Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Photoluminescence: Fluorescence and Phosphorescence

Photoluminescence: Fluorescence and Phosphorescence

Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...

Imaging Studies II: Positron Emission Tomography and Scintigraphy

Imaging Studies II: Positron Emission Tomography and Scintigraphy

Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET

You might also read

Related Articles

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

Sort by

Same author

LncRNA FOXD2-AS1 accelerates the progression of cervical cancer via downregulating CDX1.

European review for medical and pharmacological sciences·2019

Same author

A phase II study of V-BEAM as conditioning regimen before second auto-SCT for multiple myeloma.

Bone marrow transplantation·2014

Same author

Neuroprotective effects of LBP on brain ischemic reperfusion neurodegeneration.

European review for medical and pharmacological sciences·2013

Same author

Proficiency of drug susceptibility testing for Mycobacterium tuberculosis in Taiwan, 2007-2011.

The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease·2012

Same author

Most-probable-number rapid viability PCR method to detect viable spores of Bacillus anthracis in swab samples.

Journal of microbiological methods·2010

Same author

Rapid, high-throughput, culture-based PCR methods to analyze samples for viable spores of Bacillus anthracis and its surrogates.

Journal of microbiological methods·2009

Search research articles

Related Experiment Video

Updated: Jul 18, 2026

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

Semiconductor quantum dot scintillation under gamma-ray irradiation.

S E Létant¹, T-F Wang

¹Chemistry and Materials Science Directorate, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California, 94550, USA. letant1@llnl.gov

|December 14, 2006

Summary

Semiconductor quantum dots show improved scintillation for gamma rays. This quantum dot-glass nanocomposite offers a factor 2 better energy resolution than standard sodium iodide scintillators.

More Related Videos

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Published on: May 31, 2018

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

Related Experiment Videos

Last Updated: Jul 18, 2026

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Published on: May 31, 2018

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

Area of Science:

Materials Science
Nuclear Physics
Photonics

Background:

Semiconductor quantum dots (QDs) have shown potential for converting alpha radiation into visible light.
Further investigation into QD scintillation properties under different radiation types is warranted.

Purpose of the Study:

To investigate the scintillation performance of quantum dots under gamma irradiation.
To compare the energy resolution of a quantum dot-glass nanocomposite with a traditional sodium iodide scintillator.

Main Methods:

Fabrication of a quantum dot-glass nanocomposite scintillator.
Irradiation of the nanocomposite and sodium iodide scintillator with gamma rays from Americium-241.
Experimental measurement and theoretical modeling of energy resolution for the 59 keV gamma line.

Main Results:

Quantum dots exhibit scintillation properties when exposed to gamma radiation.
The quantum dot-glass nanocomposite demonstrated a factor 2 improvement in energy resolution compared to sodium iodide.
Theoretical models of energy loss and photon transport explain the observed performance enhancement.

Conclusions:

Quantum dots are effective scintillators for gamma radiation.
Quantum dot-based scintillators offer superior energy resolution over conventional materials like sodium iodide.
This advancement holds promise for improved radiation detection technologies.