The 1 cm 3 CZT detector provides gamma spectra with significantly improved FWHM resolution as compared to NaI scintillators. This greatly improves the identification capability for many important isotopes (such as Thorium and Radium daughters in the background) with closely spaced gamma lines.

Why CZT? In an Anger camera with a Sodium Iodide () scintillator, gamma emitted photons are first converted into visible light photons and then into electric signal using photomultiplier tubes. This cascade of conversions, each with its non-ideal transfer function and noise, significantly reduces the overall detection efficiency.

This paper presents a review of the literature concerning the clinical application of modern semiconductor (CZT) gamma cameras in the radioinuclide diagnosis of coronary artery disease. It contains information on the diagnostic efficacy of ...

NaI(Tl) Incident gamma rays deposit their energy in the scintillator, creating light photons. The light photons are converted into electrical pulses by a PMT array. Anger logic is then used to determine the origin of the light photons from the scintillator crystal.

We are developing a novel type of gamma-ray imager based on position-sensitive CZT detectors. We designed and prototyped a detecting plane that allows us to measure the energies of gamma rays and the locations of their interaction points within the detector.

Recent advances in gamma camera technology has seen the introduction of cadmium-zinc-telluride (CZT) digital SPECT-CT systems for nuclear medicine imaging. This new technology offers improved energy resolution, spatial resolution and system sensitivity over conventional sodium-iodide (NaI) scintillation systems.

A CZT gamma camera that provides an array of discrete CZT pixels and associated front-end electronics including ASIC has been designed by CEA/LETI in an exclusive joint development with...

The CZT model is tuned to reproduce experimentally measured energy spectra of a hand-held gamma camera system for multiple radionuclides (99 m Tc, 123 I and 177 Lu) and parallel-hole collimators (MEGP, LEHR) as well as an uncollimated system.

2018年5月1日 · Integration of pixelated CZT detectors with advanced ASICs and readout electronics improves system performance. Our objective was to build both a small FOV gamma camera and a general-purpose human SPECT gamma camera and to evaluate their cost and performance for clinical applications.

CZT is a room temperature semiconductor that directly converts x-ray or gamma-ray photons into electrons. CZT is a unique semiconductor compared with Silicon and Germanium detectors, in that CZT operates at room temperature and can process >10 million photons / second /mm².