公开(公告)号：US08115178B2

公开(公告)日：2012-02-14

申请号：US12431595

申请日：2009-04-28

申请人： Roscoe E. Marrs ,  Norman W. Madden

发明人： Roscoe E. Marrs ,  Norman W. Madden

IPC分类号： G01T1/20

CPC分类号： G01T1/17 ,  G01T1/2018

摘要： According to one embodiment, a radiation detector comprises a scintillator and a photodiode optically coupled to the scintillator. The radiation detector also includes a bias voltage source electrically coupled to the photodiode, a first detector operatively electrically coupled to the photodiode for generating a signal indicative of a level of a charge at an output of the photodiode, and a second detector operatively electrically coupled to the bias voltage source for generating a signal indicative of an amount of current flowing through the photodiode.

摘要翻译： 根据一个实施例，辐射检测器包括闪烁体和光耦合到闪烁体的光电二极管。 辐射检测器还包括电耦合到光电二极管的偏置电压源，第一检测器，可操作地电耦合到光电二极管，用于产生指示光电二极管的输出处的电荷水平的信号;以及第二检测器，其操作电耦合到 用于产生指示流过光电二极管的电流量的信号的偏置电压源。

公开(公告)号：US20100270471A1

公开(公告)日：2010-10-28

申请号：US12431595

申请日：2009-04-28

申请人： Roscoe E. Marrs ,  Norman W. Madden

发明人： Roscoe E. Marrs ,  Norman W. Madden

IPC分类号： G01T1/20

CPC分类号： G01T1/17 ,  G01T1/2018

摘要： According to one embodiment, a radiation detector comprises a scintillator and a photodiode optically coupled to the scintillator. The radiation detector also includes a bias voltage source electrically coupled to the photodiode, a first detector operatively electrically coupled to the photodiode for generating a signal indicative of a level of a charge at an output of the photodiode, and a second detector operatively electrically coupled to the bias voltage source for generating a signal indicative of an amount of current flowing through the photodiode.

摘要翻译： 根据一个实施例，辐射检测器包括闪烁体和光耦合到闪烁体的光电二极管。 辐射检测器还包括电耦合到光电二极管的偏置电压源，第一检测器，可操作地电耦合到光电二极管，用于产生指示光电二极管的输出处的电荷水平的信号;以及第二检测器，其操作电耦合到 用于产生指示流过光电二极管的电流量的信号的偏置电压源。

公开(公告)号：US6115452A

公开(公告)日：2000-09-05

申请号：US186875

申请日：1998-11-04

申请人： Roscoe E. Marrs

发明人： Roscoe E. Marrs

IPC分类号： A61B6/00 ,  G01N23/225 ,  G21K5/02 ,  H05G2/00 ,  G21G4/00

CPC分类号： A61B6/482 ,  A61B6/481 ,  A61B6/504 ,  G01N23/2257 ,  G21K5/02 ,  H05G2/00 ,  A61B6/4092 ,  A61B6/4241 ,  A61B6/502

摘要： An extremely small (1-250 micron FWHM) beam of slow highly charged ions deexciting on an x-ray production target generates x-ray monochromatic radiation that is passed through a specimen and detected for imaging. The resolution of the x-ray radiograms is improved and such detection is achieved with relatively low dosages of radiation passing through the specimen. An apparatus containing an electron beam ion trap (and modifications thereof) equipped with a focusing column serves as a source of ions that generate radiation projected onto an image detector. Electronic and other detectors are able to detect an increased amount of radiation per pixel than achieved by previous methods and apparati.

摘要翻译： 在X射线产生目标上去激发的非常小的（1-250微米FWHM）慢速高电荷离子束产生通过样品并检测成像的X射线单色辐射。 x射线放射图的分辨率得到改善，并且通过穿过样本的相对低的辐射剂量实现了这种检测。 装备有聚光柱的电子束离子阱（及其变型）的装置用作产生投射到图像检测器上的辐射的离子源。 电子和其他检测器能够检测到比以前的方法和装置实现的每像素增加的辐射量。