Technology- Standing Wave s-band linacs
The accelerator To irradiate your product, you need a high energy, high power beam of electrons. The specific technology used to accelerate the electrons is less important to you than getting the power and energy to match your need at an acceptable cost. Beam is Beam! Nonetheless, a key component is the accelerator and it must be reliable. Mevex builds RF linear accelerators with standing wave (SW) on-axis coupled structures. These linacs are the world’s most widely used.
The Structure Starting with ingots of oxygen free high conductivity (OFHC) copper carefully specified for grain size we supervise the machining using controlled sulphur-free cutting oils to tight dimensional tolerances. The cavity shape is determined using industry standard computer codes. We inspect the machined parts dimensionally and carry out rf tests before final assembly and brazing in a hydrogen rich atmosphere in our specially designed furnaces. Structures from 3 MeV to 25 MeV have been built
Electron Gun Electrons emitted from a heated surface are surrounded by focusing and pre-acceleration elements. Our gun design is particularly important for high lifetime availability. Our standard industrial emitters are readily available worldwide. We pretest all guns in house.
Beam scanning system Electrons emerge from the accelerating column as a pulsed pencil beam. We enlarge the spot and magnetically sweep it across your product on the conveyor. The width and frequency of the sweep are customized to your product dimensions and rate of processing required.
RF Power A radio frequency signal is produced in our custom-designed solid state generator and is amplified by one or more commercially available klystrons. The amplified signal is fed to the accelerating cavities. The frequency is continuously monitored and matched to the resonant frequency of the accelerating cavities.
Control systems Mevex uses the Siemens S7 industrial controller. The use of this industry standard controllers ensures ready access to parts and service worldwide