Liquid scintillation systems and apparatus for measuring high-energy radiation emitted by samples in standard laboratory test tubes
AssigneeMeloy Laboratories, Inc.
InventorRonald A. Benvenutti
Life of this patent
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Abstract
Liquid scintillation detection system employs improved sample holders in which the cap of a glass vial is provided with a well for receiving a standard laboratory test tube containing a radioactive sample. The well is immersed in a liquid scintillator in the vial, the scintillator containing lead acetate solution to enhance its efficiency. A commercially available beta-counting liquid scintillation apparatus is modified to provide gamma-counting with the improved sample holders.
Claims17
A scintillation detection system for detecting radiation emitted by radioactive samples, said system comprising:
- a sample holder including a vial containing a scintillator, means forming a well extending substantially centrally into the scintillator, the bottom end of said well being closed and the top end of said well being open, and a test tube received in said well;
- a scintillation detection chamber;
- and
- transfer means for moving said sample holder into said scintillation detection chamber for detection of scintillations emanating from said scintillator and for removing said sample holder from said chamber after said detection.
A holder for radioactive samples comprising a vial having a cavity therein and having means forming a well extending into said cavity, the bottom end of said well being closed and the top of said well being open to the exterior of said vial for receiving a test tube, said cavity receiving a liquid scintillator surrounding said well.
A device for holding a sample for radiation detection comprising a transparent container having an open top in communication with a container cavity, a cap fitted to said open top and having means depending therefrom forming a well extending into said container cavity, the bottom of said well being closed and the top of said well being open, and a test tube received in said well and adapted to contain a radioactive sample.
A container cap for supporting a test tube in an open-top container having external threads around an open upper end, said container cap comprising:
- internally-threaded cover means adapted to fit over the open top of said container, and
- means forming a cylindrical well depending substantially centrally from said cover means, the bottom end of said well being closed and the top end of said well being open and dimensioned for receiving a test tube about 10 mm in diameter, whereby said test tube may be supported substantially centrally in said container when said container cap is fitted thereto.
Dependencies are inferred from the claim text.