Projects Sharing Researchers
- Nanocrystalline Optically-based Neutron Irradiation History Sensor
- Lanthanide-Halide Core/Shell Scintillator Materials
- Multifunctional Nanoparticles for Enhanced Drug Delivery to the Lung
- Compact Biosensor for Neurological Diseases and Pain
- Rotation-Sensitive Semiconductor Ring Laser Device Using the Nonlinear Sagnac Effect
- Nathan Withers
- Jose Vargas
- Marek Osinski
- Gennady Smolyakov
- Brian Akins
- Antonio Rivera
- John Bryan Plumley
|Project Title||Thermal Neutron Detectors Based on Gadolinium-Containing Nanoscintillators|
Researchers at the University of New Mexico have developed a way to detect thermal neutrons based on gadolinium-containing nanoscintillators.
An element with by far the highest thermal neutron capture cross section among all stable isotopes is presented.
|Tags||biosensing, cancer treatment, Radiation Detection|
|Posted Date||Mar 13, 2012|
|John Bryan Plumley|
Colloidal nanocrystals (NCs) have attracted tremendous interest over the last few years for a wide range of biomedical, biochemical sensing, and optoelectronic applications. So far, however, their potential has largely eluded the nuclear detection community. In contrast to wide exploitation of quantum confinement effects in optoelectronic and electronic devices, the physics and technology of inorganic scintillators is still primarily limited to bulk materials. Yet, compared to currently used large-size single crystals or scintillating particles of bulk micrometer size, nanocrystals offer the prospect of significantly improved performance.
Large single-crystal inorganic scintillators are very fragile, expensive to grow, and limited in the size of high-quality crystals. Furthermore, scintillating semiconductors of micron size are limited by the low solubility in organic and polymeric matrices as well as the opaqueness that is apparent in inorganic matrices. There have been few published preliminary studies of radiation response of nanocomposites based on colloidal nanocrystals; however, scintillation outputs were low in these cases.
Researchers at the University of New Mexico have developed a way to detect thermal neutrons based on gadolinium-containing nanoscintillators. An element with by far the highest thermal neutron capture cross section among all stable isotopes is presented.
- Result in higher efficiency of the scintillators
- Allow for production of large robust nanocomposites with a variety of shapes and sizes
- Nanocrystals will have better solubility in organic and polymeric matrices.
- Nanocrystals will cause much less scattering when loaded into inorganic sol-gel or porous host materials.
- Wide range of biomedical applications
- Detection of nuclear radiation/neutron detectors
- Biochemical sensing
- Radiation-based cancer treatments
|9,116,246 Issued Patent||None||Download|
|Patent Number||Issue Date||Type||Country of Filing|
|9,116,246||Aug 25, 2015||Utility||United States|