Applied Radiation and Isotopes This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

Neural network predictions of ( α,n) reaction cross sections at 18.5±3 MeV using the Levenberg-Marquardt algorithm
Appl Radiat Isot. 2023 Nov 20;204:111115. doi: 10.1016/j.apradiso.2023.111115. Online ahead of print.ABSTRACTIn recent developments, artificial neural networks (ANNs) have demonstrated their capability to predict reaction cross-sections based on experimental data. Specifically, for predicting (α,n) reaction cross-sections, we meticulously fine-tuned the neural network's performance by optimizing its parameters through the Levenberg-Marquardt algorithm. The effectiveness of this approach is corroborated by notable correlation coefficients; an R-value of 0.90928 for overall correlation, 0.98194 for validation, 0.99981 for t...
Source: Applied Radiation and Isotopes - November 25, 2023 Category: Radiology Authors: Hasan Özdoğan Yi ğit Ali Üncü Mert Şekerci Abdullah Kaplan Source Type: research

Measurement of fast-neutron activation cross section of the 109 Ag(n,2n) 108m Ag reaction and its theoretical calculation of excitation function
Appl Radiat Isot. 2023 Nov 11;203:111111. doi: 10.1016/j.apradiso.2023.111111. Online ahead of print.ABSTRACTThe cross section values of the 109Ag(n,2n)108mAg reaction at four neutron energies 13.5, 14.1, 14.4 and 14.8 Me were measured relative to those of the monitor reaction 93Nb(n,2n)92mNb by using the activation technique and using off-line γ-ray spectrometry. Fast neutrons were produced by the T(d,n)4He reaction. The excitation function of this reaction in the neutron energies from the reaction threshold to 20 MeV was obtained based on the nuclear theoretical model program system TALYS-1.95 with the adjusted relevant...
Source: Applied Radiation and Isotopes - November 24, 2023 Category: Radiology Authors: Yueli Song Fengqun Zhou Yajuan Hao Xiaopeng Zhang Pengfei Ji Yong Li Source Type: research

Liquid scintillation efficiencies, gamma-ray emission intensities, and half-life for Gd-153
Appl Radiat Isot. 2023 Nov 9;203:111108. doi: 10.1016/j.apradiso.2023.111108. Online ahead of print.ABSTRACTGadolinium-153 was standardized for activity by live-timed anticoincidence counting and an ampoule was submitted to the international reference system (SIR). Absolute emission intensities for the main γ rays were determined with calibrated high-purity germanium (HPGe) and lithium-drifted silicon (Si(Li)) detectors. A revised decay scheme is indicated, with no probability of direct electron capture to the 153Eu ground state. Triple-to-double coincidence ratio (TDCR) efficiency curves indicate that the revised decay s...
Source: Applied Radiation and Isotopes - November 24, 2023 Category: Radiology Authors: Denis E Bergeron Jeffrey T Cessna Ryan P Fitzgerald Gulakhshan Hamad Lizbeth Laureano-P érez Leticia Pibida Brian E Zimmerman Source Type: research

Novel Sm 3+ doped YCa 4 O(BO 3 ) 3 phosphors: Structural and, low and room temperature luminescent insights
This study explores YCa4O(BO3)3 (YCOB) as a potential host material for phosphors, focusing on the luminescent properties of YCOB phosphors doped with Sm3+ ions. The successful integration of Sm3+ ions into the YCOB host lattice is confirmed through structural characterization using X-ray diffraction (XRD), Fourier-Transform Infrared Spectroscopy (FTIR), and Energy-Dispersive X-ray Spectroscopy (EDS). Photoluminescence (PL) studies reveal distinct emission spectra with Stark energy level splitting, indicating a cooperative effect between Y3+ and Sm3+ ions. Concentration quenching, mainly attributed to dipole-dipole (d-q) i...
Source: Applied Radiation and Isotopes - November 21, 2023 Category: Radiology Authors: G Souadi Nasser Amri Ümit H Kaynar M B Coban O Madkhali M Ayvacikli N Can Source Type: research

An overview: Radiotracers and nano-radiopharmaceuticals for diagnosis of Parkinson's disease
This article reviews targeted radiopharmaceuticals used in clinics and novel nanocarriers for research purposes of PD imaging.PMID:37989065 | DOI:10.1016/j.apradiso.2023.111110 (Source: Applied Radiation and Isotopes)
Source: Applied Radiation and Isotopes - November 21, 2023 Category: Radiology Authors: Nur Ozolmez Mine Silindir-Gunay Bilge Volkan-Salanci Source Type: research

Measurement and analysis of leakage neutron spectra from Lead slab samples with D-T neutrons
Appl Radiat Isot. 2023 Nov 14;203:111113. doi: 10.1016/j.apradiso.2023.111113. Online ahead of print.ABSTRACTThe leakage neutron spectra from three different sizes of Lead samples were measured by a TOF technique at 60° and 120°. The essential characteristic properties of the experimental measurement spectra can be reproduced well by MCNP code simulations with the ENDF/B-VIII.0, CENDL-3.2, JENDL-5.0, JEFF-3.3 and TENDL-2021 evaluated nuclear data libraries. The calculated results of JENDL-5.0 and JEFF-3.3 libraries agree better with the experimental data in the whole energy range. The results from ENDF/B-VIII.0 and CENDL...
Source: Applied Radiation and Isotopes - November 17, 2023 Category: Radiology Authors: R Han Z Chen Y Nie B Liu G Tian X Zhang F Shi H Sun Z Zhang Y Ding X Ruan J Ren S Zhang Source Type: research

Development of a novel low-pressure scintillation cell with ZnS(Ag)-coated clapboard for Rn-220 measurement
Appl Radiat Isot. 2023 Nov 8;203:111107. doi: 10.1016/j.apradiso.2023.111107. Online ahead of print.ABSTRACTThe high-precision measurement of Rn-220 is essential for assessing and preventing thoron radiological hazards. Prior research has revealed that employing a scintillation cell without a clapboard improves the detection efficiency for both Rn-222 and Rn-220 by reducing air pressure, and the Rn-220 calibration factor is established at an atmospheric pressure of 0.4. However, the decrease in air pressure leads to a corresponding reduction in Rn-220 concentrations within the scintillation cell, resulting in lower counts ...
Source: Applied Radiation and Isotopes - November 17, 2023 Category: Radiology Authors: Zhongkai Fan Tao Hu Xiangming Cai Ruomei Xie Haoxuan Li Fengdi Qin Shoukang Qiu Yanliang Tan Jian Shan Source Type: research

A new determination of the 68 Ga half-life and evaluation of literature data
Appl Radiat Isot. 2023 Nov 2;203:111103. doi: 10.1016/j.apradiso.2023.111103. Online ahead of print.ABSTRACTInconsistencies within the 68Ga half-life dataset have been repeatedly identified in nuclear decay data evaluations performed over the past decade. In this paper, a half-life has been determined using ionisation chambers measurements and HPGe gamma-ray spectrometry (T1/2 = 67.783(27) min). The current literature has been reviewed and possible causes of discrepancy have been identified, such as neglected contaminant effects, robustness of analysis, and underestimation of systematic effects. This could lead to a signif...
Source: Applied Radiation and Isotopes - November 17, 2023 Category: Radiology Authors: N C Ramirez S M Collins Source Type: research