New advanced in alpha spectrometry by liquid scintillation methods

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Although the ability to count alpha particles by liquid scintillation methods has been long recognized, limited use has been made of the method because of problems of high background and alpha energy identification. In recent years some new developments in methods of introducing the alpha-emitting nuclide to the scintillator, in detector construction, and in electronics for processing the energy analog and time analog signals from the detector have allowed significant alleviation of the problems of alpha spectrometry by liquid scintillation. Energy resolutions of 200 to 300 keV full peak width at half maximum and background counts of < 0.01 counts/min ... continued below

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Pages: 10

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McDowell, W.J. & Case, G.N. January 1, 1979.

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Description

Although the ability to count alpha particles by liquid scintillation methods has been long recognized, limited use has been made of the method because of problems of high background and alpha energy identification. In recent years some new developments in methods of introducing the alpha-emitting nuclide to the scintillator, in detector construction, and in electronics for processing the energy analog and time analog signals from the detector have allowed significant alleviation of the problems of alpha spectrometry by liquid scintillation. Energy resolutions of 200 to 300 keV full peak width at half maximum and background counts of < 0.01 counts/min with rejection with rejection of > 99% of all beta plus gamma interference is now possible. Alpha liquid scintillation spectrometry is now suitable for a wide range of applications, from the accurate quantitative determination of relatively large amounts of known nuclides in laboratory-generated samples to the detection and identification of very small, subpicocurie amounts of alpha emitters in environmental-type samples. Suitable nuclide separation procedures, sample preparation methods, and instrument configurations are available for a variety of analyses.

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Pages: 10

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NTIS, PC A02/MF A01.

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  • ANS topical conference, Kiawah Island, SC, USA, 26 Nov 1979

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  • Report No.: CONF-791117-26
  • Grant Number: W-7405-ENG-26
  • Office of Scientific & Technical Information Report Number: 5466540
  • Archival Resource Key: ark:/67531/metadc1088059

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 1, 1979

Added to The UNT Digital Library

  • Feb. 10, 2018, 10:06 p.m.

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  • April 9, 2018, 11:28 a.m.

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McDowell, W.J. & Case, G.N. New advanced in alpha spectrometry by liquid scintillation methods, article, January 1, 1979; Tennessee. (digital.library.unt.edu/ark:/67531/metadc1088059/: accessed September 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.