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Related Concept Videos

Radiation: Applications01:17

Radiation: Applications

2.0K
The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
The average...
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Absorption of Radiation01:05

Absorption of Radiation

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The rate of heat transfer by emitted radiation is described by the Stefan-Boltzmann law of radiation:
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Biological Effects of Radiation02:59

Biological Effects of Radiation

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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...
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Nuclear Power02:36

Nuclear Power

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Controlled nuclear fission reactions are used to generate electricity. Any nuclear reactor that produces power via the fission of uranium or plutonium by bombardment with neutrons has six components: nuclear fuel consisting of fissionable material, a nuclear moderator, a neutron source, control rods, reactor coolant, and a shield and containment system.
Nuclear Fuels
Nuclear fuel consists of a fissile isotope, such as uranium-235, which must be present in sufficient quantity to provide a...
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Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
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Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

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Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and...
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Related Experiment Video

Updated: Mar 21, 2026

Dosimetry for Cell Irradiation using Orthovoltage 40-300 kV X-Ray Facilities
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Radiation Safety Compliance.

Jana Koth, Marcia Hess Smith

    Radiologic Technology
    |May 6, 2016
    PubMed
    Summary

    This article outlines radiation safety programs, detailing team roles, regulatory agencies, and safe practices like dose minimization and proper badge use. It emphasizes the radiologic technologist

    Area of Science:

    • Medical Physics
    • Radiological Health
    • Occupational Safety

    Background:

    • Radiation safety programs are crucial for protecting patients and staff.
    • Effective radiation safety requires understanding team roles and regulatory frameworks.

    Purpose of the Study:

    • To provide a comprehensive overview of radiation safety programs.
    • To detail the responsibilities of radiation safety teams, particularly the radiation safety officer.
    • To highlight key principles and practices for safe radiation use.

    Main Methods:

    • Review of radiation safety program components.
    • Description of regulatory agency roles.
    • Discussion of best practices for dose management and material handling.

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    Dosimetry for Cell Irradiation using Orthovoltage 40-300 kV X-Ray Facilities
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    Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition
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    Main Results:

    • Identified key members and duties within radiation safety teams.
    • Outlined the functions of regulatory bodies.
    • Stressed the importance of minimizing patient dose and correct dosimetry badge usage.
    • Reviewed fundamental safety principles: time, distance, and shielding.

    Conclusions:

    • Effective radiation safety relies on well-defined team roles, adherence to regulations, and diligent application of safety principles.
    • Radiologic technologists play a vital role in ensuring safe radiation practices.