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Title: Method of determining lanthanidies in a transition element host

Abstract

A phosphor composition contains a lanthanide activator element within a host matrix having a transition element as a major component. The host matrix is composed of certain rare earth phosphates or vanadates such as YPO.sub.4 with a portion of the rare earth replaced with one or more of the transition elements. On X-ray or other electromagnetic excitation, trace lanthanide impurities or additives within the phosphor are spectrometrically determined from their characteristic luminescence.

Inventors:
 [1];  [1]
  1. Ames, IA
Issue Date:
Research Org.:
Ames Lab., Ames, IA (United States); Iowa State Univ., Ames, IA (United States)
OSTI Identifier:
862460
Patent Number(s):
3936633
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
DOE Contract Number:  
W-7405-ENG-82
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; determining; lanthanidies; transition; element; host; phosphor; composition; contains; lanthanide; activator; matrix; major; component; composed; rare; earth; phosphates; vanadates; ypo; portion; replaced; elements; x-ray; electromagnetic; excitation; trace; impurities; additives; spectrometrically; determined; characteristic; luminescence; composition contains; rare earth; transition elements; transition element; major component; phosphor composition; host matrix; /378/252/

Citation Formats

De Kalb, Edward L, and Fassel, Velmer A. Method of determining lanthanidies in a transition element host. United States: N. p., 1976. Web.
De Kalb, Edward L, & Fassel, Velmer A. Method of determining lanthanidies in a transition element host. United States.
De Kalb, Edward L, and Fassel, Velmer A. Tue . "Method of determining lanthanidies in a transition element host". United States. https://www.osti.gov/servlets/purl/862460.
@article{osti_862460,
title = {Method of determining lanthanidies in a transition element host},
author = {De Kalb, Edward L and Fassel, Velmer A},
abstractNote = {A phosphor composition contains a lanthanide activator element within a host matrix having a transition element as a major component. The host matrix is composed of certain rare earth phosphates or vanadates such as YPO.sub.4 with a portion of the rare earth replaced with one or more of the transition elements. On X-ray or other electromagnetic excitation, trace lanthanide impurities or additives within the phosphor are spectrometrically determined from their characteristic luminescence.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {2}
}