AVS 63rd International Symposium & Exhibition
    Biomaterial Interfaces Wednesday Sessions
       Session BI+MI-WeM

Paper BI+MI-WeM13
SrI2(Eu2+)Gamma Camera for SPECT Imaging in Medical Applications

Wednesday, November 9, 2016, 12:00 pm, Room 101A

Session: Biosensors and Diagnostics
Presenter: LaNell Williams, Fisk University
Authors: L.W. Williams, Fisk University
M. Groza, Fisk University
E. Rowe, Fisk University
J. Butler, Fisk University
T. Peterson, Vanderbilt University
A. Burger, Fisk University
Correspondent: Click to Email
The detection of gamma rays for nuclear imaging has become increasingly important in designing non-invasive imaging tools for biological research and modeling. Although imaging techniques such as computed tomography (CT) and Positron Emission Tomography (PET) have been previously used, and improved spatial resolution and sensitivity continue to be an issue. Thus, improvements in these detection devices are needed to create better images for more accurate modeling in research [Cressey, 2011]. Scintillators such as Cesium Iodide (CsI), and Sodium Iodide (NaI) have been used for many imaging techniques for their ease of growth, energy resolution, and overall effectiveness as a gamma ray detectors. In more recent studies, Strontium Iodide doped with Europium (SrI2(Eu2+) has shown to be a promising scintillator compared to NaI and CsI. Because of’s SrI2(Eu2+) improved energy resolution (~2.7%), fast decay time (~1.2 µs) and light yield (110,000 photons/MeV), it is an ideal replacement for technologies that have used previously been made with NaI and CsI. [Cherepy, 2008]. In addition, SrI2(Eu2+) also has an emission centered around 420 nm making it an ideal scintillator to be used with silicon photomultipliers that provide lower energy consumption than the standard photomultiplier tube. The improved energy resolution of SrI2(Eu2+) in a gamma camera will result in an promising detector for nuclear imaging.