Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8166988 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2018 | 8 Pages |
Abstract
We present results from a proof-of-principle experiment to optimize laser driven protons acceleration by directly feeding back its spectral information to a deformable mirror (DM) controlled by evolutionary algorithms (EAs). By irradiating a stable high-repetition rate tape driven target with ultra-intense pulses of intensities â¼1020 W/cm2, we optimize the maximum energy of the accelerated protons with a stability of less than â¼5% fluctuations near optimum value. Moreover, due to spatio-temporal development of the sheath field, modulations in the spectrum are also observed. Particularly, a prominent narrow peak is observed with a spread of â¼15% (FWHM) at low energy part of the spectrum. These results are helpful to develop high repetition rate optimization techniques required for laser-driven ion accelerators.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
M. Noaman-ul-Haq, T. Sokollik, H. Ahmed, J. Braenzel, L. Ehrentraut, M. Mirzaie, L.-L. Yu, Z.M. Sheng, L.M. Chen, M. Schnürer, J. Zhang,