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Related Concept Videos

X-ray Imaging01:24

X-ray Imaging

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German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with...
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The Electromagnetic Spectrum02:37

The Electromagnetic Spectrum

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The electromagnetic spectrum consists of all the types of electromagnetic radiation arranged according to their frequency and wavelength. Each of the various colors of visible light has specific frequencies and wavelengths associated with them, and you can see that visible light makes up only a small portion of the electromagnetic spectrum. Because the technologies developed to work in various parts of the electromagnetic spectrum are different, for reasons of convenience and historical...
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The Electromagnetic Spectrum01:24

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Electromagnetic waves are categorized according to their wavelengths and frequencies, giving the electromagnetic spectrum. These waves are classified as radio, infrared, ultraviolet, etc. Radio waves refer to electromagnetic radiation with wavelengths ranging from millimeters to kilometers. Radio waves are commonly used for audio communications (i.e., radios) and typically result from an alternating current in the wires of a broadcast antenna. They cover a broad wavelength range and are used...
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Types of Radioactivity

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The most common types of radioactivity are α decay, β decay, γ decay, neutron emission, and electron capture.
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Photoelectric Effect02:26

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When light of a particular wavelength strikes a metal surface, electrons are emitted. This is called the photoelectric effect. The minimum frequency of light that can cause such emission of electrons is called the threshold frequency, which is specific to the metal. Light with a frequency lower than the threshold frequency, even if it is of high intensity, cannot initiate the emission of electrons. However, when the frequency is higher than the threshold value, the number of electrons ejected...
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X-ray Crystallography02:18

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The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
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    X-ray radiation offers economic and technical benefits for medical device sterilization, including better dose uniformity and faster processing times compared to gamma radiation. Despite advantages, its adoption in contract sterilization remains limited, presenting opportunities for future growth.

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    Area of Science:

    • Medical Device Sterilization
    • Radiation Physics
    • Industrial Applications

    Background:

    • X-ray radiation is an emerging technology for sterilizing healthcare products.
    • Gamma radiation is the established method, but X-ray offers potential advantages.
    • The economics and benefits of X-ray sterilization have been debated for years.

    Purpose of the Study:

    • To highlight the benefits and potential of X-ray sterilization for medical devices.
    • To share practical knowledge and experience from a decade of X-ray sterilization at STERIS Däniken.
    • To identify future opportunities for X-ray sterilization in the medical device market.

    Main Methods:

    • X-ray sterilization process utilizing energic photons.
    • Comparison of X-ray and gamma radiation sterilization characteristics.
    • Analysis of operational data and experiences from STERIS Däniken site.

    Main Results:

    • X-ray radiation provides improved dose uniformity ratio, higher dose rates, and shorter process times.
    • Potential economic benefits include increased product processing per carrier.
    • X-ray sterilization offers improved dose range fit and wider material compatibility.

    Conclusions:

    • X-ray sterilization presents significant technical and economic advantages over traditional methods.
    • Wider adoption of X-ray sterilization is hindered, indicating market opportunities.
    • Further implementation of X-ray technology can enhance medical device sterilization processes.