A double photon coincidence detection method for medical gamma-ray imaging

نویسندگان

چکیده

Abstract Cascade nuclides emit two or more gamma rays successively through an intermediate state. The coincidence detection of cascade provides several advantages in gamma-ray imaging. In this review article, three applications the double photon method are reviewed. Double-photon emission imaging with mechanical collimators and Compton double-photon can identify radioactive source positions their angular-resolving detectors, reduce crosstalk between nuclides. addition, a novel is proposed by taking event photopeak events. Although type cannot specify location, it be useful multi-nuclide

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Gamma-gamma Coincidence Overlap Coincidence Method for Measuring Gamma-gamma Coincidence of Na Radiation Safety

RADIATION SAFETY The radioactive sources used in this experiment are only a few microcuries in strength, and they are all sealed, so they actually pose no significant health hazard. However we will follow good safety procedure. Horseplay involving the sources is forbidden. While the sources are not dangerous, like any radioactive source they should be treated with respect and properly handled. ...

متن کامل

Gamma-ray Imaging for Explosives Detection

We describe a gamma-ray imaging camera (GIC) for active interrogation of explosives being developed by NASAIGSFC and NSWCICarderock. The GIC is based on the Three-dimensional Track Imager (3-DTI) technology developed at GSFC for gamma-ray astrophysics. The 3-DTI, a large volume time-projection chamber, provides accurate, -0.4 mm resolution, 3-D tracking of charged particles. The incident direct...

متن کامل

Formation interface detection using Gamma Ray log: A novel approach

There are two methods for identifying formation interface in oil wells: core analysis, which is a precise approach but costly and time consuming, and well logs analysis, which petrophysists perform, which is subjective and not completely reliable. In this paper, a novel coupled method was proposed to detect the formation interfaces using GR logs. Second approximation level (a2) of GR log gained...

متن کامل

Entangled-photon coincidence fluorescence imaging.

We describe fluorescence imaging using the second-order correlation of entangled photon pairs. The proposed method is based on the principle that one photon of the pair carries information on where the other photon has been absorbed and has produced fluorescence in a sample. Because fluorescent molecules serve as "detectors" breaking the entanglement, multiply-scattered fluorescence photons wit...

متن کامل

Comparisons of Multiple Photon Coincidence Imaging Techniques

We compare analytically techniques for multiplephoton coincidence imaging in terms of spatial resolution, detector efficiency (or simply efficiency), and system sensitivity for a spherical water phantom (or simply sensitivity). One analysis consists of comparing photon-photon coincidence single-photon-emission computerized tomography (PP-SPECT) with angularly unconstrained, electronically colli...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Bio-Algorithms and Med-Systems

سال: 2022

ISSN: ['1896-530X', '1895-9091']

DOI: https://doi.org/10.2478/bioal-2022-0080