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The Design and Implementation of the Integrated Timing System to be Used in the National Ignition Facility

The Design and Implementation of the Integrated Timing System to be Used in the National Ignition Facility
Author:
Publisher:
Total Pages:
Release: 1999
Genre:
ISBN:

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The National Ignition Facility, or NIF, currently under construction at the Lawrence Livermore National Laboratory will contain the world's most powerful laser. By the year 2003 the NIF laser will be a research tool allowing scientists a glimpse into plasma interactions that are equivalent to those found in the center of the sun. Every eight hours the NIF will generate 1.8 MJ of 351-nm light carried by 192 pulsed laser beams and focus it onto a pea-sized target. This will result in a fusion reaction between two isotopes of hydrogen, creating for a few hundred picoseconds stellar conditions. Synchronizing the beams and diagnosing the fusion reaction requires generation and delivery of over 1000 precisely timed triggers to a multitude of systems. The NIF Integrated Timing System (ITS) was developed to provide reliable, accurately timed triggers that allow each client system to operate independently during periods of shot preparation and maintenance, yet be coordinated to a few tens of picoseconds during the experiment. The ITS applies technologies developed for fiber communications and Two-Way Time Transfer, and integrates them by way of a computer communications network to achieve distributed control, dynamically configurable coordination and independent among timing channels, and integrated self-diagnostics.


National Ignition Facility Sub-system Design Requirements Integrated Timing System SSDR 1.5.3

National Ignition Facility Sub-system Design Requirements Integrated Timing System SSDR 1.5.3
Author:
Publisher:
Total Pages: 19
Release: 1996
Genre:
ISBN:

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This System Design Requirement document establishes the performance, design, development, and test requirements for the Integrated Timing System, WBS 1.5.3 which is part of the NIF Integrated Computer Control System (ICCS). The Integrated Timing System provides all temporally-critical hardware triggers to components and equipment in other NIF systems.


The NIF Integrated Timimg System-Design and Performance

The NIF Integrated Timimg System-Design and Performance
Author:
Publisher:
Total Pages: 6
Release: 2001
Genre:
ISBN:

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The National Ignition Facility (NIF) will contain the world's most powerful laser. NIF requires more than 1500 precisely timed trigger pulses to control the timing of laser and diagnostic equipment. The Integrated Timing System applies new concepts to generate and deliver triggers at preprogrammed times to equipment throughout the laser and target areas of the facility. Trigger pulses during the last 2 seconds of a shot cycle are required to have a jitter of less than 20 ps (rms) and a wander of less than 100 ps (max). Also, Timing System allows simultaneous, independent use by multiple clients by partitioning the system hardware into subsets that are controlled via independent software keys. The hardware necessary to implement the Integrated Timing System is commercially available.


Timing Optimization Through Clock Skew Scheduling

Timing Optimization Through Clock Skew Scheduling
Author: Ivan S. Kourtev
Publisher: Springer Science & Business Media
Total Pages: 205
Release: 2012-12-06
Genre: Technology & Engineering
ISBN: 1461544114

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History of the Book The last three decades have witnessed an explosive development in integrated circuit fabrication technologies. The complexities of cur rent CMOS circuits are reaching beyond the 100 nanometer feature size and multi-hundred million transistors per integrated circuit. To fully exploit this technological potential, circuit designers use sophisticated Computer-Aided Design (CAD) tools. While supporting the talents of innumerable microelectronics engineers, these CAD tools have become the enabling factor responsible for the successful design and implemen tation of thousands of high performance, large scale integrated circuits. This research monograph originated from a body of doctoral disserta tion research completed by the first author at the University of Rochester from 1994 to 1999 while under the supervision of Prof. Eby G. Friedman. This research focuses on issues in the design of the clock distribution net work in large scale, high performance digital synchronous circuits and particularly, on algorithms for non-zero clock skew scheduling. During the development of this research, it has become clear that incorporating timing issues into the successful integrated circuit design process is of fundamental importance, particularly in that advanced theoretical de velopments in this area have been slow to reach the designers' desktops.


Energy and Water Development Appropriations for 2007

Energy and Water Development Appropriations for 2007
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development
Publisher:
Total Pages: 1616
Release: 2006
Genre: Federal aid to energy development
ISBN:

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Inertial Confinement Fusion

Inertial Confinement Fusion
Author:
Publisher:
Total Pages: 734
Release: 1997
Genre: Inertial confinement fusion
ISBN:

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Energy and Water Development Appropriations for 2006

Energy and Water Development Appropriations for 2006
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development
Publisher:
Total Pages: 1302
Release: 2005
Genre: Federal aid to energy development
ISBN:

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An Assessment of the Prospects for Inertial Fusion Energy

An Assessment of the Prospects for Inertial Fusion Energy
Author: National Research Council
Publisher: National Academies Press
Total Pages: 247
Release: 2013-07-05
Genre: Science
ISBN: 0309272246

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The potential for using fusion energy to produce commercial electric power was first explored in the 1950s. Harnessing fusion energy offers the prospect of a nearly carbon-free energy source with a virtually unlimited supply of fuel. Unlike nuclear fission plants, appropriately designed fusion power plants would not produce the large amounts of high-level nuclear waste that requires long-term disposal. Due to these prospects, many nations have initiated research and development (R&D) programs aimed at developing fusion as an energy source. Two R&D approaches are being explored: magnetic fusion energy (MFE) and inertial fusion energy (IFE). An Assessment of the Prospects for Inertial Fusion Energy describes and assesses the current status of IFE research in the United States; compares the various technical approaches to IFE; and identifies the scientific and engineering challenges associated with developing inertial confinement fusion (ICF) in particular as an energy source. It also provides guidance on an R&D roadmap at the conceptual level for a national program focusing on the design and construction of an inertial fusion energy demonstration plant.