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- Number of terms: 14663
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Varian Medical Systems, Inc., headquartered globally in Palo Alto, California, is the world's leading manufacturer of medical devices and software for treating cancer and other medical conditions with radiotherapy, radiosurgery, proton therapy, and brachytherapy. The company supplies informatics ...
A radiation dose at some specified depth in tissue relative to the dose at a fixed reference point on the radiation beam axis. It is usually expressed as a percentage of the maximum dose along the radiation beam axis.
Industry:Medical devices
Name that is to be used to designate a given location or group within the information management system.
Industry:Medical devices
. The maximum dose prescribed to a treatment site during a single calendar day.
Industry:Medical devices
Consists of a water- and air-cooling system, with air, water, and oil coolants.
Industry:Medical devices
A coordinated set of software and hardware logic elements that direct and safeguard the step-by-step operation of a system function.
Industry:Medical devices
A vacuum tube that produces X-rays. The tube includes an emitter, either a filament or cathode, which emits electrons and an anode to collect the electrons, thus establishing a flow of electrical current, known as the beam, through the tube. A high-voltage power source (e. G. , 60 kV to 150 kV) is connected across cathode and anode to accelerate the electrons. When the electrons strike the anode (X-ray target) they generate X-rays through the bremsstrahlung process. The resulting X-ray spectrum depends on the anode material and the accelerating voltage. Device that generates the X-ray beam. See also kV source.
Industry:Medical devices
Penetrating electromagnetic radiation whose wavelengths are shorter than those of visible light. In the Clinac, x-rays are produced by bombarding a metal target with fast electrons in a high vacuum. The term is translated as "Röntgenstrahlen" when discuss.
Industry:Medical devices
An X-ray (or Röntgen ray) is a form of electromagnetic radiation with a wavelength in the range of 10 to 0. 01 nanometers, corresponding to frequencies in the range 30 PHz to 30 EHz. X-rays are primarily used for diagnostic radiography and crystallography. X-rays are a form of ionizing radiation and as such can be dangerous. In many languages it is called Röntgen radiation after one of the first investigators of the X-rays, Wilhelm Conrad Röntgen.
Industry:Medical devices
All of the hardware and software specifically designed for imaging activities including the MV detector, kV detector, and kV X-ray source; the three robotic arms (or positioning unit arms); the image acquisition and reconstruction subsystems; and the image calibration and image display applications. A complex component of the HET system that is used for image acquisition. Its computer hardware and firmware is referred to as the XI node.
Industry:Medical devices
Assembly placed in front of the kV image receptor consisting of alternating radiolucent and radiopaque lamella. It is designed to reduce the amount of X-ray scatter from the patient contributing to the signal measured by the kV image receptor.
Industry:Medical devices
