Mixed gamma emitting gas standard and method

Details Mixed gamma emitting gas standard and method Mixed gamma emitting gas standard and method

1981-11-18

1984-06-26

Church, Craig E.

Radiant energy

Calibration or standardization methods

7386486, 250435, G01D 1800, G12B 1300

Patent

active

044568231

ABSTRACT:
A mixed gamma emitting gas standard in the form of a multiple isotope standard in a glass sphere which can be used to calibrate a gamma spectrometer system for gas counting in a wide energy range and without the need for any additional standards. Total and partial transfers of gas standard material to counting containers without leakage is enabled. The mixed gas standard is contained in a spherical vial equipped with ground glass stopcocks and a septum port in one tubular arm separated from the spherical vial by one stopcock. A gas transfer syringe, venting needle, assorted septa, and a length of hose are included with the spherical vial assembly to enable accurate volumetric transfers to several different gas counting geometries.

REFERENCES:
patent: 2341551 (1944-02-01), Hoover
patent: 2892086 (1959-06-01), Carter, Jr.
patent: 3064130 (1962-11-01), Ianni et al.
patent: 3195355 (1965-07-01), Boyer et al.
patent: 3639757 (1972-02-01), Caroll et al.
patent: 4286155 (1981-08-01), Utting

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