Substitution of Co-60 with Electron Accelerator

Beamcomplex provides a seamless transition from CO-60 sources to electron accelerators in existing gamma irradiation centers.

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Beamcomplex electron accelerators are available in two models:


  • Electron accelerator with an energy of 5 MeV and a power of 50 kW, which is equivalent to 330 kCi in gamma radiation.
  • Electron accelerator with an energy of 5 MeV and a power of 100 kW, equivalent to 660 kCi in gamma radiation.
The electron accelerator's outlet device has two windows. One window emits E-beam and X-Ray, which irradiate boxes and bags with products vertically; the second window emits X-Ray, which irradiates products on pallets horizontally.

Double-window outlet device

SMOOTH TRANSITION FROM CO-60 TO ELECTRON ACCELERATOR

During the step-by-step transition from Co-60 sources to electron accelerators, Beamcomplex engineers study the customer's site and the feasibility of utilizing existing infrastructure systems.


Based on these findings, Beamcomplex engineers design the electron accelerator installation, taking into account the necessary infrastructure changes (installation of a new conveyor system, construction of a new bunker, or use of an existing bunker and fabrication of additional parts for a labyrinth-type bunker to continuously supply the products to the conveyor system).


ELECTRON ACCELERATOR INSTALLATION OPTIONS


1) The electron accelerator may be installed in a bunker after Co-60 disposal. In this case, the existing bunker, as well as the conveyor system and all equipment will be used without changes. It will only be necessary to increase the total energy supply to the facility.
2) The electron accelerator may be installed to replace Co-60 during its use and until its disposal. Such option has two variations:

- in case of wet storage of Co-60 and processing products underwater, it is possible to place the electron accelerator in a room with Co-60. This will require the installation of a new conveyor system and the construction of concrete radiation shield for the module with an electron accelerator. As a result, wet product processing with Co-60, as well as product processing with E-beam/X-Ray using the the complex can be carried out in parallel until Co-60 is disposed. After disposal, the center's specialists will process the products only at the complex.

- in case of dry storage of Co-60 and product processing in a concrete bunker, it is necessary to locate the accelerator in the adjacent room and ensure its local radiation shield (concrete/metal). In this case, it is possible to use the existing conveyor system and, if the old bunker configuration allows, E-beam/X-rays can be directed into the bunker with Co-60 through a slot in the wall to irradiate the products with both Co-60 and E-beam/X-Ray in parallel until Co-60 is disposed.

Advantages of smooth transition from Co-60 to electron accelerator:


1) Electron accelerator can replace Co-60 of both wet and dry storage.
2) By installing the electron accelerator before Co-60 is disposed, you ensure an uninterrupted transition of product processing from Co-60 to E-beam/X-Ray while retaining customers and eliminating the risk of financial losses.
3) The specialists are trained to work on the electron accelerator in advance.

4) The full scope of documents permitting operation of the electron accelerator and product processing in E-beam/X-Ray modes is prepared in advance.

Wet and dry storage of Co-60

SCOPE OF WORK TO EXECUTE CO-60 SOURCE SUBSTITUTION PROJECT
1) Electron accelerator and necessary additional equipment delivery
2) Construction of a new radiation bunker or upgrading of an existing one
3) Conveyor system installation
4) Cooling system installation
5) Radiation shield installation
6) Training of the customer's personnel to operate the electron accelerator
7) Commissioning of the electron accelerator

1. Co-60 Source

2. Electron Accelerator in Workshop 1

3. Electron Accelerator in Workshop 2

OPERATIONAL ADVANTAGES OF BEAMCOMPLEX ELECTRON ACCELERATOR COMPARED TO CO-60 SOURCES
Due to the high speed of accelerated electrons, product treatment throughput increases by 20% compared to the processing by Co-60.
Electron accelerators consume only electrical energy during product irradiation.
Low operating costs for consumable materials, excluding electricity costs.
No need to spend funds on new Co-60 isotopes every 5 years or on their complex replacement and disposal.
Co-60 prices increase faster vs. electrical energy costs.
The best DUR coefficient in a product is achieved owing to the high focusing of radiation beam.
Beamcomplex electron accelerators may be powered from self-contained power sources.
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