In a CT scanner, the X-rays are directed through the patient’s body and onto a detector, where they are captured and processed to create a cross-sectional image of the patient’s body. The X-ray tube in a CT scanner is designed to rotate around the patient’s body, producing a series of X-ray images from different angles.

彩超、内窥镜、螺旋CT、DR/X光机. 1、 CT探测器 的整体认识. 以经典的飞利浦Brilliance64 CT，出了名的稳定、皮实。 感慨一句：飞利浦的球管太XX耐操了，后面专门开一篇好好说道说道！ CT整体结构就机架和床两大块，所有CT都这样。 图1 飞利浦CT (来自互联网) 打开机架前盖，最亮眼是球管和探测器，如下图。 今天的主角是 探测器，CT最重要最神奇的部件。 图2 打开机架前盖. 继续，拆探测器的外壳， 中间那一长条就是探测器，明显可以看出是一块一块拼起来 …

2013年2月1日 · We describe the state-of-the-art of CT detection systems, their calibrations, software corrections and common performance metrics. The components of CT detection systems, such as scintillator materials, photodiodes, data acquisition electronics and anti-scatter grids, are discussed.

The increased use of CT scans has been the greatest in two fields: screening of adults (screening CT of the lung in smokers, virtual colonoscopy, CT cardiac screening, and whole-body CT in asymptomatic patients) and CT imaging of children.

2020年10月14日 · The detector is a part of a CT scan system that consists of various devices that are situated in an arc or a ring around the machine. They are used to measure the intensity of transmitted x-ray radiation along a beam that’s emitted from the x-ray source to a particular detector element.

2021年6月13日 · The detector array is a single vessel filled with gases of a high atomic number (Krypton / Xenon) and subdivided into separate detectors by tungsten septae. The x-rays ionise the gas and produce a signal at the collection electrodes.

2024年7月13日 · CT scanners were first introduced in 1971 with a single detector for brain study under the leadership of Sir Godfrey Hounsfield, an electrical engineer at EMI (Electric and Musical Industries Ltd). After that, it has undergone multiple improvements, with an increase in the number of detectors and a decrease in the scan time.

Quantum Technology ® is transforming CT by introducing photon-counting technology into clinical routine. At its core is the QuantaMax ® detector, which is equipped with a crystal semiconductor that is substantially different from a standard scintillation detector.

2023年11月2日 · Instrumentation refers to the specialized machinery and apparatuses used for conducting CT scans. This includes the x-ray machine, detectors, the circular gantry that houses both the x-ray machine and detectors while revolving around the patient, the patient table, and various electronic components responsible for overseeing the imaging procedure.

In this post we will give an overview of the different generations in the development of CT from 1 st to 5 th generation, along with a review of basic scan modes to perform standard CT scans on modern CT. This is the first time that CT was performed and …