Electronic beam machining system

An electronic beam machining system, comprising:

• a vacuum chamber;
• an electron gun located in the vacuum chamber and configured to emit an incident electron beam;
• a holder located in the vacuum chamber, spaced from the electron gun, and configured to secure an object;
• a diffraction unit located between the electron gun and the holder, wherein the diffraction unit comprises a two-dimensional nanomaterial comprising a single layer of atoms, the incident electron beam is configured to transmit the two-dimensional nanomaterial to form a transmission electron beam and a plurality of diffraction electron beams, and the transmission electron beam and the plurality of diffraction electron beams radiate the object to form a transmission spot and a plurality of diffraction spots;
• and
• a control computer configured to control the electronic beam machining system.