Human Health Campus: Medical Physics – Radiotherapy - IAEA
Treatment devices incorporating gamma-ray emitting sources for use in external beam radiotherapy are called radionuclide teletherapy units. These units use radioactive isotopes emit high-energy gamma rays. Two gamma-emitting radionuclides have been widely used for teletherapy: Cobalt-60 and Cesium-137.
The Role of Gamma Sterilization in Medical Devices
2023年12月6日 · Gamma sterilization is a highly effective method used in healthcare to eliminate harmful microorganisms from various materials, including medical devices, pharmaceuticals, and tissue grafts. Utilizing the high-energy gamma rays emitted from cobalt-60, this method is adept at penetrating deeply into materials to disrupt the DNA of microbes ...
Equipment – Human Health Campus: Medical Physics – …
Many devices are optimized for the most common nuclide in nuclear medicine, 99mTc, which emits gamma rays of 140 keV but can be used for energies from 50-250 keV. The handheld cameras are equipped with a standard laptop on which the control and visualization software is …
Technology | Radiation Oncology - UT Southwestern Medical Center
UT Southwestern's Department of Radiation Oncology uses some of the most powerful equipment available in the U.S, including stereotactic treatment technologies like CyberKnife®, Gamma Knife®, TrueBeam®, and VersaHD™.
Nuclear Imaging—The Gamma Camera - Radiology Key
2021年5月16日 · Nuclear medicine instruments designed to image x- and γ-ray-emitting radionuclides (gamma cameras) use collimators that permit photons following certain trajectories to reach the detector but absorb most of the rest. A heavy price is paid for using collimation—the vast majority (typically well over 99.95%) of emitted photons is wasted.
NASA | Best-Ever View of the High-Energy Gamma-ray Sky - 4K
Discrete gamma-ray sources include pulsar wind nebulae and supernova remnants within our galaxy, as well as distant galaxies called blazars powered by supermassive black holes. Labels show the...
Towards high-energy, high-resolution computed tomography via …
2018年10月26日 · Computed Tomography (CT) is a powerful method for non-destructive testing (NDT) and metrology awakes with expanding application fields. To improve the spatial resolution of high energy CT, a...
Forward-looking insights in laser-generated ultra-intense γ-ray …
2022年1月10日 · Upcoming high-brilliance and high-intensity γ beam facilities like the Variable-Energy Gamma Ray system (VEGA) at ELI-NP will produce tunable and narrow γ beams via Compton backscattering of...
Gamma-Ray imaging for nuclear security and safety: Towards 3-D gamma ...
2018年1月11日 · We have developed new means to register and fuse gamma-ray imaging with contextual data from portable or moving platforms. These developments enhance detection and mapping capabilities as well as provide unprecedented visualization of complex radiation fields, moving us one step closer to the realization of gamma-ray vision in three dimensions. 1.
Free-moving Quantitative Gamma-ray Imaging | Scientific …
2021年10月15日 · Here we characterize the detector response of a multi-element gamma-ray imaging system using experimentally benchmarked Monte Carlo simulations and perform 3D mapping on an absolute intensity...