R&D and Application of the X-band 2 MeV Small Focal Spot Accelerator
Targeting the requirements of on-site high-energy non-destructive testing on modem aviation engine turbine blades and other military and basic heavy industry products,the accelerator research team at Xihua University has independently de-signed and developed a core device,the X-band 2 MeV small focus accelerator tube,working with X-band miniaturization ac-celerator technology.They have also integrated and developed a movable X-band 2 MeV small focus accelerator radiation device.The device integrates several subsystems,including X-band small focus standing wave accelerator tube,magnetron,microwave transmission system,accelerator head made of vacuum system and shielding body,high-voltage pulse modulator,control system,and cooling system.Among them,the small focus acceleration tube adopts a standing wave electric coupling structure,with a length of less than 100 mm,an output energy of 2 MeV,a focus size of less than 0.7 mm,and a dose rate of greater than 40 cGy/min at 1 m.After the successful development of the X-band 2 MeV small focus accelerator,a movable 2 MeV small focus CT system was built based on the device,and the system performance was tested and applied.As a result,the obtained image spatial resolution was significantly better than that of similar S-band high-energy CT products.
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