The gamma camera was positioned 1 m from the Ir-192 source delivered from the brachytherapy system and imaged the Ir-192 source while the source changed dwell positions in the FOV of the gamma camera. We could image the source with 1 s interval and observed the source changed its position ...
Brachytherapy is a type of internal therapy which use radionuclides as sources to deliver high doses of gamma (γ)-energy radiation near to the target sites (IAEA, 2017; Rahman, 2010) Starting from the utilization of radon dan radium, other sources were explored and used as the radioactive ...
The 60Co (1.25 MeV) radiation source has higher gamma energy than 192 Ir (0.38 MeV), which indicates that a higher standard of medical pro- tection is required for the use of 60Co. There are con- cerns that 60Co may have some damaging consequences distinct from those of 192Ir...
The 198Au 411-keV line, a de facto γ-ray standard, is reported at 3.0107788 pm (0.37 ppm) or 411 804.41 eV, which is 25 ppm higher in energy and forty times more accurate than previous values.DOI: 10.1103/PhysRevLett.40.171 年份: 1978 ...
nuclear energy level transitionsnuclei with mass number 190 to 219/ radioactive decay192Irelectron capture decaysweak gamma transitionsdirectional correlation measurements/ A2320L Nuclear gamma transitions and level energies A2340H Nuclear matrix elements and nuclear structure inferred from beta decay A2780...
The 198Au 411-keV line, a de facto gamma-ray standard, is reported at 3.0107788 pm (0.37 ppm) or 411 804.41 eV, which is 25 ppm higher in energy and forty times more accurate than previous values.DOI: 10.1103/PhysRevLett.40.171 被引量: 90 ...
gamma ray energies/ A2320L Nuclear gamma transitions and level energies A2780 Properties of nuclei with 190 les A les 219The energy of the 192Ir 296 keV gamma ray has been measured with the standard of 183Ta by using Ge(Li) detectors. The observed value is 295.949卤0.004 keV on the ...
Gamma cameraWe developed a small field-of-view (FOV) high energy gamma camera and measured the gamma photons from an Ir-192 source for imaging of the source. The developed gamma camera consists of a 10mm thick GAGG pixel scintillator block optically coupled to a position sensitive ...
An efficiency-extrapolation method using low-energy threshold-level variation was applied to determine the activity of 192Ir. In order to investigate the influences of the electron-capture decay of 192Ir on the activity measurement, the measurement was carried out using four different gamma gates. ...
Ir-192 can be analyzed via its gamma energy through analytical methods such as High Purity Germanium (HPGe) and its beta energy through Liquid Scintillation Counting (LSC). In this work, we present and compare HPGe and LSC rapid response methods for Ir-192 quantification. Both methods show ...