公开(公告)号：US20180088247A1

公开(公告)日：2018-03-29

申请号：US15824075

申请日：2017-11-28

Applicant: C-Rad Imaging AB

Inventor： Kristofer MAAD ,  Gunnar NORBERG

IPC: G01T1/185 ,  G01T1/29

CPC classification number: G01T1/185 ,  G01T1/2935

Abstract: A converter unit configured to convert incident photons into electrons comprises multiple blind holes forming respective ionization chambers. The converter unit is preferably arranged in a detector, such as X-ray detector or absolute radiation dose measurement detector, additionally comprising an electron amplification device and/or a readout device.

公开(公告)号：US09851452B2

公开(公告)日：2017-12-26

申请号：US14017656

申请日：2013-09-04

Applicant: C-Rad Imaging AB

Inventor： Kristofer Maad ,  Gunnar Norberg

IPC: G01T1/18 ,  G01T1/185 ,  G01T1/29

CPC classification number: G01T1/185 ,  G01T1/2935

Abstract: A converter unit configured to convert incident photons into electrons comprises multiple blind holes forming respective ionization chambers. In additional embodiments, the converter unit is arranged in a detector, such as an X-ray detector or absolute radiation dose measurement detector, additionally comprising an electron amplification device and/or a readout device.

公开(公告)号：US20150060685A1

公开(公告)日：2015-03-05

申请号：US14017656

申请日：2013-09-04

Applicant: C-Rad Imaging AB

Inventor： Kristofer Maad ,  Gunnar Norberg

IPC: G01T1/185

CPC classification number: G01T1/185 ,  G01T1/2935

Abstract: A converter unit configured to convert incident photons into electrons comprises multiple blind holes forming respective ionization chambers. In additional embodiments, the converter unit is arranged in a detector, such as an X-ray detector or absolute radiation dose measurement detector, additionally comprising an electron amplification device and/or a readout device.

Abstract translation: 被配置为将入射光子转换成电子的A转换器单元包括形成各个电离室的多个盲孔。 在另外的实施例中，转换器单元布置在另外包括电子放大装置和/或读出装置的检测器中，例如X射线检测器或绝对辐射剂量测量检测器。

公开(公告)号：US10134571B1

公开(公告)日：2018-11-20

申请号：US15880612

申请日：2018-01-26

Applicant: C-Rad Imaging AB

Inventor： Gunnar Norberg ,  Daniel Muñoz

IPC: H01J47/02 ,  G01T1/28 ,  H04N5/32 ,  H01J31/08 ,  G01T1/185 ,  G06T1/00

Abstract: A detector (100) comprises an upstream ionization chamber (110), a downstream detector chamber (120) and a signal processor (160). The ionization chamber (110) comprises a first electrode (111), a second electrode (112) and an ionization chamber gas (114). The detector chamber (120) comprises a converter unit (130) adapted to convert incident radiation (6) into electrons (8), an electron amplification device (140) adapted to produce further electrons (9) from the electrons (8), a read-out device (150) adapted to generate a signal representative of the incident radiation (6) and a detector chamber gas (121). The signal processor (160) is adapted to generate a corrected signal by processing the signal representative of the incident radiation (6) based on a current signal representative of an ionization current measured between the first electrode (111) and the second electrode (112) and induced by the incident radiation (6).

公开(公告)号：US10067241B2

公开(公告)日：2018-09-04

申请号：US15824075

申请日：2017-11-28

Applicant: C-Rad Imaging AB

Inventor： Kristofer Maad ,  Gunnar Norberg

IPC: H01J47/00 ,  G01T1/185 ,  G01T1/29

Abstract: A converter unit configured to convert incident photons into electrons comprises multiple blind holes forming respective ionization chambers. The converter unit is preferably arranged in a detector, such as X-ray detector or absolute radiation dose measurement detector, additionally comprising an electron amplification device and/or a readout device.