Applying Machine‐Learning Methods to Laser Acceleration of Protons: Lessons Learned From Synthetic Data
- Department of Physics The Ohio State University Columbus Ohio USA
- Department of Physics Marietta College Marietta Ohio USA
- Department of Mathematics California State University Channel Islands Camarillo California USA
- Department of Engineering Physics Air Force Institute of Technology Wright‐Patterson AFB Ohio USA
ABSTRACT In this study, we consider three different machine‐learning methods—a three‐hidden‐layer neural network, support vector regression, and Gaussian process regression—and compare how well they can learn from a synthetic data set for proton acceleration in the Target Normal Sheath Acceleration regime. The synthetic data set was generated from a previously published theoretical model by Fuchs et al. 2005 that we modified. Once trained, these machine‐learning methods can assist with efforts to maximize the peak proton energy, or with the more general problem of configuring the laser system to produce a proton energy spectrum with desired characteristics. In our study, we focus on both the accuracy of the machine‐learning methods and the performance on one GPU including memory consumption. Although it is arguably the least sophisticated machine‐learning model we considered, support vector regression performed very well in our tests.
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- 89243021SSC000084
- OSTI ID:
- 2478569
- Journal Information:
- Contributions to Plasma Physics, Journal Name: Contributions to Plasma Physics Journal Issue: 3 Vol. 65; ISSN 0863-1042
- Publisher:
- Wiley Blackwell (John Wiley & Sons)Copyright Statement
- Country of Publication:
- Germany
- Language:
- English
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