公开(公告)号：US20190310384A1

公开(公告)日：2019-10-10

申请号：US16470385

申请日：2017-12-21

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Christiaan KOK

IPC: G01T1/20 ,  G01T1/164

Abstract: The invention relates to a combined detector (660) comprising a gamma radiation detector (100) and an X-ray radiation detector (661). The gamma radiation detector (100) comprises a gamma scintillator array (101x, y), an optical modulator (102) and a first photodetector array (103a, b) for detecting the first scintillation light generated by the gamma scintillator array (101x, y). The optical modulator (102) is disposed between the gamma scintillator array (101x, y) and the first photodetector array (103a, b) for modulating a transmission of the first scintillation light between the gamma scintillator array (101x, y) and the first photodetector array (103a, b). The optical modulator (102) comprises at least one optical modulator pixel having a cross sectional area (102′) in a plane that is perpendicular to the gamma radiation receiving direction (104). The cross sectional area of each optical modulator pixel (102′) is greater than or equal to the cross sectional area of each photodetector pixel (103′a, b).

公开(公告)号：US20190243005A1

公开(公告)日：2019-08-08

申请号：US16329824

申请日：2017-09-06

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Herfried Karl WIECZOREK ,  Johannes Wilhelmus Maria JACOBS ,  Herman STEGEHUIS ,  Alessandro RADAELLI ,  Christiaan KOK ,  Peter Lex ALVING

IPC: G01T1/164 ,  A61B6/06 ,  A61B6/00

CPC classification number: G01T1/1644 ,  A61B6/037 ,  A61B6/06 ,  A61B6/4233 ,  A61B6/4258 ,  A61B6/4291 ,  A61B6/4417 ,  A61B6/4441 ,  A61B6/486 ,  A61B6/487 ,  A61B6/5235 ,  G01T1/1611 ,  G01T1/1647 ,  G01T1/1648

Abstract: The invention relates to a combined imaging detector for detection of gamma and x-ray quanta comprising an x-ray detector (31) for generating x-ray detection signals in response to detected x-ray quanta and a gamma detector (32) for generating gamma detection signals in response to detected gamma quanta. The x-ray detector (31) and the gamma detector (32) are arranged in a stacked configuration along a radiation-receiving direction (33). The gamma detector (32) comprises a gamma collimator plate (320) comprising a plurality of pinholes (321), and a gamma conversion layer (322, 324) for converting detected gamma quanta into gamma detection signals.