linear accelerator

(redirected from Linear accelerators)
Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to Linear accelerators: electron linear accelerator

lin·e·ar ac·cel·er·a·tor (LINAC),

a device imparting high velocity and energy to atomic and subatomic particles; an important device for radiation therapy.

linear accelerator (LINAC)

Etymology: L, linea, line, accelerare, to quicken
an apparatus for accelerating charged subatomic particles, used in radiotherapy, physics research, and the production of radionuclides. A pulsed electron beam generated by an electron gun passes through a long, straight vacuum tube containing alternating hollow electrodes. The electrodes are arranged so that, when their high-frequency potentials are properly varied, the electrons passing through the tube receive successive increments of energy. The electrons are stopped abruptly by a heavy metal target at the end of the tube and directed by a collimator to deliver supervoltage x-rays to the patient receiving radiotherapy.
enlarge picture
Linear accelerator

linear accelerator

A device that accelerates radioactive particles and beams to body regions affected by malignancy, while minimising damage to normal tissue. Linear accelerators use electrodes and gaps arranged in a straight line, proportioned so when electrical potentials are varied with the proper amplitude and frequency, particles passing through the waveguide receive successive increments of energy, and are therefore accelerated; the device delivers therapeutic radiation in the range of 4 to 25 million volts, as either intense radiation or high-energy electron beams—most commonly, 60Co, delivering 2–10 Gy/min (200–1,000 rads/min) at the centre of an internal malignancy. 

External beam radiation therapy, stereotactic body radiotherapy, stereotactic radiosurgery.

Head and neck cancer, prostate cancer, Hodgkin lymphoma and other lymphoproliferative malignancies, seminomas and localised breast cancer, in combination with an excision of malignant lumps.

lin·e·ar ac·cel·er·a·tor

(lin'ē-ăr ak-sel'ĕr-ā-tŏr)
A device imparting high velocity and energy to atomic and subatomic particles; an important device for radiation therapy.

linear accelerator

A machine that uses high voltages to accelerate particles so that they can be used in RADIOTHERAPY.
References in periodicals archive ?
Also, seven of the eight linear accelerators were booked during the fourth quarter of Elekta's fiscal year 2015 to 2016.
The linear accelerator is used to treat all parts/organs of the body.
8220;The new facility will house two shielded bunkers which will give RadParts personnel the ability to live test and certify linear accelerator parts that have been repaired and refurbished," said Mike Summers, President of RadParts.
VARIAN Medical Systems and Siemens Healthcare have announced that clinicians at The Ohio State University (Ohio State), US, are now using Varian software to plan and manage radiotherapy treatments delivered on a Siemens medical linear accelerator.
39m towards the cost of replacing a linear accelerator at the north Cardiff cancer centre.
Table 7: Leading Players in Global Linear Accelerators Market (2005): Percentage Breakdown by Value Sales for Varian, Siemens, Elekta, and Others (includes corresponding Graph/Chart) II-14
Due to the company's large inventory of more than 60,000 linear accelerator parts and their partnership with major airlines and shipping companies, customers who purchase their OEM parts from RadParts enjoy lower linear accelerator pricing, as well as faster shipping times and the ability to place orders at any time.
Each linear accelerator is capable of carrying out 10,000 treatment sessions each year.
Linear accelerators deliver high-energy radiation to treat a variety of cancer types, as well as palliative treatment to provide symptom relief.
After a few years, he first joined the Acceletronics team as an engineer for their Varian linear accelerators (http://www.
This deal reportedly begins to address the shortage of linear accelerators (linacs) in the UK and the replacement of aging linacs.
Ben Slotman, head of radiation oncology at VU University Medical Centre in Amsterdam, the Netherlands, said the centre has treated more than 800 stage one lung tumor patients in the last eight years on six Varian linear accelerators, including two TrueBeam devices and a Novalis Tx machine.

Full browser ?