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Calibrating the CyberKnife

January 31st, 2011

NPL's Radiation Dosimetry Group completed an advanced radiotherapy calibration at the Mount Vernon Cancer Centre in London - the first NHS hospital to install a CyberKnife radiotherapy treatment machine.

The CyberKnife is not actually a knife at all but a compact linear particle accelerator (linac) mounted on a robotic arm. The linac produces an X-ray beam, which the robotic arm can aim towards a patient's tumour from almost any direction.

NPL used alanine dosemeters and an ionisation chamber in order to compare the direct measurement of absorbed radiation dose with the planned dose, and provide a traceable calibration.

Provided by NPL

Citation: Calibrating the CyberKnife (2011, January 31) retrieved 18 February 2026 from https://sciencex.com/wire-news/57913250/calibrating-the-cyberknife.html

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