Method for determining hydrogen mobility as a function of temperature in superconducting niobium cavities
Abstract
A method for determining the mobility of hydrogen as a function of temperature in superconducting niobium cavities comprising: 1) heating a cavity under test to remove free hydrogen; 2) introducing hydrogen-3 gas into the cavity; 3) cooling the cavity to allow absorption of hydrogen-3; and 4) measuring the amount of hydrogen-3 by: a) cooling the cavity to about 4.degree. K while flowing a known and regulated amount of inert carrier gas such as argon or helium into the cavity; b) allowing the cavity to warm at a stable rate from 4.degree. K to room temperature as it leaves the chamber; and c) directing the exit gas to an ion chamber radiation detector.
- Inventors:
-
- Virginia Beach, VA
- Issue Date:
- Research Org.:
- Jefferson Science Associates LLC (Newport News, VA)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 970538
- Patent Number(s):
- 7340937
- Application Number:
- 11/270,714
- Assignee:
- Jefferson Science Associates LLC (Newport News, VA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- DOE Contract Number:
- AC05-84ER 40150
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 08 HYDROGEN
Citation Formats
May, Robert. Method for determining hydrogen mobility as a function of temperature in superconducting niobium cavities. United States: N. p., 2008.
Web.
May, Robert. Method for determining hydrogen mobility as a function of temperature in superconducting niobium cavities. United States.
May, Robert. Tue .
"Method for determining hydrogen mobility as a function of temperature in superconducting niobium cavities". United States. https://www.osti.gov/servlets/purl/970538.
@article{osti_970538,
title = {Method for determining hydrogen mobility as a function of temperature in superconducting niobium cavities},
author = {May, Robert},
abstractNote = {A method for determining the mobility of hydrogen as a function of temperature in superconducting niobium cavities comprising: 1) heating a cavity under test to remove free hydrogen; 2) introducing hydrogen-3 gas into the cavity; 3) cooling the cavity to allow absorption of hydrogen-3; and 4) measuring the amount of hydrogen-3 by: a) cooling the cavity to about 4.degree. K while flowing a known and regulated amount of inert carrier gas such as argon or helium into the cavity; b) allowing the cavity to warm at a stable rate from 4.degree. K to room temperature as it leaves the chamber; and c) directing the exit gas to an ion chamber radiation detector.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {3}
}
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Works referenced in this record:
Investigations on hydrogen contamination of superconducting cavities
conference, January 1991
- Enderlein, G.; Korber, W.; Matheisen, A.
- Conference Record of the 1991 IEEE Particle Accelerator Conference
The “Q disease” in Superconducting Niobium RF Cavities
conference, January 2003
- Knobloch, J.
- HYDROGEN IN MATERIALS & VACUUM SYSTEMS: First International Workshop on Hydrogen in Materials and Vacuum Systems, AIP Conference Proceedings