AI Article Synopsis
- Gamma camera sources were created through a process that involved depositing nickel onto a copper sphere followed by cerium deposition.
- The deposition process was conducted in a specific solution and at controlled pH levels to achieve over 95% efficiency for cerium deposition.
- Tests using autoradiography, scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS) confirmed the uniformity and effectiveness of cerium deposition on the substrate.
Article Abstract
Ce sources were fabricated for quality assurance of gamma cameras. The fabrication process consisted of electro-deposition of Ni on a Cu sphere in 0.01 N HSO containing 30 mg/mL HBO and 50 μg of NiSO·7HO at pH 2-3 followed by deposition of Ce on it. > 95% deposition of Ce on substrate could be achieved at pH 5. Source core was loaded in custom-made Al holder. Autoradiography confirmed uniform activity distribution. SEM and EDS analyses confirmed deposition of Cerium on substrate.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.apradiso.2019.108865 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Novel photopeak-independent correction method for internal activity calculation of 99mTc: a simulation study.
Radiat Prot Dosimetry
December 2024
Facultad de Medicina, Universidad Autónoma del Estado de México, Paseo Tollocan s/n esquina Jesús Carranza, Col. Moderna de la Cruz, Toluca 50180, Estado de México, Mexico.
This paper presents a new method for correcting the contribution of scattered radiation to the measurement of 99mTc internal activity in nuclear medicine patients using gamma cameras. So, this study aims to derive scattering correction factors by Monte Carlo simulation for anterior and posterior count rates (${I}_{\mathrm{A}}$ and ${I}_{\mathrm{P}}$) in the conjugate view method, enabling more precise estimation of activity A(t) compared to traditional trapezoidal and triangular approximations. The new approach eliminates the need to use photopeak for determining the fraction of scattered photons.
View Article and Find Full Text PDFRecent Progress in Myocardial Perfusion Imaging Techniques.
Nucl Med Mol Imaging
December 2024
Department of Nuclear Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
Article Synopsis
- Nuclear cardiology has advanced rapidly, particularly in myocardial perfusion imaging (MPI) since the 1970s, which is vital for assessing and managing coronary artery disease.
- Recent innovations include the development of gamma cameras with cadmium zinc telluride (CZT) systems and enhancements in software, as well as ongoing studies into new radiopharmaceuticals for positron emission tomography (PET)-MPI.
- Despite these advancements, challenges like high equipment and examination costs, along with limited accessibility, pose significant barriers to the practical use of these technologies in nuclear medicine.
Development of patient-specific pre-treatment verification procedure for FLASH proton therapy based on time resolved film dosimetry.
Med Phys
November 2024
HollandPTC, Delft, The Netherlands.
Background: Pre-clinical studies demonstrate that delivering a high dose at a high dose rate result in less toxicity while maintaining tumor control, known as the FLASH effect. In proton therapy, clinical trials have started using 250 MeV transmission beams and more trials are foreseen. A novel aspect of FLASH treatments, compared to conventional radiotherapy, is the importance of dose rate next to dose and geometry.
View Article and Find Full Text PDFThyroid scintigraphy of healthy cats using small-field-of-view gamma cameras.
Front Vet Sci
October 2024
Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea.
Introduction: Small-field-of-view (SFOV) gamma cameras can offer higher sensitivities than conventional gamma cameras. However, there are currently no reports on the efficacy and safety of thyroid scintigraphy using SFOV gamma cameras in veterinary medicine. Therefore, we aimed to evaluate the efficacy and radiation safety of an SFOV gamma camera for feline thyroid scintigraphy.
View Article and Find Full Text PDFDevelopment of a GAGG gamma camera for the imaging of prompt gammas during proton beam irradiation.
Phys Med
November 2024
Faculty of Science and Engineering, Waseda University, Japan.
Prompt gammas imaging (PGI) is a promising method for observing a beam's shape and estimating the range of the beam from outside a subject. However 2-dimensional images of prompt gammas (PGs) during irradiation of protons were still difficult to measure. To achieve PGI, we developed a new gamma camera and imaged PGs while irradiating a phantom by proton beams.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!