Divalent-ion-doped single crystal alkali halide scintillators

Title: Divalent-ion-doped single crystal alkali halide scintillators

Abstract

A single crystal composition includes an alkali halide crystal doped with a divalent element in the amount of 0.5 to 5 weight percent, the doped crystal having an optical transmission of at least 45% at at least one wavelength. An alkali halide doped with at least one of europium and ytterbium is particularly useful as a scintillator.

Inventors:: Boatner, Lynn A.; Kolopus, James A.

Publication Date:: 2018-11-13

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1494122

Patent Number(s):: 10,125,312

Application Number:: 15/257,160

Assignee:: UT-BATTELLE, LLC (Oak Ridge, TN)

DOE Contract Number:: AC05-00OR22725

Resource Type:: Patent

Resource Relation:: Patent File Date: 2016 Sep 06

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Boatner, Lynn A., and Kolopus, James A. Divalent-ion-doped single crystal alkali halide scintillators.  United States: N. p., 2018. 
        Web.

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                    Boatner, Lynn A., & Kolopus, James A. Divalent-ion-doped single crystal alkali halide scintillators.  United States.

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                    Boatner, Lynn A., and Kolopus, James A. Tue .  
        "Divalent-ion-doped single crystal alkali halide scintillators".  United States.  https://www.osti.gov/servlets/purl/1494122.

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@article{osti_1494122,

  title        = {Divalent-ion-doped single crystal alkali halide scintillators},

  author       = {Boatner, Lynn A. and Kolopus, James A.},

  abstractNote = {A single crystal composition includes an alkali halide crystal doped with a divalent element in the amount of 0.5 to 5 weight percent, the doped crystal having an optical transmission of at least 45% at at least one wavelength. An alkali halide doped with at least one of europium and ytterbium is particularly useful as a scintillator.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/1494122},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2018},

  month        = {11}

}

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Works referenced in this record:

X-ray Studies on the Structures of Solid Solutions NaCl-CaCl ₂ III. Influence of Heat Treatments on the Diffuse Reflexions of X-rays due to {111} and {310} Plate-Zones
journal, February 1958

Suzuki, Kazuo
Journal of the Physical Society of Japan, Vol. 13, Issue 2
https://doi.org/10.1143/JPSJ.13.179

Some lithium iodide phosphors for slow neutron detection
journal, March 1955

Nicholson, K. P.; Snelling, G. F.
British Journal of Applied Physics, Vol. 6, Issue 3
https://doi.org/10.1088/0508-3443/6/3/311

On precipitation of metastable centres in solid solutions NaCl–CaCl2
journal, July 1954

Miyake, S.; Suzuki, K.
Acta Crystallographica, Vol. 7, Issue 6
https://doi.org/10.1107/S0365110X54001636

Scintillation materials with reduced afterglow and method of preparation
patent, February 2007

Brecher, Charles; Nagarkar, Vivek
US Patent Document 7,180,068
https://doi.org/http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F7180068

Activation of alkali halides with europium converted to the divalent state by an explosion
journal, June 1968

Lapshin, A. I.; Batsanov, S. S.
Journal of Applied Spectroscopy, Vol. 8, Issue 6
https://doi.org/10.1007/BF00618381

Optical absorption and luminescence investigations of the precipitated phases of ${Eu}^{2 +}$ in NaCl and KCl single crystals
journal, December 1980

López, F. J.; S., H. Murrieta; A., J. Hernández
Physical Review B, Vol. 22, Issue 12, p. 6428-6439
https://doi.org/10.1103/PhysRevB.22.6428

Fluorescent Properties of Alkaline Earth Aluminates of the Type MAl[sub 2]O[sub 4] Activated by Divalent Europium
journal, January 1968

Palilla, Frank C.; Levine, Albert K.; Tomkus, Maija R.
Journal of The Electrochemical Society, Vol. 115, Issue 6
https://doi.org/10.1149/1.2411379

X-ray Studies on the Structures of Solid Solutions NaCl-CaCl ₂ II. Structures of {111} and {310} Plate-Zones
journal, September 1955

Suzuki, Kazuo
Journal of the Physical Society of Japan, Vol. 10, Issue 9, p. 794-804
https://doi.org/10.1143/JPSJ.10.794

X-ray Studies on Precipitation of Metastable Centers in Mixed Crystals NaCl-CdCl ₂
journal, January 1961

Suzuki, Kazuo
Journal of the Physical Society of Japan, Vol. 16, Issue 1, p. 67-78
https://doi.org/10.1143/JPSJ.16.67

X-ray Studies on the Structures of Solid Solutions NaCl-CaCl ₂ I. Main Results and General Considerations
journal, September 1954

Miyake, Shizuo; Suzuki, Kazuo
Journal of the Physical Society of Japan, Vol. 9, Issue 5
https://doi.org/10.1143/JPSJ.9.702

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Similar Records

Title: Divalent-ion-doped single crystal alkali halide scintillators

Abstract

Citation Formats

X-ray Studies on the Structures of Solid Solutions NaCl-CaCl 2 III. Influence of Heat Treatments on the Diffuse Reflexions of X-rays due to {111} and {310} Plate-Zones journal, February 1958

Some lithium iodide phosphors for slow neutron detection journal, March 1955

On precipitation of metastable centres in solid solutions NaCl–CaCl2 journal, July 1954

Scintillation materials with reduced afterglow and method of preparation patent, February 2007

Activation of alkali halides with europium converted to the divalent state by an explosion journal, June 1968

Optical absorption and luminescence investigations of the precipitated phases of Eu 2 + in NaCl and KCl single crystals journal, December 1980

Fluorescent Properties of Alkaline Earth Aluminates of the Type MAl[sub 2]O[sub 4] Activated by Divalent Europium journal, January 1968

X-ray Studies on the Structures of Solid Solutions NaCl-CaCl 2 II. Structures of {111} and {310} Plate-Zones journal, September 1955

X-ray Studies on Precipitation of Metastable Centers in Mixed Crystals NaCl-CdCl 2 journal, January 1961

X-ray Studies on the Structures of Solid Solutions NaCl-CaCl 2 I. Main Results and General Considerations journal, September 1954

X-ray Studies on the Structures of Solid Solutions NaCl-CaCl ₂ III. Influence of Heat Treatments on the Diffuse Reflexions of X-rays due to {111} and {310} Plate-Zones
journal, February 1958

Some lithium iodide phosphors for slow neutron detection
journal, March 1955

On precipitation of metastable centres in solid solutions NaCl–CaCl2
journal, July 1954

Scintillation materials with reduced afterglow and method of preparation
patent, February 2007

Activation of alkali halides with europium converted to the divalent state by an explosion
journal, June 1968

Optical absorption and luminescence investigations of the precipitated phases of ${Eu}^{2 +}$ in NaCl and KCl single crystals
journal, December 1980

Fluorescent Properties of Alkaline Earth Aluminates of the Type MAl[sub 2]O[sub 4] Activated by Divalent Europium
journal, January 1968

X-ray Studies on the Structures of Solid Solutions NaCl-CaCl ₂ II. Structures of {111} and {310} Plate-Zones
journal, September 1955

X-ray Studies on Precipitation of Metastable Centers in Mixed Crystals NaCl-CdCl ₂
journal, January 1961

X-ray Studies on the Structures of Solid Solutions NaCl-CaCl ₂ I. Main Results and General Considerations
journal, September 1954