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A year after Röntgen's discovery of X-rays in 1895, the American engineer Wolfram Fuchs gave what was probably the first radiation protection advice, but many early users of X-rays were initially unaware of the hazards and protection was rudimentary or non-existent. [11] The dangers of radioactivity and radiation were not immediately recognized.
The Maximar-100 was a widely-adopted superficial radiation therapy unit. Precise naming and definitions of energy ranges may vary, and X-rays at the lower end of this range may also be known as Grenz rays. [2] They are useful in radiation therapy for the treatment of various benign or malignant skin problems, including skin cancer and severe ...
The Maximar-100 is a radiation therapy device that was made by General Electric to deliver superficial x-rays. Maximar 100 X-Ray Unit Superficial Therapy. The Maximar-100's x-ray source is the GE SRT-1, [1] an x-ray tube specifically designed for use in the Maximar-100. This is a fixed-anode, reflection-type x-ray tube, whose name is composed ...
Radiation therapy (RT) is in itself painless, but has iatrogenic side effect risks. Many low-dose palliative treatments (for example, radiation therapy to bony metastases) cause minimal or no side effects, although short-term pain flare-up can be experienced in the days following treatment due to oedema compressing nerves in the treated area ...
A 200 kV orthovoltage X-ray tube used for radiation therapy, 1938. Orthovoltage X-ray machines are similar to diagnostic (radiography) X-ray machines, except that higher voltages are used and the X-ray tube is longer, to prevent the high voltages from arcing across the tube. ICD10 =
External beam radiation therapy (EBRT) is a form of radiotherapy that utilizes a high-energy collimated beam of ionizing radiation, from a source outside the body, to target and kill cancer cells. The radiotherapy beam is composed of particles, which are focussed in a particular direction of travel using collimators. [ 1 ]
PDD increases with increasing radiation field size due to greater primary and scattered photons from the irradiated medium PDD increases with increasing SSD because inverse square variations over a fixed distance interval are smaller at large total distance than small total distance [ 1 ]
It has also been used with Stereotactic Body Radiation Therapy to assist with the initial set-up and detect intrafraction patient motion throughout treatment. [3] For stereotactic surgery , SGRT allows a frameless system to be used to monitor the surface of the patient within an open-face immobilization mask.