PPPS 2019

Session

9.3 Pulsed Power Diagnostics

O9F

28 Jun 2019, 10:00

DoubleTree at the Entrance to Universal Orlando

Conveners

9.3 Pulsed Power Diagnostics

• George Laity (Sandia National Laboratories)

1229. Spatially and temporally resolved measurements of load current delivery on the Z Pulsed Power Facility using the Z Line VISAR diagnostic

Clayton Myers (Sandia National Laboratories)

28/06/2019, 10:00

9.3 Pulsed Power Diagnostics

Invited

Measuring the current delivered to a pulsed-power load is key to understanding its expected behavior. On the Z Pulsed Power Facility, the load current is most accurately measured using velocimetry techniques such as VISAR (Velocity Interferometer System for Any Reflector) and PDV (Photonic Doppler Velocimetry). These diagnostics measure the expansion of a metallic plate or ‘flyer’ that is...

657. Exploring Signatures of Inner MITL Plasma Formation using Dedicated Experimental Platforms at the Z Pulsed Power Facility

George Laity (Sandia National Laboratories)

28/06/2019, 10:30

9.3 Pulsed Power Diagnostics

Oral

Large pulsed power accelerators, such as the Z Pulsed Power Facility at Sandia National Laboratories, routinely deliver large current pulses to a variety of high energy density physics experiments including compact x-ray sources, inertial confinement fusion targets, materials compression experiments, and more. The variety of experimental requirements for these studies typically span a large...

658. Upgrade of the Spallation Neutron Source Injection and Extraction Kicker Pulse Verification Systems

Ben Morris (ORNL), Robert Saethre (Oak Ridge National Lab)

28/06/2019, 10:45

9.3 Pulsed Power Diagnostics

Oral

The Spallation Neutron Source (SNS) injection system transports a chopped 1ms H- ion beam from the Linac into the accumulation ring where two electrons are stripped from each ion, resulting in a proton beam propagating in the ring. The injection kickers use a 1400A current source with a 1 ms discharge time to bump particles into the accumulator ring and transport waste beam to the injection...

826. CYGNUS PERFORMANCE ON SEVEN SUBCRITICAL EXPERIMENTS

John Smith (Los Alamos National Laboratory)

28/06/2019, 11:00

9.3 Pulsed Power Diagnostics

Oral

The Cygnus Dual Beam Radiographic Facility includes two identical radiographic sources - Cygnus 1 and Cygnus 2. Cygnus is the radiography source used in Subcritical Experiments (SCEs) at the Nevada National Security Site (NNSS). The machine specifications are: Electric 2.25 MV, 60 kA, 60 ns; Radiation 4 Rad, 1 mm, 50 ns; Operation single shot, 2-shots/day. Cygnus has operated at the NNSS since...

617. CYGNUS SYSTEM TIMING

Eugene Ormond (Sandia National Laboratories)

28/06/2019, 11:15

9.3 Pulsed Power Diagnostics

Oral

The Cygnus Dual Beam Radiographic Facility consists of two identical radiographic sources each with a dose rating of 4-rad at 1 m, and a 1-mm diameter spot size. The development of the rod pinch diode was responsible for the ability to meet these criteria¹. The rod pinch diode in a Cygnus machine uses a 0.75-mm diameter, tapered tip, tungsten anode rod extended through a 9-mm diameter,...

945. Flash lamps current monitoring using optically insulated FPGA technology under harsh pulsed power environment

Mr Jean Marie Larbaig (Univ Pau & Pays Adour/ E2s Uppa, SIAME EPHT)

28/06/2019, 11:30

9.3 Pulsed Power Diagnostics

Either

Within the frame of the Common Research Laboratory initiated in 2017 between French Atomic Energy and Alternative Energies Commission (CEA) and Pau University (UPPA), FPGA based developments have been initiated in order to evaluate the potential benefits of such technology regarding the pulsed power applications domain.
Thus, some investigations are currently undergoing on the monitoring...