An electron beam 3D printing machine, comprising a chamber for generating and accelerating an electron beam and an operating chamber in which a metal powder is melted, with the consequent production of a three-dimensional product. The chamber for generating and accelerating an electron beam houses means for generating an electron beam and means for accelerating the generated electron beam, while the operating chamber houses at least one platform for depositing the metal powder, metal powder handling means and electron beam deflection means. The accelerator means for the generated electron beam comprise a series of resonant cavities fed with an alternating signal.

The present disclosure provides a drawer-type carrying device for an accelerator and an cabin structure for the accelerator, the drawer-type carrying device for the accelerator includes a frame mechanism and a drawing mechanism. The frame mechanism is used for installing the accelerator; the drawing mechanism is connected with the frame mechanism and the frame mechanism is movable relative to the drawing mechanism. The cabin structure for the accelerator includes a cabin, a shielding mechanism and a drawer-type carrying device for the accelerator. The cabin has a working area and a maintenance area. The shielding mechanism is disposed in the working area and has a side opening door facing towards the maintenance area. The frame mechanism is capable of drawn from the shielding mechanism into the maintenance area when the side opening door is opened.

The present disclosure provides a drawer-type carrying device for an accelerator and an cabin structure for the accelerator, the drawer-type carrying device for the accelerator includes a frame mechanism and a drawing mechanism. The frame mechanism is used for installing the accelerator; the drawing mechanism is connected with the frame mechanism and the frame mechanism is movable relative to the drawing mechanism. The cabin structure for the accelerator includes a cabin, a shielding mechanism and a drawer-type carrying device for the accelerator. The cabin has a working area and a maintenance area. The shielding mechanism is disposed in the working area and has a side opening door facing towards the maintenance area. The frame mechanism is capable of drawn from the shielding mechanism into the maintenance area when the side opening door is opened.

An emitter to deliver an electron flow towards particulate matter includes a base, a conductive track fixed to the base, and a plurality of conductive pins fixed to the base and extending therefrom in a predetermined direction and electrically coupled to the track so as to receive a negative electric charge therefrom. The emitter also includes a plurality of tubes, fixed to the base, and extending therefrom in said direction, with each of the tubes having an interior extending away from the base to an open end, and with each tube having at least one of the pins located in the interior thereof.

An emitter to deliver an electron flow towards particulate matter includes a base, a conductive track fixed to the base, and a plurality of conductive pins fixed to the base and extending therefrom in a predetermined direction and electrically coupled to the track so as to receive a negative electric charge therefrom. The emitter also includes a plurality of tubes, fixed to the base, and extending therefrom in said direction, with each of the tubes having an interior extending away from the base to an open end, and with each tube having at least one of the pins located in the interior thereof.

A flexible ion generator device that includes a dielectric layer having a first end, a second end, a first side, a second side, a top side, and a bottom side, at least one trace positioned on the dielectric layer and having a plurality of emitters engaged to the at least one trace. A plurality of lights disposed on the dielectric layer.

A flexible ion generator device that includes a dielectric layer having a first end, a second end, a first side, a second side, a top side, and a bottom side, at least one trace positioned on the dielectric layer and having a plurality of emitters engaged to the at least one trace. A plurality of lights disposed on the dielectric layer.

A flexible ion generator device that includes a dielectric layer having a first end, a second end, a first side, a second side, a top side, and a bottom side, at least one trace positioned on the dielectric layer and having a plurality of emitters engaged to the at least one trace. A plurality of lights disposed on the dielectric layer.

A flexible ion generator device that includes a dielectric layer having a first end, a second end, a first side, a second side, a top side, and a bottom side, at least one trace positioned on the dielectric layer and having a plurality of emitters engaged to the at least one trace. A plurality of lights disposed on the dielectric layer.

An electron beam irradiation device that can irradiate an object in water with an electron beam is provided. An acceleration tube 11 includes an acceleration space 21 in which an electron beam generated by an electron gun 12 is accelerated and an irradiation port 22 through which the electron beam accelerated in the acceleration space 21 can be irradiated to the outside. Hydrogen gas 32 supply means 13 can supply the acceleration space 21 with hydrogen gas 32 at a predetermined pressure. The hydrogen gas 32 supplied to the acceleration space 21 by the hydrogen gas 32 supply means 13 is emitted from the irradiation port 22 and the electron beam irradiated from the irradiation port 22 passes through the hydrogen gas 32 emitted from the irradiation port 22.