公开(公告)号：US20170154751A1

公开(公告)日：2017-06-01

申请号：US14952986

申请日：2015-11-26

Applicant: MEVEX CORPORATION

Inventor： Peter W. A. BROWN ,  David A. BROWN ,  David J. HEPWORTH ,  David MACRILLO

IPC: H01J37/141 ,  A61L2/08

CPC classification number: H01J37/141 ,  A61L2/087 ,  G21K1/093 ,  G21K5/04

Abstract: An electron beam from an accelerator is injected into a vacuum chamber and bent approximately 90 degrees by an electromagnet, which can be translated along the vacuum chamber and along the propagation direction of the electron beam. Under the influence of the electromagnet, electrons exit the scan chamber through a thin metal vacuum barrier and are directed toward the product to be irradiated. There can be an x-ray converter located between the electron beam and the product. As the electromagnet moves along the scan chamber and along the direction of the electron beam, the bending angle of the electron beam can be adjusted as a function of the position of the electromagnet with respect to the product.

公开(公告)号：US20200023197A1

公开(公告)日：2020-01-23

申请号：US16039976

申请日：2018-07-19

Applicant: Mevex Corporation

Inventor： David A. BROWN ,  David J. HEPWORTH ,  Simon J. FORKNALL ,  Peter W.A. BROWN ,  David M. MACRILLO ,  Kevin Murray AUSTIN

IPC: A61N5/10

Abstract: A method of irradiating a target with a high power density irradiation beam is described. The method can use an irradiation system configured to output an irradiation beam through a vacuum window. The irradiation beam is scanned repetitively back and forth between two angular orientations of the irradiation beam as the irradiation beam strikes and traverses the vacuum window. The target is moved as the irradiation beam is scanned. The irradiation beam and the target are aligned. The scanning of the irradiations beam and the moving of the target are synchronized to each other. The scanning of the irradiation beam prevents localized overheating of the vacuum window and allows the irradiation beam to have a power density that would damage the vacuum window if the irradiation beam were not scanned.

公开(公告)号：US20170040080A1

公开(公告)日：2017-02-09

申请号：US15205579

申请日：2016-07-08

Applicant: MEVEX CORPORATION

Inventor： Peter W.A. BROWN ,  David A. BROWN ,  David J. HEPWORTH ,  David MACRILLO

IPC: G21K5/10 ,  G21K5/08

CPC classification number: G21K5/10 ,  G01N2223/643

Abstract: A system and method for irradiating a product in order to obtain an irradiated product that has a suitable irradiation dose uniformity ratio and is less expensive and faster than existing systems. The system includes a controller that varies the speed at which a product to be irradiated is moved across a radiation beam. The speed is varied in accordance with a speed function that can be a quadratic function of the distance between a position at which the surface of the product is irradiated and a reference position.

Abstract translation: 用于照射产品以获得具有合适的照射剂量均匀性比例并且比现有系统更便宜和更快的辐射产品的系统和方法。 该系统包括控制器，其改变被照射产品在辐射束上移动的速度。 速度根据可以是照射产品的表面的位置与基准位置之间的距离的二次函数的速度函数而变化。