is also made to the ICR of a previously measured cored Nb 3Sn cable.",

keywords = "AC loss, Contact resistance, Critical frequency, Nb Sn",

author = "Collings, {E. W.} and Sumption, {M. D.} and Dietderich, {D. R.} and Y. Ilyin and A. Nijhuis",

year = "2006",

month = mar,

day = "31",

doi = "10.1063/1.2192433",

language = "English",

isbn = "0735403163",

series = "AIP Conference Proceedings",

pages = "851--858",

booktitle = "ADVANCES IN CRYOGENIC ENGINEERING",

note = "2005 Cryogenic Engineering Conference & International Cryogenic Materials Conference, CEC/ICMC 2005, CEC/ICMC ; Conference date: 29-08-2005 Through 02-09-2005",

}

Collings, EW, Sumption, MD, Dietderich, DR, Ilyin, Y & Nijhuis, A 2006, Influence of pre-heat-treatment condition on interstrand contact resistance in Nb ₃Sn rutherford cables by calorimetric AC-loss measurement. in ADVANCES IN CRYOGENIC ENGINEERING: Transactions of the International Cryogenic Materials Conference, ICMC, Volume 52B. AIP Conference Proceedings, vol. 824 II, pp. 851-858, 2005 Cryogenic Engineering Conference & International Cryogenic Materials Conference, CEC/ICMC 2005, Keystone, Colorado, United States, 29/08/05. https://doi.org/10.1063/1.2192433

Influence of pre-heat-treatment condition on interstrand contact resistance in Nb ₃Sn rutherford cables by calorimetric AC-loss measurement. / Collings, E. W.; Sumption, M. D.; Dietderich, D. R. et al.

ADVANCES IN CRYOGENIC ENGINEERING: Transactions of the International Cryogenic Materials Conference, ICMC, Volume 52B. 2006. p. 851-858 (AIP Conference Proceedings; Vol. 824 II).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Influence of pre-heat-treatment condition on interstrand contact resistance in Nb 3Sn rutherford cables by calorimetric AC-loss measurement

AU - Collings, E. W.

AU - Sumption, M. D.

AU - Dietderich, D. R.

AU - Ilyin, Y.

AU - Nijhuis, A.

PY - 2006/3/31

Y1 - 2006/3/31

N2 - Helium-boil-off calorimetry was used to measure AC loss in uncored Nb 3Sn Rutherford cables in the perpendicular and parallel orientations of the applied field. The five cables selected for study had widths of 8, 13, and 16 mm and strand counts of 20, 30, and 36, respectively. Under various surface conditions describable as "as-cabled", "solvent- rinsed", or " HCl-rinsed", they were reaction heat treated (RHT) then vacuum impregnated with resin in preparation for measurement. Calorimetric measurements of AC loss, and hence interstrand contact resistances (ICR) were made at 4.2 K in background fields of 0 T and 1 T, and sinusoidal fields of amplitude 400 mT and frequencies of 5 to about 90 mHz. The ICRs of the various uncored cables are compared. A comparison is also made to the ICR of a previously measured cored Nb 3Sn cable.

AB - Helium-boil-off calorimetry was used to measure AC loss in uncored Nb 3Sn Rutherford cables in the perpendicular and parallel orientations of the applied field. The five cables selected for study had widths of 8, 13, and 16 mm and strand counts of 20, 30, and 36, respectively. Under various surface conditions describable as "as-cabled", "solvent- rinsed", or " HCl-rinsed", they were reaction heat treated (RHT) then vacuum impregnated with resin in preparation for measurement. Calorimetric measurements of AC loss, and hence interstrand contact resistances (ICR) were made at 4.2 K in background fields of 0 T and 1 T, and sinusoidal fields of amplitude 400 mT and frequencies of 5 to about 90 mHz. The ICRs of the various uncored cables are compared. A comparison is also made to the ICR of a previously measured cored Nb 3Sn cable.

KW - AC loss

KW - Contact resistance

KW - Critical frequency

KW - Nb Sn

UR - http://www.scopus.com/inward/record.url?scp=33845388551&partnerID=8YFLogxK

U2 - 10.1063/1.2192433

DO - 10.1063/1.2192433

M3 - Conference contribution

AN - SCOPUS:33845388551

SN - 0735403163

SN - 9780735403161

T3 - AIP Conference Proceedings

SP - 851

EP - 858

BT - ADVANCES IN CRYOGENIC ENGINEERING

T2 - 2005 Cryogenic Engineering Conference & International Cryogenic Materials Conference, CEC/ICMC 2005

Y2 - 29 August 2005 through 2 September 2005

ER -

Collings EW, Sumption MD, Dietderich DR, Ilyin Y, Nijhuis A. Influence of pre-heat-treatment condition on interstrand contact resistance in Nb ₃Sn rutherford cables by calorimetric AC-loss measurement. In ADVANCES IN CRYOGENIC ENGINEERING: Transactions of the International Cryogenic Materials Conference, ICMC, Volume 52B. 2006. p. 851-858. (AIP Conference Proceedings). doi: 10.1063/1.2192433