Electron cyclotron and electron linear accelerator for large vehicle container X-ray imaging system

 

The large truck container security system can be divided into two types from the aspect of radiation, one is the use of radioactive sources (such as cobalt-60) generated gamma ray imaging, the other is the use of accelerator generated X-ray imaging. Since the radioactive source is releasing gamma rays all the time, the direction is spreading in all directions, with the attenuation of activity, the radioactive source needs to be replaced regularly, and the safety protection is also relatively harsh, greatly increasing the difficulty of operation and maintenance, based on the above points, most of the truck container security system chooses the accelerator ray source.

 

The X-ray source of large truck container security system is mainly used: electron cyclotron and electron linear accelerator

 

Electronic cyclotron for large automobile container fluoroscopic security system

The electron cyclotron is a low-energy accelerator that rotates electrons with a constant magnetic field and accelerates electrons with a high-frequency electric field of fixed frequency generated by a resonator. Under a constant magnetic field, the time it takes an electron to complete a circle becomes faster as the energy increases. If the electron is rotated once and the accelerating electric field changes exactly for an integer period, the electron can be gradually accelerated, which can be achieved until 20MeV, and the beam intensity is about 10mA. The magnetic field used in this accelerator is low, the magnet is light, and it is technically easy to achieve, and it is a good performance electron accelerator.

 

Electron cyclotron ray source, used for cargo vehicle security, container inspection is a better alternative to gamma source imaging security. The electron cyclotron is a high-energy pulsed X-ray source suitable for container security inspection system (CIS), which can effectively identify all kinds of dangerous goods such as organic and inorganic materials, effectively improve the technical level of radiation imaging detection, and improve the detection accuracy of specific substances (dangerous and contraband products such as *** and ***). To provide more powerful high-tech security inspection tools for customs, civil aviation and other industries.

 

Electronic linear accelerator for large automobile container fluoroscopic security system

 
 

The working principle of electron linear accelerator for large automobile container see-through security channel system

The electron linear accelerator is a device that uses microwave electric field to accelerate electrons along a linear track to a higher energy, and bombards heavy metal targets with high-energy electron beams to produce high-energy X-rays for detection.

Application advantage ►

♦ The accelerator X-ray energy is high, the dose rate is large, the detection size is large, the image quality is good (small noise, delicate);

♦ Small focus, high spatial resolution, large focal length, high photographic definition; Less scattering line, high photographic sensitivity;

♦ Compared with isotope gamma rays, a variety of accelerator ray energies MeV can be selected;

♦ Strong ray penetration, transmittance thickness; High radiation intensity, short exposure time, continuous operation, high working efficiency;

♦ There are only X-rays when the machine is turned on, and there are no X-rays after the machine is turned off, there is no radiation residue problem, and there is no need to consider the waste source disposal problem;

♦ Flexible mechanical operation, multi-angle flaw detection of the workpiece, simple post-treatment process.