Demagnetization of a Complete Superconducting Radiofrequency Cryomodule: Theory and Practice - INSPIRE

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Demagnetization of a Complete Superconducting Radiofrequency Cryomodule: Theory and Practice

Anthony C. Crawford
(
- Fermilab
)
,
Saravan K. Chandrasekaran
(
- Fermilab
)

Jun 17, 2016

6 pages

Published in:

IEEE Trans.Appl.Supercond. 27 (2016) 1, 3500406

Published: Dec 7, 2016

e-Print:

1606.05570 [physics.acc-ph]

DOI:

10.1109/TASC.2016.2635803

Report number:

FERMILAB-PUB-16-569-TD

View in:

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Abstract: (IEEE)

A significant advance in magnetic field management in a fully assembled superconducting radiofrequency cryomodule has been achieved and is reported here. Demagnetization of the entire cryomodule after assembly is a crucial step toward the goal of average magnetic flux density less than 0.5 μT at the location of the superconducting radio frequency cavities. An explanation of the physics of demagnetization and experimental results are presented.

Demagnetization
Cavity resonators
Remanence
Magnetic flux density
Magnetization
Magnetic shielding
superconducting devices
assembling
cryogenic electronics
demagnetisation

References(8)

Figures(0)

[1]

Nitrogen and Argon Doping of Niobium for Superconducting Radio Frequency Cavities: A Pathway to Highly Efficient Accelerating Structures

et al.

- Supercond.Sci.Technol. 26 (2013) 102001
•
e-Print:
- 1306.0288
•
DOI:
- 10.1088/0953-2048/26/10/102001

[2]

RF superconductivity for accelerators

- New York, USA: Wiley (1998) 523 p,
- Weinheim, Germany: Wiley (2008) 521 p

[3]

The Conceptual Design Report for the TeSLA Test Facility Linac: Version 1.0

[4]

In Situ Cryomodule Demagnetization

Anthony C. Crawford

e-Print:
- 1507.06582

[5]

A Study of Thermocurrent Induced Magnetic Fields in ILC Cavities

Anthony C. Crawford
(
- Fermilab
)

e-Print:
- 1403.7996

[6]

Magnetic Flux Dynamics in Horizontally Cooled Superconducting Cavities

M. Martinello
(
- Fermilab and
- IIT, Chicago
)
,
M. Checchin
(
- IIT, Chicago and
- Fermilab
)
,
A. Grassellino
(
- Fermilab
)
,
A.C. Crawford
(
- Fermilab
)
,
O. Melnychuk
(
- Fermilab
)

et al.

- J.Appl.Phys. 118 (2015) 044505
•
e-Print:
- 1502.07291
•
DOI:
- 10.1063/1.4927519

[7]

Efficient expulsion of magnetic flux in superconducting RF cavities for high $Q_0$ applications

et al.

- J.Appl.Phys. 119 (2016) 213903
•
e-Print:
- 1509.03957
•
DOI:
- 10.1063/1.4953087

[8]

Amuneal Corp. Promotional Literature:

- http://www.amuneal.com/wpcontent/uploads/2016/05/AmunealDataSheet2.pdf