Related Experiment Video
Updated: Jun 24, 2026

Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor
Published on: May 7, 2021
Experimental research on rear collimator in gamma-ray industrial CT
1Division 501, INET, Tsinghua University, Beijing 100084, China. zhifang.wu@tsinghua.edu.cn
Abstract:
Rear collimator is one of the key components in the gamma-ray industrial CT, which plays an important role in removing scattering influence and improving the CT spatial resolution. High-performance CT is always associated with a high-quality collimator. By means of experiments, this paper discusses the behavior of collimators with different shapes and structures from the aspects of detector output signal, mass attenuation coefficient of the inspected object and quality of the actual CT image. The qualitative and quantitative results are reached, which are helpful for the design of high-performance industrial CT.
Related Concept Videos
Imaging Studies II: Positron Emission Tomography and Scintigraphy
Fundamental Principles of PET
Computed Tomography
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
Radiological Investigation I: X-ray and CT
