Z-Machine Laser Triggering System Design and Safety Features *Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy’s National Nuclear Security Administration under contract DE-AC04-94AL85000. David E. Bliss Sandia National Laboratories LSO Conference, June 16 th , 2008 Albuquerque, NM
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Z-Machine Laser Triggering System Design and Safety Features *Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company,
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Z-Machine Laser Triggering System Design and
Safety Features
*Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy’s National Nuclear Security Administration under contract DE-AC04-94AL85000.
David E. Bliss
Sandia National
Laboratories
LSO Conference, June 16th, 2008 Albuquerque, NM
Acknowledgements
Tom Avila, Devon Dalton, Jean Paul Davis,Tom Downey, Keith Lechien, Jason Podsednik, Jimmy Potter, Mark Savage,Hans Seamen, Joe Woodworth, …
The Z-machine is a pulsed power driver that delivers a peak load current of ~26 MA
with an adjustable rise time from 100 to 400 ns.
Wire ArrayRadiation Load
measured
simulated0
5
10
15
20
25c
urr
en
t (M
A)
0 200 400 600
time (ns)
-200
-5
Material Dynamics Load
More fundamentally,The Z machine is a
Magnetic field driver, Capable of delivering fields in excess of 100 MGauss!
Z1311 Coverdale: Self Emission of aLarge Diameter Copper Single Array
Material: CopperArray Diameter 60 mm, 88 wires
Wire Ф: 11.09 um
Cross sectional view of the Z-machine highlights the 36 individual modules and
respective oil, water and vacuum sections.
Energy Storage
Section Pulse Forming
Section
Oil, 750,000 gal.
CenterVacuumSectionWater
450,000 gal.
Laser Triggered Gas Switch
108’
20’
The Laser Triggered Gas Switch is the last actively controlled pulsed
power component on the machine.
• Each of the 36 gas switches has its own trigger laser.
• A low jitter switch and laser are critical for low jitter x-ray output.