Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Ashish V. Avachat"'
Autor:
Ashish V. Avachat, Kholod H. Mahmoud, Anthony G. Leja, Jiajie J. Xu, Mark A. Anastasio, Mayandi Sivaguru, Angela Di Fulvio
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-9 (2024)
Abstract The objective of this work is to showcase the ortho-positronium lifetime as a probe for soft-tissue characterization. We employed positron annihilation lifetime spectroscopy to experimentally measure the three components of the positron anni
Externí odkaz:
https://doaj.org/article/93fce35329e9468aadb68dea050657c0
Publikováno v:
Nuclear Engineering and Technology, Vol 53, Iss 12, Pp 4072-4079 (2021)
This article presents a study on the state-of-the-art methods for automated radioactive material detection and identification, using gamma-ray spectra and modern machine learning methods. The recent developments inspired this in deep learning algorit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4774abff06aa47af78cc82be3341fb92
https://doi.org/10.1016/j.net.2021.06.020
https://doi.org/10.1016/j.net.2021.06.020
Autor:
Ashish V. Avachat, Anthony G Leja, Kholod H. Mahmoud, Mark A. Anastasio, Mayandi Sivaguru, Angela Di Fulvio
Can positron annihilation lifetime spectroscopy (PALS) be employed to discriminate different types of soft tissues? This work reports our experimental measurements of the three components of positron annihilation lifetime spectra for three types of b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::309ca978baec5064ea441910cfb85c1a
https://doi.org/10.21203/rs.3.rs-1657111/v1
https://doi.org/10.21203/rs.3.rs-1657111/v1
Publikováno v:
IEEE Transactions on Electron Devices. 66:1525-1532
For real-time computed tomography (CT), a temporal resolution lower than 30 ms is required, which cannot be delivered by conventional CT architectures with a rotation gantry. Stationary CT architecture can achieve a temporal resolution lower than 30
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::febb5cef4a3033d8004a5178656aca65
https://doi.org/10.1109/ted.2019.2891352
https://doi.org/10.1109/ted.2019.2891352
Autor:
Nicholas Woolstenhulme, Hyoung-Koo Lee, Seth Kilby, Joseph T. Graham, Bryant Kanies, Zhongmin Jin, Ashish V. Avachat
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 320:37-45
A numerical radiation transport methodology for predicting gamma emission tomographs was developed utilizing the deterministic fuel burn-up software, ORIGEN, in the SCALE code package as a source definition input for Monte Carlo N Particle Transport
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de8561d3dcf0a0420a937365360f3d58
https://doi.org/10.1007/s10967-019-06457-1
https://doi.org/10.1007/s10967-019-06457-1
Autor:
Zhongmin Jin, Hyoung-Koo Lee, Bryant Kanies, Ashish V. Avachat, Nicolas E. Woolstenhulme, Joseph T. Graham, Seth Kilby
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 324:445-446
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c229ea78ef305838a71dd632c58cae99
https://doi.org/10.1007/s10967-020-07064-1
https://doi.org/10.1007/s10967-020-07064-1
Autor:
Nicolas E. Woolstenhulme, Zhongmin Jin, Ashish V. Avachat, Hyoung K. Lee, D. Devin Imholte, Joseph T. Graham, Seth Kilby, Jack Fletcher
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 1001:165236
A semi-analytic variance reduction technique developed for collimated gamma emission tomography problems was compared to classic Monte Carlo variance reduction techniques within the Monte Carlo N Particle Transport (MCNP) code. In the semi-analytic t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ad0ab629da1aafaee59657b3f4416bc
https://doi.org/10.1016/j.nima.2021.165236
https://doi.org/10.1016/j.nima.2021.165236
Autor:
Hyoung-Koo Lee, Carlos Henry Castano Giraldo, David Pommerenke, Wesley Tucker, Ashish V. Avachat
Publikováno v:
Radiation Research. 193:497
In this article, we offer a look inside our prototype compact X-ray tube by reporting on our findings when we experimentally studied it. We studied the prototype experimentally to characterize its primary components, i.e., carbon nanotube (CNT)-based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66afea132fa1f8c80189a3eed8d2cb1e
https://doi.org/10.1667/rr15499.1
https://doi.org/10.1667/rr15499.1
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 296:799-806
A new method for non-destructive analysis has been developed using a combined neutron/X-ray imaging system at the Missouri Science & Technology Reactor (MSTR). The interactions of neutrons and X-ray photons with matter produce differing characteristi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6b34148be0c797bcb2c3e8d5b9a39fb
https://doi.org/10.1007/s10967-012-2062-x
https://doi.org/10.1007/s10967-012-2062-x
Autor:
Hyoung-Koo Lee, Edwin J. Grant, Carlos H. Castano, Ashish V. Avachat, Ralu Divan, Anirudha V. Sumant, C. M. Posada, Daniel Rosenmann, Liliana Stan
Publikováno v:
SPIE Proceedings.
A novel cold cathode field emission array (FEA) X-ray source based on ultra-nanocrystalline diamond (UNCD) field emitters is being constructed as an alternative for detection of obscured objects and material. Depending on the geometry of the given si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92c0d46f6a0f0a8a6cc3f084fedfa68c
https://doi.org/10.1117/12.2015846
https://doi.org/10.1117/12.2015846