Excitation functions of (n,p) and (n,2n) reactions of tantalum, rhenium, and iridium in the neutron energy range up to 20 MeV

314-318The excitation functions for (n,p) and (n,2n) reactions up to 20 MeV on Tantalum, Rhenium, and Iridium have been calculated using the TALYS-1.9 nuclear reaction model code. Different level density models have been used to get a good agreement between the calculated and measured data. In the present work, we have carried out the TALYS-1.9 calculations to quantitatively understand the experimental data by optimizing input parameters for 181Ta(n,p)181Hf, 181Ta(n,2n)180Ta, 185Re(n,p)185mW, 185Re(n,2n)184Re,191Ir(n,p)191Os and 191Ir(n,2n)190Ir. Theoretical results have been compared with the experimental data (taken from the EXFOR database) up to 20 MeV. Also, the results have been compared with the ENDF/B-VIII.0 and TENDL-2015 evaluated data

Study of pre-equilibrium contributions in proton spectra of 59Co(n,xp) reaction using TALYS-1.9

In the present study we have calculated the proton spectra of 59Co(n,xp) using TALYS-1.9. TALYS uses all major reaction mechanisms like compound, pre-equilibrium and direct reactions. The contribution from compound nuclear reaction is calculated using optical model calculations. For pre-equilibrium contributions we have used two particle exciton model. The results from the present work suggests the presence of significant pre-equilibrium emission components in the 59Co(n,xp) system within the range of incident projectile energies from 37.5 to 62.7 MeV

Study of pre-equilibrium contributions in proton spectra of 59Co(n,xp) reaction using TALYS-1.9

423-426In the present study we have calculated the proton spectra of 59Co(n,xp) using TALYS-1.9. TALYS uses all major reaction mechanisms like compound, pre-equilibrium and direct reactions. The contribution from compound nuclear reaction is calculated using optical model calculations. For pre-equilibrium contributions we have used two particle exciton model. The results from the present work suggests the presence of significant pre-equilibrium emission components in the 59Co(n,xp) system within the range of incident projectile energies from 37.5 to 62.7 MeV

Excitation functions of (n,p) and (n,2n) reactions of tantalum, rhenium, and iridium in the neutron energy range up to 20 MeV

The excitation functions for (n,p) and (n,2n) reactions up to 20 MeV on Tantalum, Rhenium, and Iridium have been calculated using the TALYS-1.9 nuclear reaction model code. Different level density models have been used to get a good agreement between the calculated and measured data. In the present work, we have carried out the TALYS-1.9 calculations to quantitatively understand the experimental data by optimizing input parameters for 181Ta(n,p)181Hf, 181Ta(n,2n)180Ta, 185Re(n,p)185mW, 185Re(n,2n)184Re,191Ir(n,p)191Os and 191Ir(n,2n)190Ir. Theoretical results have been compared with the experimental data (taken from the EXFOR database) up to 20 MeV. Also, the results have been compared with the ENDF/B-VIII.0 and TENDL-2015 evaluated data

Measurement of alpha-induced reaction cross-sections on nat^{nat}Zn with detailed covariance analysis

The production cross-section of $^{68}$Ge, $^{69}$Ge, $^{65}$Zn and $^{67}$Ga radioisotopes from alpha-induced nuclear reaction with $^{nat}$Zn have been measured using stacked foil activation technique followed by the off-line $\gamma$-ray spectroscopy in the incident alpha energy range 14.47-37 MeV. In this study we have presented cross-sections for $^{nat}$Zn($\alpha$,x)$^{68}$Ge, $^{nat}$Zn($\alpha$,x)$^{69}$Ge, $^{nat}$Zn($\alpha$,x)$^{65}$Zn and $^{nat}$Zn($\alpha$,x)$^{67}$Ga reactions. The obtained nuclear reaction cross-sections are compared with previous experimental data available in the EXFOR data library and theoretical results, calculated using TALYS nuclear reaction code. We have also performed the detailed uncertainty analysis for these nuclear reactions and their respective covariance metrics are presented. Since $\alpha$-induced reactions are important in astrophysics, nuclear medicine, and improving the nuclear reaction codes so needful corrections related to the coincidence summing factor and the geometric factor have been considered during the data analysis in the present study.Comment: 10 pages, 9 figures. arXiv admin note: text overlap with arXiv:2201.0146

Scope of Artificial Intelligence in Screening and Diagnosis of Colorectal Cancer

Globally, colorectal cancer is the third most diagnosed malignancy. It causes significant mortality and morbidity, which can be reduced by early diagnosis with an effective screening test. Integrating artificial intelligence (AI) and computer-aided detection (CAD) with screening methods has shown promising colorectal cancer screening results. AI could provide a "second look" for endoscopists to decrease the rate of missed polyps during a colonoscopy. It can also improve detection and characterization of polyps by integration with colonoscopy and various advanced endoscopic modalities such as magnifying narrow-band imaging, endocytoscopy, confocal endomicroscopy, laser-induced fluorescence spectroscopy, and magnifying chromoendoscopy. This descriptive review discusses various AI and CAD applications in colorectal cancer screening, polyp detection, and characterization