A Method for Optimizing the Layout of Discrete Crystals in Polyhedral Detectors

A technology of discrete crystals and detectors, which is applied in the field of optimizing the layout of discrete crystals in polyhedral detectors, can solve the problems of expanding the reaction depth effect, increasing parallax, and reducing the spatial resolution of the system, so as to ensure the wiring arrangement and reduce the production and processing costs , simple and systematic effect
CN110568470BActive Publication Date: 2020-12-08HUAZHONG UNIV OF SCI & TECH
5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH
Publication Date
2020-12-08

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention belongs to the field of crystal detectors, and discloses a method for optimizing the layout of discrete crystals in a polyhedral detector. The method comprises the following steps: (a) for a polyhedral detector, determining the shape of a minimum structure unit and the radius value range of a circumcircle; (b) drawing a plurality of grid charts, placing the minimum structure unit ineach grid chart, and calculating the maximum number of filling units included in the minimum structure unit in each grid chart so as to calculate the filling rate of the minimum structure unit; and (c) taking the grid size of the grid chart corresponding to the maximum filling rate in all the grid charts as the size of the circumcircle of the minimum structure unit so as to obtain the size of theminimum structure unit and the filling rate of the minimum structure unit and realize the optimization of the layout of discrete crystals in the polyhedral detector. According to the invention, the optimal layout of discrete crystals in the polygonal detector is realized, and the effective coverage area of the detector is improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of crystal detectors, and more specifically relates to a method for optimizing the layout of discrete crystals in a polyhedron detector. Background technique

[0002] For the traditional annular PET system developed for whole-body scanning, when imaging the brain, most (>80%) of the signal is lost and not detected, resulting in low system sensitivity and low image signal-to-noise ratio, making it difficult to perform high-performance It is difficult to effectively observe the dynamic process of metabolism inside the brain.

[0003] The spherical PET system can be used for dynamic monitoring of the metabolism inside the brain. Due to the small radius, large solid space angle, less signal loss, and high crystal space filling rate, it has higher system sensitivity and spatial resolution. However, due to the difficulties in detector design, electronic system design and image reconstruction technology, spherical struct...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More