Radiation Safety Protocols
Radiation Safety Protocols - Related Videos
08:17
Dynamic Lung Tumor Tracking for Stereotactic Ablative Body Radiation Therapy
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Cited by 9 •
2015
Stereotactic ablative body radiation therapy (SBRT) involves the precise delivery of high-dose radiation to cancer tumor targets. A novel SBRT platform offers a first-of-its-kind gimbaled radiation accelerator mounted within a pivoting O-ring gantry capable of dynamic image-guided tumor tracking. Here, we describe dynamic tumor tracking for lung targets.
02:59
Biological Effects of Radiation
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2020
All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they produce ions...
06:47
One-step Protocol for Evaluation of the Mode of Radiation-induced Clonogenic Cell Death by Fluorescence Microscopy
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Cited by 17 •
2017
Research on ionizing radiation (IR)-induced clonogenic cell death is important for understanding the effects of IR on malignant tumors and normal tissues. Here, we describe a one-step assay for assessing the major modes of IR-induced clonogenic cell death based on morphology of 4',6-diamidino-2-phenylindole dihydrochloride (DAPI)-stained nuclei visualized by fluorescence microscopy.
04:53
Electrical Safety
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2023
Robert M. Rioux & Suprita Jharimune, Pennsylvania State University, University Park, PA Among the many hazards present in the laboratory, electrical hazards are one of the most common we must be cognizant of since most of the laboratory equipment we use requires electricity for operation. Improper handling or operation of electrical devices might lead to electric shock with the potential risk of injury or even death. Electric sparks can lead to fire or explosion (since many flammable...
06:53
Quantification of γH2AX Foci in Response to Ionising Radiation
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Cited by 23 •
2010
Quantification of DNA double-strand streaks using γH2AX formation as a molecular marker has become an invaluable tool in radiation biology. Here we demonstrate the use of an immunofluorescence assay for quantification of γH2AX foci after exposure of cells to radiation.
FAQs
ALARA is implemented through several controls that work together rather than through a single precaution. Optimized beam settings limit unnecessary exposure, while shorter exposure time, greater distance, and appropriate shielding further reduce it. The goal is not simply to minimize radiation, but to reduce avoidable exposure while retaining the diagnostic information or therapeutic benefit required by the procedure.
Procedure-specific planning matters because radiation safety requirements differ across radiography, computed tomography, nuclear medicine, and radiation therapy. Planning connects selected beam settings and protective measures to the intended diagnostic or therapeutic purpose. It also helps determine whether controlled access, contamination prevention, or personal dosimetry must be included, supporting consistent protection without compromising the procedure’s clinical objective.
Quality assurance and personal dosimetry address different parts of safety. Equipment quality assurance supports reliable operation of the radiation-producing system, whereas personal dosimetry records an individual worker’s exposure. Controlled access limits who can enter relevant areas, and contamination prevention adds protection when radioactive materials are used. Together, these measures extend safety beyond beam adjustment alone.
A practical protocol begins with procedure-specific planning, then applies optimized beam settings and limits exposure time. Personnel use distance and appropriate shielding, with controlled access where needed. Personal dosimetry supports exposure monitoring, while contamination prevention is added for radioactive materials. Equipment quality assurance provides a continuing check that the system supports the planned procedure.
In radiography and computed tomography, the emphasis is on preserving diagnostic information while avoiding unnecessary exposure. Nuclear medicine additionally requires attention to radioactive materials and contamination prevention. Radiation therapy applies the same protective framework while preserving treatment benefit. Across settings, the controls are adapted to the procedure rather than applied as an identical checklist.
Their value is measured by balance: patients and workers receive less unnecessary ionizing radiation, while clinicians retain accurate diagnostic information and treatment teams preserve therapeutic effectiveness. Equipment quality assurance, optimized settings, and exposure controls support that balance. Consistent implementation therefore supports safer conditions surrounding care without treating radiation reduction as separate from clinical purpose.