Source holder collimator for encapsulating radioactive material and collimating the emanations from the material

Patent · Tue Jan 22 00:00:00 EDT 1974

OSTI ID:4310627

Laurer, G R

This invention provides a transportable device capable of detecting normal levels of a trace element, such as lead in a doughnutshaped blood sample by x-ray fluorescence with a minimum of sample preparation in a relatively short analyzing time. In one embodiment, the blood is molded into a doughnut-shaped sample around an annular array of low-energy radioactive material that is at the center of the doughnut-shaped sample but encapsulated in a collimator, the latter shielding a detector that is close to the sample and facing the same so that the detector receives secondary emissions from the sample while the collimator collimates ths primary emissions from the radioactive material to direct these emissions toward the sample around 360 deg and away from the detector. (Official Gazette)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-29-024393
• Assignee: to United States Atomic Energy Commission
• Patent Number(s): US 3787691
• OSTI ID: 4310627
• Resource Relation: Patent File Date: 1973 Jan 31; Other Information: G01r23/22. Orig. Receipt Date: 30-JUN-74
• Country of Publication: United States
• Language: English

Related Subjects

N47310* -Isotope & Radiation Source Technology-Radiation Sources-Design & Fabrication
N40100 -Chemistry-Analytical & Separations Chemistry
*BLOOD- X-RAY FLUORESCENCE ANALYSIS
*CAPSULES- DESIGN
*COLLIMATORS- DESIGN
*LEAD- X-RAY FLUORESCENCE ANALYSIS
*X-RAY SOURCES- COLLIMATORS
PLUTONIUM 238