RU-2024133430-A - METHOD AND SYSTEM FOR IRRADIATION AND ACTIVATION OF AN OBJECT

Inventors

• КОННЕЛЛ, Саймон Генри
• КУК, Мартин Нкулулеко Хоган

Assignees

• ЮНИВЕРСИТИ ОФ ЙОХАННЕСБУРГ

Dates

Publication Date

20260507

Application Date

20241107

Priority Date

20190123

Claims (12)

1. 1. A method for irradiating an object located in the irradiation zone, wherein this method provides for:
2. generating gamma rays comprising at least gamma ray photons of a given energy level at which isotopes are produced as a result of a nuclear reaction between the photons and chemical elements occurring in the object, wherein the gamma rays are generated in a given manner to uniformly irradiate the object; and
3. irradiating the object with generated gamma rays so as to ensure substantially uniform irradiation and activation of the object.
4. 2. The method according to paragraph 1, characterized in that this method provides for moving the object along a path of movement, in at least one direction of movement, wherein an irradiation zone is located along the path of movement.
5. 3. The method according to claim 1 or 2, wherein the generated gamma rays travel in a direction of propagation that is at least perpendicular to the plane in which the irradiation zone is located.
6. 4. The method according to any of the preceding claims, wherein the generated gamma rays have a large and uniform cross-sectional area or a shape adapted to the geometry of the area, volume or irradiation zone to be activated.
7. 5. The method according to claim 4, wherein the cross-sectional shape of the gamma rays approaches the shape of an ellipse, a circle, or a circular shape.
8. 6. The method according to any one of the preceding claims, wherein the spatial distribution of the intensity of the generated gamma rays is a substantially flat-topped distribution.
9. 7. A method according to any of the preceding paragraphs, characterized in that the method provides for scanning the generated gamma rays relative to the irradiation zone at a given scanning frequency.
10. 8. The method of claim 7, wherein the gamma rays are scanned across the irradiation zone in a reciprocating manner or in a single sweep; and/or wherein the sweep frequency is related to the speed at which the object passes through the irradiation zone.
11. 9. A method according to any one of the preceding claims, characterized in that the method comprises generating gamma rays by controlling at least one beam of electrons emitted by a source of electron beams that are to fall on a material with a high atomic number in a predetermined manner.
12. 10. The method according to claim 9, characterized in that the method provides for the generation of gamma rays with a large cross-sectional area by defocusing or fan-shaped spreading of at least one electron beam before it falls on a material with a high atomic number.