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What Is A Linear Accelerator?

What Is a Linear Accelerator?

2017-03-30 14:46:09


A linear accelerator is a device that uses high Radio-Frequency (RF) electromagnetic waves to accelerate charged particles to high energies in a linear path, inside a tube like structure called the accelerator waveguide. The resonating frequency of the medical linac is about 3 billion Hertz cycles per second. This is the most common device to treat cancer with external beam radiation. Accelerator is basically an apparatus for accelerating charged subatomic particles, used in radiotherapy, 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 and directed by a collimator to deliver super voltage X-Rays to the patient receiving radiotherapy.

The linear accelerator (Linac), uses microwave technology to accelerate electrons in a part of the linac called waveguide, then allows these electrons to collide with a heavy metal target. As a result of these collisions, high energy X-Rays (Photons) are produced from the target.

Linear Accelerator Technicians: Performs advanced technical support related to the maintenance and operation of medical linear accelerators. Jobs include preventive maintenance scheduling and responding to down linear accelerator parts and services, Coordinates vendor service and documentation, when necessary. Maintains inventory and orders parts for linear accelerators. Can assist in the design and modification of treatment accessories for physics and other departmental equipment as needed for patient treatment, quality assurance and research support. May require an ASEE or equivalent or Bachelors’ degree in Electrical or Mechanical Engineering or a directly related field. A senior position requires five (5) years of directly related experience maintaining and servicing medical linear accelerators. Specific experience is typically required on Varian Linear Accelerators. Authorized Varian training is highly desirable. Manufactures of these items include Siemens, Philips, Varian, and Elekta. Repair organizations include Acceletronics, Centura, and Altair.

When linear accelerator parts and services breaks down it is imperative that repair services are almost immediate. Downtime in a medical setting can literally be the difference between life and death so having the ability to have direct access to medical equipment repair services should be of the outmost priority. Another detail that is forgotten is the urgency of finding the parts for medical equipment. Without the proper parts to fix down machines technicians are at a stalemate with getting much need equipment like LINACS and CT scanners up and going again.

Having instantaneous access to OEM replacement parts for Linear Accelerators, Radiotherapy CT Simulators and Radiation Oncology equipment is pertinent.  With newer equipment it is often difficult to find access to replacement parts. Newer medical equipment can be difficult to find replacement parts for simply because of the newness of the piece to the market.

Radparts is the world’s largest independent distributor of OEM replacement parts for Linear Accelerators and Radiation Oncology equipment.  We provide high quality, user friendly, low cost parts support for linear accelerators and radiation equipment.  For more information on low cost parts for repairing Linac equipment find us at http://www.radparts.c


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