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Radiation Sterilization

  • electron beam irradiation sterilization

electron beam irradiation sterilization

  • Product ID:Radiation Sterilization
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What is electron beam accelerator sterilization?

Electron-beam processing or electron irradiation (EBI) is a process that involves using electrons, usually of high energy, to treat an object for a variety of purposes. This may take place under elevated temperatures and nitrogen atmosphere. Possible uses for electron irradiation include sterilization and cross-linking of polymers.

What is an electron beam irradiation sterilization used for?

Electron accelerator irradiation processing system: it is a high-energy electron accelerator produced by the electron beam ionization technology. Irradiation insecticidal, sterilization, fresh-keeping processing, material modification, degradation and other treatment, which causes the death or sterility of harmful organisms, bacteria and microorganisms, and the modification or degradation of organic materials. Through the irradiation of different commodities, the safety of food can be guaranteed, the freshness of food can be prolonged, and the bacteria in medical and health products and cosmetics can be killed.
The material components and construction of product are the most important variables in dictating the sterilization modality to be used. 
The electron beam sterilization process begins with an electron beam accelerator. E-BEAM Services uses high power state of the art accelerators to create a powerful beam of electrons. The beam is scanned back and forth to create a curtain of fast electrons, which shower and safely ionize the materials that they strike. 

How do electron beam accelerator sterilization?

Electron energies typically vary from the keV to MeV range, depending on the depth of penetration required. The irradiation dose is usually measured in grays but also in Mrads (1 Gy is equivalent to 100 rad).

How do you make a electron accelerator?

Irradiation device for electronic components: a kind of high-energy electron accelerator irradiation device, with energy of 10MeV, power of 20kW, single processing capacity equivalent to 1350000 Curie cobalt source, its performance index is in the excellent level in China, and the irradiation speed is several times that of cobalt source. Irradiation principle of electron accelerator: the electron is accelerated by an electron gun structure accelerator tube through linear acceleration. In the process of transmission, the beam structure of microwave energy is accelerated by pulse microwave power and microwave electromagnetic field through the front coupler of the accelerator tube. The constant acceleration is focused to accelerate the output of high energy and high power electron beam accelerator and input into the scanning space, Magnetic force is used to open the electron beam with a certain width, and an output window is formed from the thin metal film. The moving object is irradiated by irradiation, so as to achieve the purpose of disinfection and sterilization.

How does an electron beam sterilization work?

Electron beam sterilization technology is a kind of sterilization technology using β - ray irradiation. It is a method of killing microorganisms by high-speed electron beam with energy of 3 mev-5 MeV produced by electron accelerator. Electron beam directly interacts with nuclear DNA, cuts off DNA molecular bond, or reacts with water in cell to form active state, which acts on polymer in cell to produce reproductive barrier. The irradiation dose for complete sterilization is 25 ~ 50kgy, which aims to kill all microorganisms except bacillus. The radiation dose of disinfection and sterilization is 1 ~ 10kGy, the purpose of which is to kill non spore producing pathogens in food, reduce microbial contamination and prolong the storage period. In a word, different radiation dose and electron energy should be controlled for different microorganisms.

How much does a electron beam accelerator sterilization cost?

E-BEAM Services uses the highest power accelerators for maximum throughput, boxes are dosed in a matter of seconds. In a four-hour period, E-BEAM Services can sterilize multiple truckloads where the typical gamma plant can process less than a truckload.
E-BEAM Services provides the most cost-effective radiation sterilization for low to medium density medical devices. For example, boxes with low or low to medium density could be successfully sterilized. However, a tall medium density box might not receive good enough dose distribution within the box. If you were to repackage in a shorter box, a medium-density box could then be successfully sterilized. Take a look at the price calculator on our website and figure the prize to sterilize your product. We know that the conversion from your current sterilization method to electron beam takes effort and can cost $10,000 or more. Calculate your cost savings and determine how quickly you will recoup your costs. We can help you with those calculations and help enable your conversion to high-quality, reliable, cost effective electron beam sterilization.

Electron accelerator process

Electron accelerators use electric fields to speed up and increase the energy of a beam of electrons, which are steered and focused by magnetic fields. The electron source provides the electrons, such as protons or electrons, that are to be accelerated. The beam of electrons travels inside a vacuum in the metal beam pipe. The vacuum is crucial to maintaining an air and dust free environment for the beam of electrons to travel unobstructed. Electromagnets steer and focus the beam of electrons while it travels through the vacuum tube.

Electron-beam processing

Electron-beam processing involves irradiation (treatment) of products using a high-energy electron-beam accelerator. Electron-beam accelerators utilize an on-off technology, with a common design being similar to that of a cathode ray television.
The basic components of a typical electron-beam processing device .An electron gun (consisting of a cathode, grid, and anode) is used to generate and accelerate the primary beam. A magnetic optical (focusing and deflection) system is used for controlling the way in which the electron beam impinges on the material being processed (the "workpiece"). In operation, the gun cathode is the source of thermally emitted electrons that are both accelerated and shaped into a collimated beam by the electrostatic field geometry established by the gun electrode (grid and anode) configuration used. The electron beam then emerges from the gun assembly through an exit hole in the ground-plane anode with an energy equal to the value of the negative high voltage (gun operating voltage) being applied to the cathode. This use of a direct high voltage to produce a high-energy electron beam allows the conversion of input electrical power to beam power at greater than 95% efficiency, making electron-beam material processing a highly energy-efficient technique. After exiting the gun, the beam passes through an electromagnetic lens and deflection coil system. The lens is used for producing either a focused or defocused beam spot on the workpiece, while the deflection coil is used to either position the beam spot on a stationary location or provide some form of oscillatory motion.

What is the difference between E beam and gamma sterilization?

Benefits of Electron-Beam Sterilization

Electron-beam irradiation (e-beam - sometimes called beta irradiation) is a technique used commonly to sterilize pharmaceutical packaging products and medical devices. It operates by directing a continuous flow of electrons through the articles being sterilized. Transfer of energy from the e-beam breaks the chains of DNA in organisms, rendering them inactive, and the articles irradiated as sterile. 
E-beam sterilization has many advantages; it is convenient, gentle and effective. E-beam sterilization can be performed continuously on product in its final package (e.g., product supplied in nests used in flexible fillers). Compared to steam sterilization, it operates at a much lower temperature, and is suitable for products having hard-to-reach areas (e.g., capped cartridges). Compared to gamma irradiation, it poses a much lower risk of degradation (due to shorter exposure times); compared to ethylene oxide exposure, it eliminates the risk of ethylene oxide absorption and subsequent leaching into drug product.
A point to note is that e-beam sterilization can cause a temporary discoloration (yellowish tint) in polymer products, including cyclic olefin polymer products. This is due to the presence of short-lived free radicals. However, after the quenching of these radicals, there is no resultant risk to drug product, and in particular, biologic products. 

How are medical supplies sterilized?

The electron beam (E-beam) irradiation process uses high-energy electrons for a variety of applications, such as the sterilization of single-use medical devices

classification of electron accelerators

  • linear electron accelerator
  • 4mev linear electron accelerator
  • a free electron accelerator
  • tabletop electron accelerator
  • large electron accelerator machines
  • Low-energy accelerator
  • Medium-energy accelerator
  • High-energy accelerator

electron beam irradiation sterilization advantages

Energy saving, safe and reliable, good effect, low cost packaging food sterilization technology has been developed and applied, greatly promoting the production and development of packaged food. Food is easy to deteriorate, so the food and meat industry has been trying to find effective methods of food preservation.
  • 1. Green environmental protection, the whole process does not add any chemical substances, only through the electron accelerator generated by the ray penetration, turn off the power supply will not produce radiation, no radiation residue, is currently the choice of most sterilization methods.
  • 2. There are no side effects on the product. The processing process is carried out at room temperature. The product will not cause nutrient loss. Therefore, electronic rapid sterilization is also called cold processing.
  • 3. Convenient disinfection. The product can be irradiated directly without disassembling the outer box.
  • 4. Sterilization is controllable, and technicians can set the sterilization radiation intensity to meet the expected standard according to the microbial content of the product before sterilization. Sterilization can be set according to the microbial standard of the product.
  • 5. The irradiation sterilization data can be measured. After the sterilization intensity is formulated, the technical personnel can determine whether the sterilization conforms to the industry standard of the product according to the microbiological test, and meets the customer requirements.

electron accelerator sterilization

Our team specializes in providing electron beam radiators.