accelerator irradiation device
Writer: Sterilization Time: 2020-09-01 Browse: 690 ℃
Characteristics of accelerator irradiation device
Due to the shortage of cobalt-60 source market, the environmental problems of gamma irradiation equipment, and the technical breakthroughs in energy, beam current, power and safety of industrial accelerator, especially the improvement of infrabeam device, the irradiation application of accelerator has a great development trend, especially in radiation disinfection and irradiated food, which can also play the characteristics of high energy, high power and large processing capacity Several new accelerators developed in recent years are introduced.
Difference between industrial electron accelerator and gamma radiation source
Compared with 60Co, the power is large, generally from several kW to several hundred kW;
The dose rate produced is 3 to 4 orders of magnitude higher than that of 60Co;
The direction is concentrated and the energy utilization rate is high;
High production efficiency, suitable for large-scale irradiation industrial processing;
Radiation protection is relatively easy, there is radiation when the machine is started, but not when it is turned off;
When the electron energy is less than 10 MeV, no induced radioactivity is produced.
Disadvantages of electron accelerator:
The low penetration of electron beam limits its application.
Accelerator and X-ray equipment
Due to technical, economic and historical factors, cobalt-60 irradiation device is still the main equipment for food irradiation. However, in recent years, due to the shortage of cobalt-60 source market, the increase of cost and transportation problems, the potential environmental problems of cobalt-60 irradiation device have been found.
The industrial accelerator itself has made great breakthroughs in energy, beam current, power and safety, especially with the improvement of the infrabeam device, the irradiation application of the accelerator has a great development trend, especially in the irradiation of food, it can also play the characteristics of high energy, high power and large processing capacity
The use and substitution of radioactive sources, a report approved by the U.S. Congress, also recommends the gradual use of accelerators instead of radioactive sources.
It will be a development trend for accelerator to replace Co-60 irradiation device.