公开(公告)号：US20140192958A1

公开(公告)日：2014-07-10

申请号：US14146168

申请日：2014-01-02

Applicant: American Science and Engineering, Inc.

Inventor： Dan-Cristian Dinca ,  Martin Rommel ,  Seth Van Liew ,  Aleksandr Saverskiy

IPC: G01N23/02

CPC classification number: H01J35/02 ,  G01N23/04 ,  G01V5/0016

Abstract: Methods and an x-ray system for dynamically regulating x-ray dose. An x-ray beam is generated and collimated at a source collimator and detected after the x-ray beam traverses an inspected object. A filter may be dynamically interposed by translation of the filter between a focal spot of the source and the source collimator in such a manner as to maintain the portion of the x-ray beam that traverses the inspected object below a specified limit. Alternatively, an aperture of the source collimator may be varied in size or position relative to the focal spot.

Abstract translation: 方法和x射线系统，用于动态调节x射线剂量。 X射线束在源准直器处产生并准直，并在X射线束穿过检测对象之后检测。 过滤器可以通过在源的焦点和源准直仪之间平移过滤器而被动态地插入，以使得将穿过检测对象的X射线束的部分保持在指定极限以下。 或者，源准直仪的孔径可以在相对于焦斑的尺寸或位置上变化。