Bulletin of the American Physical Society
64th Annual Meeting of the APS Division of Plasma Physics
Volume 67, Number 15
Monday–Friday, October 17–21, 2022; Spokane, Washington
Session GO06: ICF: Measurement and Diagnostic Techniques
9:30 AM–12:30 PM,
Tuesday, October 18, 2022
Room: Ballroom 111 C
Chair: Roberto Mancini, University of Nevada, Reno
Abstract: GO06.00012 : Effect of high order spectral phase shaping of ultra-intense laser pulses on X-ray generation*
11:42 AM–11:54 AM
Presenter:
Ghassan Zeraouli
(Colorado State University)
Authors:
Ghassan Zeraouli
(Colorado State University)
Derek A Mariscal
(Lawrence Livermore Natl Lab)
Paul C Campbell
(Lawrence Livermore National Laboratory)
Elizabeth S Grace
(Lawrence Livermore National Laboratory)
Graeme G Scott
(Lawrence Livermore National Laboratory)
Kelly K Swanson
(Lawrence Livermore National Laboratory)
Raspberry A Simpson
(Lawrence Livermore National Laboratory)
Blagoje Z Djordjevic
(Lawrence Livermore National Laboratory)
Ryan Nedbailo
(Colorado State University)
Jaebum Park
(Colorado State University)
Bryan Sullivan
(Colorado State University)
Reed C Hollinger
(Colorado State University)
Shoujun Wang
(Colorado State University)
Jorge J Rocca
(Colorado State University)
Tammy Ma
(Lawrence Livermore Natl Lab)
X-ray characterization was carried out using the ultra-compact x-ray spectrometer (UCXS), a high-repetition-rate-capable broadband X-ray diagnostic that utilizes Ross pair and step wedge filtration in combination with a scintillator and sCMOS camera to measure X-rays >3 keV [1]. Results will be shown from a high-repetition-rate (0.1 Hz) experimental campaign on the ALEPH laser at Colorado State University, where the group delay dispersion (GDD) and third order dispersion (TOD) were varied to change the delivered pulse shape. We will show the effect on X-ray generation (distribution temperature and flux), and discuss next steps for secondary source optimization.
*This work performed under the auspices of the (U.S.) Department of Energy (DOE) under Lasernet US Grant No. DE-SC0021246, Measurements Innovation SCW1720, by LLNL under Contract DE-AC52-07NA27344, and with funding support from the Laboratory Directed Research and Development Program under tracking code 21-ERD-015. The experiments were conducted at CSU’s ALEPH laser facility supported by LaserNetUS DE-SC0021246.
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