Cryogenic, high-resolution x-ray detector with high count rate capability

Frank, Matthias; Mears, Carl A; Labov, Simon E; Hiller, Larry J; Barfknecht, Andrew T

Title: Cryogenic, high-resolution x-ray detector with high count rate capability

Abstract

A cryogenic, high-resolution X-ray detector with high count rate capability has been invented. The new X-ray detector is based on superconducting tunnel junctions (STJs), and operates without thermal stabilization at or below 500 mK. The X-ray detector exhibits good resolution (.about.5-20 eV FWHM) for soft X-rays in the keV region, and is capable of counting at count rates of more than 20,000 counts per second (cps). Simple, FET-based charge amplifiers, current amplifiers, or conventional spectroscopy shaping amplifiers can provide the electronic readout of this X-ray detector.

Inventors:

Frank, Matthias ^[1]; Mears, Carl A ^[2]; Labov, Simon E ^[3]; Hiller, Larry J ^[4]; Barfknecht, Andrew T ^[5]

Oakland, CA
Windsor, CA
Berkeley, CA
Livermore, CA
Menlo Park, CA

Issue Date:: 2003-01-01

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

OSTI Identifier:: 875091

Patent Number(s):: 6528814

Application Number:: 09/395590

Assignee:: The Regents of the University of California (Oakland, CA)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

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G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
G01T1/1606 - {with other specified detectors not provided for in the other sub-groups of G01T1/16

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
H01L39/10 - characterised by the means for switching {between superconductive and normal states}

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DOE Contract Number:: W-7405-ENG-48

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: cryogenic; high-resolution; x-ray; detector; count; rate; capability; invented; based; superconducting; tunnel; junctions; stjs; operates; thermal; stabilization; below; 500; mk; exhibits; resolution; about5-20; fwhm; soft; x-rays; kev; region; capable; counting; rates; 20000; counts; cps; simple; fet-based; charge; amplifiers; current; conventional; spectroscopy; shaping; provide; electronic; readout; count rate; rate capability; ray detector; /257/

Citation Formats


                    Frank, Matthias, Mears, Carl A, Labov, Simon E, Hiller, Larry J, and Barfknecht, Andrew T. Cryogenic, high-resolution x-ray detector with high count rate capability.  United States: N. p., 2003. 
        Web.

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                    Frank, Matthias, Mears, Carl A, Labov, Simon E, Hiller, Larry J, & Barfknecht, Andrew T. Cryogenic, high-resolution x-ray detector with high count rate capability.  United States.

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                    Frank, Matthias, Mears, Carl A, Labov, Simon E, Hiller, Larry J, and Barfknecht, Andrew T. Wed .  
        "Cryogenic, high-resolution x-ray detector with high count rate capability".  United States.  https://www.osti.gov/servlets/purl/875091.

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@article{osti_875091,

  title        = {Cryogenic, high-resolution x-ray detector with high count rate capability},

  author       = {Frank, Matthias and Mears, Carl A and Labov, Simon E and Hiller, Larry J and Barfknecht, Andrew T},

  abstractNote = {A cryogenic, high-resolution X-ray detector with high count rate capability has been invented. The new X-ray detector is based on superconducting tunnel junctions (STJs), and operates without thermal stabilization at or below 500 mK. The X-ray detector exhibits good resolution (.about.5-20 eV FWHM) for soft X-rays in the keV region, and is capable of counting at count rates of more than 20,000 counts per second (cps). Simple, FET-based charge amplifiers, current amplifiers, or conventional spectroscopy shaping amplifiers can provide the electronic readout of this X-ray detector.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2003},

  month        = {1}

}

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Works referenced in this record:

A simple and robust niobium Josephson junction integrated circuit process
journal, March 1991

Barfknecht, A. T.; Ruby, R. C.; Ko, H. L.
IEEE Transactions on Magnetics, Vol. 27, Issue 2
https://doi.org/10.1109/20.133873

Improved 1 V and 10 V Josephson voltage standard arrays
journal, June 1997

Kohlmann, J.; Muller, F.; Gutmann, P.
IEEE Transactions on Appiled Superconductivity, Vol. 7, Issue 2
https://doi.org/10.1109/77.622112

Superconducting tunnel-junction x-ray detectors with niobium absorbers and aluminum quasi-particle traps
conference, October 1992

Labov, Simon E.; Mears, Carl A.; Morris, George W.
San Diego '92, SPIE Proceedings
https://doi.org/10.1117/12.130694

Josephson junction integrated circuit process with planarized PECVD SiO/sub 2/ dielectric
journal, March 1993

Barfknecht, A. T.; Ruby, R. C.; Ko, H. L.
IEEE Transactions on Applied Superconductivity, Vol. 3, Issue 1
https://doi.org/10.1109/77.233940

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Title: Cryogenic, high-resolution x-ray detector with high count rate capability

Abstract

Citation Formats

A simple and robust niobium Josephson junction integrated circuit process journal, March 1991

Improved 1 V and 10 V Josephson voltage standard arrays journal, June 1997

Superconducting tunnel-junction x-ray detectors with niobium absorbers and aluminum quasi-particle traps conference, October 1992

Josephson junction integrated circuit process with planarized PECVD SiO/sub 2/ dielectric journal, March 1993

A simple and robust niobium Josephson junction integrated circuit process
journal, March 1991

Improved 1 V and 10 V Josephson voltage standard arrays
journal, June 1997

Superconducting tunnel-junction x-ray detectors with niobium absorbers and aluminum quasi-particle traps
conference, October 1992

Josephson junction integrated circuit process with planarized PECVD SiO/sub 2/ dielectric
journal, March 1993