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Linear Accelerator Mechanical Assembly

HHC MEDİKAL MÜHENDİSLİK, WITH OUR EXPERTISE FIELD OF YEARS OF EXPERTISE, PROVIDES ITS PROFESSIONAL EXPERIENCE AND EXPERIENCE, HHC MEDICAL ENGINEERING PROVIDES ITS PERFECT SERVICE. 

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Linear Accelerator Mechanical Assembly  

PROFESSIONAL INSTALLATION SERVICE WITH ITS EXPERT AND EXPERIENCED STAFF IN PROFESSIONAL EQUIPMENT BUSINESS WITHOUT ANY DAMAGE TO HHC MEDİKAL MÜHENDİSLİK LİNAC DEVICE  GIVES  

LINEAR ACCELERATOR MECHANICAL ASSEMBLY, aka INSTALLATION, IS ONE OF THE SUBJECTS THAT SHOULD BE DONE PROFESSIONALLY.

AS HHC MEDICAL ENGINEERING, THERE ARE MANY PROJECTS WORLDWIDE.

WHAT WE DO WHEN INSTALLATION

WE ARE PLANNING WITH PROFESSIONAL TEAM

PROFESSIONAL  WE USE TOOL

WE USE SPECIAL EQUIPMENT FOR THE ORIGINAL DEVICE

WE TAKE ALL PRECAUTIONS TO AVOID ANY DAMAGE TO THE INSTALLATION

WE MAKE THE INSTALLATION ACCORDING TO THE RIGHT TIME AND PROJECT

WE COMPLETE THE INSTALLATION WITHOUT DAMAGE IN ANY WAY TO THE AREA TO BE MECHANICALLY ASSEMBLED

WE PROVIDE 24/7 MECHANICAL INSTALLATION SERVICE  

WE PROVIDE SERVICE IN TURKEY AND WORLDWIDE

Linear Accelerator Mechanical Assembly

The linear accelerator, whose short designation is LINAC, is widely used in the oncology department of hospitals. It is a device used for cancer treatment and sends X-rays to the patient. It applies a high dose of radioactive radiation only to cancerous cells through images taken from medical imaging devices such as MRI. It does not harm the surrounding healthy tissues at all. LINAC is a frequently used treatment device in the external part of radiotherapy, which is divided into two as external and internal.

Under high voltage, electrons are stripped from the metal target and accelerate these electrons in the accelerator tube. As a result of the radiation given, reactions occur in the patient's body within seconds. Molecular cancer cells formed due to the reactions cause breaks in their DNA. In this way, tumor cells whose genetic code is broken cannot divide, reproduce and die. Thanks to the linear accelerator, patients are relieved of pain, pain, bleeding, etc. Without a knife, a treatment can be done without a knife.

What are the Linear Accelerator Types?

There are many types of linear accelerators belonging to different brands. They differ from each other in terms of room types suitable for use. In general, the linear accelerator features according to their types are described below:

  • Image Guided Radiotherapy System: Megavoltage portal imaging is used in many clinics and is a very simple and practical method. It allows the dose given during portal imaging to be deducted from the treatment dose.

  • Radiotherapy Simulation System: It provides the correct selection of the size and orientation of the radiotherapy beams. It is used to detect the physical extent of the tumor and its relationship to the surrounding tissues.

  • Intensity Modulated Arc Therapy System: It reduces damage by giving low doses of radiation to the tissues and organs around the tumor area. It applies a high dose of radiation to the tumor area. With these features, it is a highly advanced radiotherapy system.

  • Intensity Modulated Radiotherapy System: It is used to deliver precise radiation doses to the tumor or to certain areas within the tumor. It is a high-precision radiotherapy system that includes computer-controlled linear accelerators.

Linear accelerator with advanced image acquisition combines tumor motion; In this way, it provides an accurate treatment opportunity. It has a very fast treatment feature. It is one of the most reliable options in the treatment of lung, liver, head and neck, prostate cancers.

During the treatment with the linear accelerator device, unwanted neutrons are scattered around as a result of photodecay. These neutrons can pass from the hospital environment to other places and put human health at risk. However, it is very important to design the room where the linear accelerator is located in the most suitable conditions so that the treatment of the patient can be carried out under the most suitable conditions. Treatment with a linear accelerator poses a great risk if it cannot be ensured that these favorable conditions have been designed. Linear accelerator is of great importance in the treatment of radiotherapy. With its advanced technology, it enables the treatment of patients to progress faster and to obtain more successful results. Especially correct usage and space design are important elements for linear accelerator.

How Does a Linear Accelerator Work?

The working principle of the linear accelerator device can be explained step by step as follows:

  • Direct current is supplied to the modulator, which has a cylindrical structure with a cathode in the power supply center and an anode around it, including the mains network and hydrogen lamps.

  • The current is stored in the modulator, and with this current, a control system creates vibration at certain intervals.

  • High voltage impulses from the modulator are sent to the magnetron tubes and electron gun.

  • Electrons are sent to the accelerator copper tube, and electromagnetic waves from the magnetron come to the accelerator tube.

  • 3000 MHz vibrations occur in chambers with a diameter of 10 cm and are sent to the channel located in the middle of the chamber.

  • Electrons from the gun pass into the accelerator copper tube and are transmitted through the chamber with electromagnetic waves.

  • Electrons created in the electron gun enter the accelerator copper tube and move linearly along the channel from one chamber to the next by electromagnetic waves.

  • A particle going through a chamber goes to a region where there is no field at half the time of the AC voltage period.

  • The voltage polarization is reversed in the drift tube and the particle is accelerated on its way to the next cavity.

  • When the electrons leave the last chamber, their total velocity is equal to the sum of the velocities they get from each chamber.

The question of what a linear accelerator is and how it works can be briefly summarized in this way. How many keV and speed the electrons go is important for the linear accelerator. Usually this velocity has an energy of 50 keV. Linear accelerator devices, which consist of many parts, have a very sensitive structure since they are used in the field of radiotherapy.

Linear accelerators are activated by the working principles of x-ray tubes. However, there is a difference: In normal X-ray tubes, the speed of electrons can reach a maximum of 400 keV. The distance between anode and cathode in linear accelerators is greater. In order to obtain megavoltage X-rays, the velocities of the electrons ejected from the cathode are brought closer to the speed of light by the megavoltage electric potential difference and microwaves and hit the anode. High energy beams can be received from radioactive cobalt units with linear accelerator parts. It is also possible to create sharper and wider areas. The skin protection feature is also higher than the gamma rays emitted from cobalt telepathy devices. In this way, it has very advantageous features. However, it is a high cost and difficult to maintain device. It needs to be maintained with advanced technology and correct techniques. In this way, it is used more efficiently and for a long time.

What Parts Does a Linear Accelerator consist of?

The linear accelerator, which is a fairly large radiotherapy device, has different sections. The functions and duties of these departments are different from each other. Linear accelerator sections for the head consist of:

  • Tungsten target: It is the part where the electron beam is hit during X-ray production. All its electrons are stopped at the target and braking X-rays are generated.

  • Circular first collimator: Determines the diameter of the beam of light.

  • Equalizer: A cone-shaped filter that equalizes X-rays.

  • Diffuser: Also known as an electron vacuum cleaner. It makes the electron beam equal and creates a magnetic field. Tungsten comes into play when the target is not used and helps to distribute electrons homogeneously.

  • Ionization chamber: It provides the measurement of the given dose in the ion chambers and control of the intensity of the beam and whether it is symmetrical. There are two separate ionization chambers.

  • Secondary collimator: It provides the identification of treatment areas and consists of movable jaws.

The design of linear accelerators is such that they can rotate the radiation source on the horizontal axis. While the head rotates around the horizontal axis; the collimator rotates around the vertical axis passing through the center. The intersection of these two rotational axes is called the isocenter.

The question of what linear accelerator means is a question that is especially curious by radiotherapy patients. For this, the above information is a summary. In addition, it is necessary to mention many issues related to the room design of linear accelerators. Particular attention should be paid to the floor covering. Like many computer parts, linear accelerator parts are sensitive to static electricity. For this reason, the floor of the room where the equipment will be used should not exceed 2.0 kV at 20% relative humidity. Although the flooring material to be used is sensitive to static electricity, it may limit the capacity of the machines. When choosing the floor covering adjacent to the equipment, it is necessary to pay attention to the fact that they do not stain. Because while the reference points of the patients are being marked, paints may spill on the floor and cause stains. If carpet tiles are used on the floor, it becomes easier to replace the contaminated parts. In addition, the intervention hatches are more easily accessible. All materials should be placed in the ground pit first, and then the floor covering should be made. In this way, possible damages can be minimized.

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