ICALEPCS2023 - List of Authors (Hocquet, S.)

Paper	Title	Page
THPDP012	Evolution of the Laser Megajoule Timing System	1312
	T. Somerlinck CEA, LE BARP cedex, France S. Hocquet, D. Monnier-Bourdin Greenfield Technology, Massy, France
	The Laser MegaJoule (LMJ), a 176-beam laser facility developed by CEA, is located at the CEA CESTA site near Bordeaux. The LMJ facility is part of the French Simulation Program, which combines improvement of theoretical models and data used in various fields of physics, high performance numerical simulations and experimental validation. It is designed to deliver about 1.4 MJ of energy on targets, for high energy density physics experiments, including fusion experiments. With 120 operational beams at the end of 2023, operational capabilities are gradually increasing until the full completion of the LMJ facility by 2025. To verify the synchronization of the precise delay generators, used on each bundle, a new timing diagnostic has been designed to observe the 1w and 3w fiducial signals. Meanwhile, due to electronic obsolescence, a new modified prototype precise of a delay generator, with ’new and old channels’, has been tested and compared. In this paper, a review of the LMJ synchronization report is given with a description of the first timing diagnostic as well as an overview of the LMJ delay generator obsolescence update. It also presents some leads for a future timing system. LMJ: Laser MegaJoule CEA: Commissariat à l’Energie Atomique et aux Energies Alternatives
	Poster THPDP012 [3.535 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-THPDP012
About •	Received ※ 10 October 2023 — Revised ※ 14 November 2023 — Accepted ※ 19 December 2023 — Issued ※ 21 December 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Evolution of the Laser Megajoule Timing System

1312

T. Somerlinck
CEA, LE BARP cedex, France
S. Hocquet, D. Monnier-Bourdin
Greenfield Technology, Massy, France

The Laser MegaJoule (LMJ), a 176-beam laser facility developed by CEA, is located at the CEA CESTA site near Bordeaux. The LMJ facility is part of the French Simulation Program, which combines improvement of theoretical models and data used in various fields of physics, high performance numerical simulations and experimental validation. It is designed to deliver about 1.4 MJ of energy on targets, for high energy density physics experiments, including fusion experiments. With 120 operational beams at the end of 2023, operational capabilities are gradually increasing until the full completion of the LMJ facility by 2025. To verify the synchronization of the precise delay generators, used on each bundle, a new timing diagnostic has been designed to observe the 1w and 3w fiducial signals. Meanwhile, due to electronic obsolescence, a new modified prototype precise of a delay generator, with ’new and old channels’, has been tested and compared. In this paper, a review of the LMJ synchronization report is given with a description of the first timing diagnostic as well as an overview of the LMJ delay generator obsolescence update. It also presents some leads for a future timing system.
LMJ: Laser MegaJoule
CEA: Commissariat à l’Energie Atomique et aux Energies Alternatives

Poster THPDP012 [3.535 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-THPDP012

About •

Received ※ 10 October 2023 — Revised ※ 14 November 2023 — Accepted ※ 19 December 2023 — Issued ※ 21 December 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)