Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Discovery of a Thermostable Nigerose Phosphorylase for the Efficient Chemoenzymatic Radiosynthesis of a <i>S. aureus</i>-Targeted <sup>18</sup>F-Disaccharide.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine·2026
Same author

Evaluation of radiation damage effects of low-energy Auger and conversion electrons emitted by <sup>134</sup>Ce decay using a Monte Carlo method.

Scientific reports·2026
Same author

Tumor response and tolerability under fractionated x-ray irradiation in a mouse xenograft model.

Physics in medicine and biology·2026
Same author

Development and Interpretable Machine Learning-Based Prediction of Cardiovascular Disease Risk in Chinese COPD Patients: An Analysis of the CHARLS Database.

International journal of chronic obstructive pulmonary disease·2026
Same author

A Prodrug Strategy to Conditionally Trap Therapeutic Payloads for Improved Tumor Retention.

ACS central science·2026
Same author

Pair production tomography enables imaging of MeV-scale gamma-emitting theranostic radionuclides.

Research square·2026

Related Experiment Video

Updated: Mar 29, 2026

Visualization of Low-Level Gamma Radiation Sources Using a Low-Cost, High-Sensitivity, Omnidirectional Compton Camera
06:28

Visualization of Low-Level Gamma Radiation Sources Using a Low-Cost, High-Sensitivity, Omnidirectional Compton Camera

Published on: January 30, 2020

13.4K

An energy-optimized collimator design for a CZT-based SPECT camera.

Fenghua Weng1, Srijeeta Bagchi2, Yunlong Zan1

  • 1School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China.

Nuclear Instruments & Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
|December 8, 2015
PubMed
Summary

This study developed an energy-optimized collimator for CZT-based gamma cameras, improving SPECT imaging performance across various radio-tracers. The novel design enhances sensitivity and resolution while reducing scatter and penetration, outperforming commercial collimators.

Keywords:
CZT detectorMonte Carlo simulationSPECTcollimator design

More Related Videos

Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor
10:24

Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor

Published on: May 7, 2021

2.9K
High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
13:31

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

Published on: December 22, 2015

15.9K

Related Experiment Videos

Last Updated: Mar 29, 2026

Visualization of Low-Level Gamma Radiation Sources Using a Low-Cost, High-Sensitivity, Omnidirectional Compton Camera
06:28

Visualization of Low-Level Gamma Radiation Sources Using a Low-Cost, High-Sensitivity, Omnidirectional Compton Camera

Published on: January 30, 2020

13.4K
Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor
10:24

Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor

Published on: May 7, 2021

2.9K
High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
13:31

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

Published on: December 22, 2015

15.9K

Area of Science:

  • Nuclear Medicine
  • Medical Imaging Physics
  • Radiation Detection and Measurement

Background:

  • Single Photon Emission Computed Tomography (SPECT) imaging faces challenges with collimator performance across diverse photon energies due to scatter and penetration.
  • Frequent collimator changes in clinical SPECT hinder throughput and increase operational risks.
  • Existing collimators often require specific tuning for different radio-tracers, limiting flexibility.

Purpose of the Study:

  • To design a novel parallel-hole collimator for CZT detectors that maintains consistent performance for low- to medium-energy gamma emissions.
  • To optimize collimator geometry (hole shape, length, width, source distance) for improved SPECT imaging.
  • To evaluate the proposed collimator's performance against commercial standards.

Main Methods:

  • Utilized Geant4 simulation toolkit to model and assess a parallel-hole collimator integrated with a CZT detector.
  • Investigated four variables: hole shape, length, radius/width, and source-to-collimator distance.
  • Evaluated scatter, penetration, sensitivity, and spatial resolution for 57Co, 99mTc, 123I, and 111In; conducted digital phantom studies.

Main Results:

  • An optimal square-hole collimator (23 mm length, 1.28 mm width, 0.32 mm septal thickness) was identified, maximizing total relative sensitivity (TRS).
  • The optimized collimator demonstrated superior performance in digital phantom studies, showing improved contrast, contrast-to-noise ratio, and recovery ratio.
  • Simulations indicated comparable or enhanced imaging performance versus commercial Low-Energy High-Resolution (LEHR) and Medium-Energy General Purpose (MEGP) collimators.

Conclusions:

  • The proposed energy-optimized collimator shows significant promise for CZT-based SPECT systems.
  • This design offers a versatile solution, reducing the need for frequent collimator exchanges.
  • The developed collimator provides a viable alternative to commercial options, potentially improving clinical SPECT efficiency and diagnostic accuracy.