A method for lateral localization of a compact gamma source in radionuclide diagnostics

International Conference on Particle Physics and Astrophysics

物理学;天文学

Berdnikova, A.K.^1 ; Bolozdynya, A.I.^1 ; Kantserov, V.A.^1 ; Kondakov, A.K.^1,2 ; Pashkovich, I.^1 ; Znamenskiy, I.A.^1,2

National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe highway 31, Moscow

115409, Russia^1

Pirogov Russian National Research Medical University (RNRMU), Ostrovitianov str.1, Moscow

117997, Russia^2

关键词: Characteristic x rays;    Gamma emission;    Gamma lines;    Gamma source;    Medical radioisotopes;    Single channels;    Soft tissue;    Technetium-99m;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/798/1/012216/pdf
DOI  :  10.1088/1742-6596/798/1/012216

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

A method for lateral localization of a gamma source in a medium with a miniature single channel scintillation detector is developed and experimentally tested. Method is based on simultaneous registration of two (or more) gamma lines emitted from an area of increased uptake of a radiopharmaceutical in the patients body. The proposed method is tested with the most widely used medical radioisotope technetium-99m which has a 140 keV gamma emission line and a 18 keV characteristic x-ray line. The results of experimental studies show that the lateral coordinate of a point-like99mTc source can be determined with an accuracy of ± 4 mm at the depth of soft tissues equivalent phantom up to 30 mm.