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Quasi-spherical direct drive fusion simulations for the Z machine and future accelerators.

Description: We explored the potential of Quasi-Spherical Direct Drive (QSDD) to reduce the cost and risk of a future fusion driver for Inertial Confinement Fusion (ICF) and to produce megajoule thermonuclear yield on the renovated Z Machine with a pulse shortening Magnetically Insulated Current Amplifier (MICA). Analytic relationships for constant implosion velocity and constant pusher stability have been derived and show that the required current scales as the implosion time. Therefore, a MICA is necessar… more
Date: November 1, 2007
Creator: VanDevender, J. Pace; McDaniel, Dillon Heirman; Roderick, Norman Frederick & Nash, Thomas J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Tevatron AC dipole system

Description: The AC dipole is an oscillating dipole magnet which can induce large amplitude oscillations without the emittance growth and decoherence. These properties make it a good tool to measure optics of a hadron synchrotron. The vertical AC dipole for the Tevatron is powered by an inexpensive high power audio amplifier since its operating frequency is approximately 20 kHz. The magnet is incorporated into a parallel resonant system to maximize the current. The use of a vertical pinger magnet which has … more
Date: June 1, 2007
Creator: Miyamoto, R.; Kopp, S. E.; Jansson, A. & Syphers, M. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Multiplexed Sensor for Synthesis Gas Compsition and Temperature

Description: The overall goal of this project has been to develop a highly sensitive, multiplexed TDL-based sensor for CO{sub 2}, CO, H{sub 2}O (and temperature), CH{sub 4}, H{sub 2}S, and NH{sub 3}. Such a sensor was designed with so-called 'plug-and-play' characteristics to accommodate additional sensors, and provided in situ path-integrated measurements indicative of average concentrations at speeds suitable for direct gasifier control. The project developed the sensor and culminated in a real-world test… more
Date: October 1, 2007
Creator: Buckley, Steven; Gharavi, Reza & Leon, Marco
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Upgrade of the A0 photo injector laser system for NML accelerator test facility at Fermilab

Description: The current Fermilab A0 Photoinjector laser system includes a seed laser, a flashlamp pumped multipass amplifier cavity, a flashlamp pumped 2-pass amplifier system followed by an Infra-Red (IR) to Ultra-Violet (UV) conversion stage. However the current system can only deliver up to 800 pulses due to the low efficiency of Nd:Glass used inside multi-pass cavity. In this paper we will report the effort to develop a new multi pass cavity based on Nd:YLF crystal end-pumped by diode laser. We will al… more
Date: June 1, 2007
Creator: Ruan, J.; Edwards, H. & Santucci, J. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A 96 channel receiver for the ILCTA LLRF system at Fermilab

Description: The present configuration of an ILC main LINAC RF station has 26 nine cell cavities driven from one klystron. With the addition of waveguide power coupler monitors, 96 RF signals will be down-converted and processed. A down-converter chassis is being developed that contains 12 eight channel analog modules and a single upconverter module. This chassis will first be deployed for testing a cryomodule composed of eight cavities located at New Muon Laboratory (NML) - Fermilab. Critical parts of the … more
Date: June 1, 2007
Creator: Mavric, Uros; Chase, Brian; Branlard, Julien; Cullerton, Ed & Klepec, Dan
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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