Timing and Fiducial Capability
The NIF integrated timing system is a distributed system consisting of a leader clock with a number of follower clocks located in different areas of the facility. It is based on a standard communications frequency of 155.52 MHz. This system provides precision electrical triggers with <20 ps rms stability and <100 ps overall drift due to environmental conditions. Precision triggers are available for all diagnostics with independent delay control via computer control.
The fiducial system provides critical timing reference markers in the form of optical pulses throughout the NIF facility. The optical fiducial pulses are generated within the MOR and are distributed via fiber optic to the various areas of the facility. Optical fiducial pulses will be provided via fiber optic at 1.05 µm and 0.53 µm wavelengths (1ω and 2ω). In addition, electrical fiducial pulses derived from the optical fiducial pulse will be provided.
Details on the fiducial system may be obtained from Component Specifications for Fiducial Generation and Distribution Subsystem7 or NIF Fiducial System Architecture.8
7Component Specifications for Fiducial Generation and Distribution Subsystem, NIF-5002565.
8NIF Fiducial System Architecture, NIF-5003450.
