Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Sarah Cousineau"'
Publikováno v:
Data in Brief, Vol 51, Iss , Pp 109658- (2023)
This paper presents real operational data collected from the power systems of the Spallation Neutron Source facility, which provides the most intense neutron beam in the world. The authors have used a radio-frequency test facility (RFTF) and simulate
Externí odkaz:
https://doaj.org/article/d7af4aad23d341ddb0d7d7392cb59766
Autor:
Yasir Alanazi, Malachi Schram, Kishansingh Rajput, Steven Goldenberg, Lasitha Vidyaratne, Chris Pappas, Majdi I. Radaideh, Dan Lu, Pradeep Ramuhalli, Sarah Cousineau
Publikováno v:
Machine Learning with Applications, Vol 13, Iss , Pp 100484- (2023)
We present a multi-module framework based on Conditional Variational Autoencoder (CVAE) to detect anomalies in the power signals coming from multiple High Voltage Converter Modulators (HVCMs). We condition the model with the specific modulator type t
Externí odkaz:
https://doaj.org/article/249bc77939d846c5abae8ea3e340255d
Autor:
Steven Goldenberg, Malachi Schram, Kishansingh Rajput, Thomas Britton, Chris Pappas, Dan Lu, Jared Walden, Majdi I Radaideh, Sarah Cousineau, Sudarshan Harave
Publikováno v:
Machine Learning: Science and Technology, Vol 5, Iss 4, p 045009 (2024)
Accurate uncertainty estimations are essential for producing reliable machine learning models, especially in safety-critical applications such as accelerator systems. Gaussian process models are generally regarded as the gold standard for this task;
Externí odkaz:
https://doaj.org/article/1612fda88dd3469a9ae4adcf8f62f9f5
Publikováno v:
International Journal of Prognostics and Health Management, Vol 14, Iss 1 (2023)
Early fault detection and fault prognosis are crucial to ensure efficient and safe operations of complex engineering systems such as the Spallation Neutron Source (SNS) and its power electronics (high voltage converter modulators). Following an advan
Externí odkaz:
https://doaj.org/article/492e86b0f5a14ac2b779dd7f5f3a91af
Publikováno v:
Data in Brief, Vol 43, Iss , Pp 108473- (2022)
This article describes real time series datasets collected from the high voltage converter modulators (HVCM) of the Spallation Neutron Source facility. HVCMs are used to power the linear accelerator klystrons, which in turn produce the high-power rad
Externí odkaz:
https://doaj.org/article/3e92780a606547f38ee636afee63d898
Publikováno v:
Results in Physics, Vol 36, Iss , Pp 105414- (2022)
The reliability of the mercury spallation target is mission-critical for the neutron science program of the spallation neutron source at the Oak Ridge National Laboratory. We present an inverse uncertainty quantification (UQ) study using the Bayesian
Externí odkaz:
https://doaj.org/article/b64bcbf592fc42758fe175301e4f9461
Autor:
Alexander Aleksandrov, Sarah Cousineau, Timofey Gorlov, Yun Liu, Abdurahim Oguz, Andrei Shishlo, Alexander Zhukov, Martin Kay
Publikováno v:
Physical Review Accelerators and Beams, Vol 26, Iss 4, p 043501 (2023)
Charge exchange injection is the standard mechanism used to accumulate short, intense pulses of proton beams from an H^{-} injector into a synchrotron. Historically, this process has relied on injection foils to remove the two electrons from the H^{-
Externí odkaz:
https://doaj.org/article/449d68b8da1b46d083437009e1176c37
Autor:
Jonathan C. Wong, Alexander Aleksandrov, Sarah Cousineau, Timofey Gorlov, Yun Liu, Abdurahim Rakhman, Andrei Shishlo
Publikováno v:
Physical Review Accelerators and Beams, Vol 24, Iss 3, p 032801 (2021)
Laser-assisted charge exchange (LACE) is a novel scheme for injecting H^{-} ions into proton rings. Lorentz stripping of H^{-} ions into bare protons in magnetic dipoles is enabled by laser excitation that reduces the electron binding energy. We show
Externí odkaz:
https://doaj.org/article/482feb900c0146678aee5789353dac62
Autor:
Timofey Gorlov, Alexander Aleksandrov, Sarah Cousineau, Yun Liu, Abdurahim Rakhman, Andrei Shishlo
Publikováno v:
Physical Review Accelerators and Beams, Vol 22, Iss 12, p 121601 (2019)
A new scheme with sequential resonant excitation for laser assisted charge exchange injection of H^{−} beams is proposed. In contrast with the one step excitation scheme, the proposed scheme requires significantly less laser power for high efficien
Externí odkaz:
https://doaj.org/article/380f2e38168f43a3816698bceb096beb
Autor:
Sarah Cousineau, Abdurahim Rakhman, Martin Kay, Alexander Aleksandrov, Viatcheslav Danilov, Timofey Gorlov, Yun Liu, Cary Long, Alexander Menshov, Michael Plum, Andrei Shishlo, Andrew Webster, David Johnson
Publikováno v:
Physical Review Accelerators and Beams, Vol 20, Iss 12, p 120402 (2017)
Laser-assisted stripping is a novel approach to H^{-} charge exchange that overcomes long-standing limitations associated with the traditional, foil-based method of producing high-intensity, time-structured beams of protons. This paper reports on the
Externí odkaz:
https://doaj.org/article/6a2e70efdb304558b87676e3a97c279c