Neutron therapy apparatus

A neutron therapy apparatus, comprising:

• a beam shaping assembly including a moderator and a reflector surrounding the moderator, wherein the moderator moderates neutrons to a predetermined energy spectrum and the reflector guides deflected neutrons back to enhance the neutron intensity in the predetermined energy spectrum;
• a first supporting part for retaining the beam shaping assembly;
• a neutron generator embedded inside the beam shaping assembly, wherein the neutron generator generates neutrons after irradiated by an ion beam;
• a containing room for containing the beam shaping assembly;
• and
• an irradiation room for receiving an irradiated object,
• wherein part of the beam shaping assembly extends from the containing room to the irradiation room and forms a gap, the beam shaping assembly connects with a shielding assembly for shielding radioactive rays leaked from the irradiation room, the shielding assembly moves together with the beam shaping assembly, and the shielding assembly covers the gap and shields the radioactive rays leaked from the irradiation room along with movement of the beam shaping assembly,
• wherein the shielding assembly comprises at least two shielding parts located at both sides of the beam shaping assembly, one end of the shielding part is connected with the first supporting part and the other end is fixed on the beam shaping assembly, when the beam shaping assembly moves, the shielding part located at one side of the beam shaping assembly stretches out while the shielding part located at the other side of the beam shaping assembly contracts.

A neutron therapy apparatus, comprising:

• a beam shaping assembly including a moderator and a reflector surrounding the moderator, wherein the moderator moderates neutrons to a predetermined energy spectrum and the reflector guides deflected neutrons back to enhance the neutron intensity in the predetermined energy spectrum;
• a neutron generator embedded inside the beam shaping assembly, wherein the neutron generator generates neutrons after irradiated by an ion beam;
• at least two tubes for transmitting the ion beam to the neutron generator;
• deflection magnets for changing the transmission direction of the ion beam, wherein the deflection magnets comprise at least one specific deflection magnet;
• a supporting frame for supporting the beam shaping assembly, wherein the supporting frame comprises a first track and a supporting part for supporting the specific deflection magnet, the supporting part comprises a second track, and the specific deflection magnet moves in the second track while the beam shaping assembly moves in the first track;
• and
• a shielding assembly for shielding radioactive rays leaked from the beam shaping assembly;
• wherein the beam shaping assembly retains on the supporting frame and moves on the supporting frame to irradiate the irradiated object in multiple different angles, the shielding assembly moves on the supporting frame together with the beam shaping assembly.