公开(公告)号：US11901153B2

公开(公告)日：2024-02-13

申请号：US17249558

申请日：2021-03-05

Applicant: PCT Ebeam and Integration, LLC

Inventor： Karl E. Swanson ,  John Charles Drenter ,  Paul Michael Fletcher

IPC: H01J35/08 ,  H01J35/18 ,  H01J35/12 ,  H01J35/06

CPC classification number: H01J35/116 ,  H01J35/13 ,  H01J35/18 ,  H01J35/06 ,  H01J35/186 ,  H01J2235/068 ,  H01J2235/1204 ,  H01J2235/1262 ,  H01J2235/165 ,  H01J2235/168 ,  H01J2235/18

Abstract: An x-ray apparatus includes a vacuum chamber that includes a window for exit of x-rays. Electrons are generated at a cathode within the vacuum chamber and accelerated toward a target anode associated with the window. An x-ray generating layer is included as a surface of the target anode to receive the electrons emitted by the cathode and to create x-rays. A blocking path blocks over 70% of the free electrons reaching said target anode from continuing on to exit through the window, while allowing x-rays leaving the x-ray generating layer to continue along the selectively blocking path to exit through the window. The x-ray apparatus is capable of operating at low voltage and relatively high power to reduce the necessary shielding and the corresponding weight of the apparatus yet allow more ready absorption of x-rays by items being irradiated.

公开(公告)号：US20220285120A1

公开(公告)日：2022-09-08

申请号：US17249558

申请日：2021-03-05

Applicant: PCT Ebeam and Integration, LLC

Inventor： Karl E. Swanson ,  John Charles Drenter ,  Paul Michael Fletcher

IPC: H01J35/06 ,  H01J35/08 ,  H01J35/18

Abstract: An x-ray apparatus includes a vacuum chamber that includes a window for exit of x-rays. Electrons are generated at a cathode within the vacuum chamber and accelerated toward a target anode associated with the window. An x-ray generating layer is included as a surface of the target anode to receive the electrons emitted by the cathode and to create x-rays. A blocking path blocks over 70% of the free electrons reaching said target anode from continuing on to exit through the window, while allowing x-rays leaving the x-ray generating layer to continue along the selectively blocking path to exit through the window. The x-ray apparatus is capable of operating at low voltage and relatively high power to reduce the necessary shielding and the corresponding weight of the apparatus yet allow more ready absorption of x-rays by items being irradiated.