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Status of the Neutralized Drift Compression Experiment (NDCX-II) (open access)

Status of the Neutralized Drift Compression Experiment (NDCX-II)

The Neutralized Drift Compression Experiment (NDCX-II) is an 11 M$ induction accelerator project currently in construction at Lawrence Berkeley National Laboratory for warm dense matter (WDM) experiments investigating the interaction of ion beams with matter at elevated temperature and pressure. The machine consists of a lithium injector, induction accelerator cells, diagnostic cells, a neutralized drift compression line, a final focus solenoid, and a target chamber. The induction cells and some of the pulsed power systems have been reused from the decommissioned Advanced Test Accelerator at Lawrence Livermore National Laboratory after refurbishment and modification. The machine relies on a sequence of acceleration waveforms to longitudinally compress the initial ion pulse from 600 ns to less than 1 ns in {approx} 12 m. Radial confinement of the beam is achieved with 2.5 T pulsed solenoids. In the initial hardware configuration, 50 nC of Li{sup +} will be accelerated to 1.25 MeV and allowed to drift-compress to a peak current of {approx}40 A. The project started in the summer of 2009. Construction of the accelerator will be completed in the fall of 2011 and will provide a worldwide unique opportunity for ion-driven warm dense matter experiments as well as research related to novel …
Date: April 21, 2011
Creator: Waldron, W. L. & Kwan, J. W.
System: The UNT Digital Library
Atmospheric Stability Affects Wind Turbine Power Collection (open access)

Atmospheric Stability Affects Wind Turbine Power Collection

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Date: April 21, 2011
Creator: Wharton, S & Lundquist, J K
System: The UNT Digital Library