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Title: Radiofrequency attenuator and method

Abstract

Radiofrequency attenuator and method. The attenuator includes a pair of transparent windows. A chamber between the windows is filled with molten salt. Preferred molten salts include quarternary ammonium cations and fluorine-containing anions such as tetrafluoroborate (BF.sub.4.sup.-), hexafluorophosphate (PF.sub.6.sup.-), hexafluoroarsenate (AsF.sub.6.sup.-), trifluoromethylsulfonate (CF.sub.3SO.sub.3.sup.-), bis(trifluoromethylsulfonyl)imide ((CF.sub.3SO.sub.2).sub.2N.sup.-), bis(perfluoroethylsulfonyl)imide ((CF.sub.3CF.sub.2SO.sub.2).sub.2N.sup.-) and tris(trifluoromethylsulfonyl)methide ((CF.sub.3SO.sub.2).sub.3C.sup.-). Radicals or radical cations may be added to or electrochemically generated in the molten salt to enhance the RF attenuation.

Inventors:
 [1];  [1];  [1];  [2];  [3]
  1. Los Alamos, NM
  2. Tucson, AZ
  3. Palmerston North, NZ
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
Sponsoring Org.:
USDOE
OSTI Identifier:
959132
Patent Number(s):
7,479,843
Application Number:
10/990,881
Assignee:
Los Alamos National Security, LLC (Los Alamos, NM) ALO
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Warner, Benjamin P, McCleskey, T Mark, Burrell, Anthony K, Agrawal, Anoop, and Hall, Simon B. Radiofrequency attenuator and method. United States: N. p., 2009. Web.
Warner, Benjamin P, McCleskey, T Mark, Burrell, Anthony K, Agrawal, Anoop, & Hall, Simon B. Radiofrequency attenuator and method. United States.
Warner, Benjamin P, McCleskey, T Mark, Burrell, Anthony K, Agrawal, Anoop, and Hall, Simon B. Tue . "Radiofrequency attenuator and method". United States. https://www.osti.gov/servlets/purl/959132.
@article{osti_959132,
title = {Radiofrequency attenuator and method},
author = {Warner, Benjamin P and McCleskey, T Mark and Burrell, Anthony K and Agrawal, Anoop and Hall, Simon B},
abstractNote = {Radiofrequency attenuator and method. The attenuator includes a pair of transparent windows. A chamber between the windows is filled with molten salt. Preferred molten salts include quarternary ammonium cations and fluorine-containing anions such as tetrafluoroborate (BF.sub.4.sup.-), hexafluorophosphate (PF.sub.6.sup.-), hexafluoroarsenate (AsF.sub.6.sup.-), trifluoromethylsulfonate (CF.sub.3SO.sub.3.sup.-), bis(trifluoromethylsulfonyl)imide ((CF.sub.3SO.sub.2).sub.2N.sup.-), bis(perfluoroethylsulfonyl)imide ((CF.sub.3CF.sub.2SO.sub.2).sub.2N.sup.-) and tris(trifluoromethylsulfonyl)methide ((CF.sub.3SO.sub.2).sub.3C.sup.-). Radicals or radical cations may be added to or electrochemically generated in the molten salt to enhance the RF attenuation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {1}
}

Patent:

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