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Title: Quench anaylsis of MICE spectrometer superconducting solenoid

Abstract

MICE superconducting spectrometer solenoids fabrication and tests are in progress now. First tests of the Spectrometer Solenoid discovered some issues which could be related to the chosen passive quench protection system. Both solenoids do not have heaters and quench propagation relied on the 'quench back' effect, cold diodes, and shunt resistors. The solenoids have very large inductances and stored energy which is 100% dissipated in the cold mass during a quench. This makes their protection a challenging task. The paper presents the quench analysis of these solenoids based on 3D FEA solution of coupled transient electromagnetic and thermal problems. The simulations used the Vector Fields QUENCH code. It is shown that in some quench scenarios, the quench propagation is relatively slow and some areas can be overheated. They describe ways of improving the solenoids quench protection in order to reduce the risk of possible failure.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1038940
Report Number(s):
FERMILAB-CONF-11-434-TD
TRN: US1202055
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Conference: Presented at 22nd International Conference on Magnet Technology (MT-22), Marseille, France, 12-16 Sep 2011
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; BYPASSES; FABRICATION; HEATERS; MAGNETS; RESISTORS; SOLENOIDS; SPECTROMETERS; STORED ENERGY; SUPERCONDUCTING MAGNETS; TESTING; TRANSIENTS; VECTOR FIELDS; Accelerators

Citation Formats

Kashikhin, Vladimir, Bross, Alan, /Fermilab, Prestemon, Soren, and / /LBL, Berkeley. Quench anaylsis of MICE spectrometer superconducting solenoid. United States: N. p., 2011. Web.
Kashikhin, Vladimir, Bross, Alan, /Fermilab, Prestemon, Soren, & / /LBL, Berkeley. Quench anaylsis of MICE spectrometer superconducting solenoid. United States.
Kashikhin, Vladimir, Bross, Alan, /Fermilab, Prestemon, Soren, and / /LBL, Berkeley. Thu . "Quench anaylsis of MICE spectrometer superconducting solenoid". United States. https://www.osti.gov/servlets/purl/1038940.
@article{osti_1038940,
title = {Quench anaylsis of MICE spectrometer superconducting solenoid},
author = {Kashikhin, Vladimir and Bross, Alan and /Fermilab and Prestemon, Soren and / /LBL, Berkeley},
abstractNote = {MICE superconducting spectrometer solenoids fabrication and tests are in progress now. First tests of the Spectrometer Solenoid discovered some issues which could be related to the chosen passive quench protection system. Both solenoids do not have heaters and quench propagation relied on the 'quench back' effect, cold diodes, and shunt resistors. The solenoids have very large inductances and stored energy which is 100% dissipated in the cold mass during a quench. This makes their protection a challenging task. The paper presents the quench analysis of these solenoids based on 3D FEA solution of coupled transient electromagnetic and thermal problems. The simulations used the Vector Fields QUENCH code. It is shown that in some quench scenarios, the quench propagation is relatively slow and some areas can be overheated. They describe ways of improving the solenoids quench protection in order to reduce the risk of possible failure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Sep 01 00:00:00 EDT 2011},
month = {Thu Sep 01 00:00:00 EDT 2011}
}

Conference:
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