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We have constructed a composite image of the fault systems of the M 6.7 San Fernando (1971) and Northridge (1994), Califor-nia, earthquakes, using industry reflection and oil test well data in the upper few kilometers of the crust, relocated aftershocks in the seismogenic crust, and LARSE II (Los Angeles Region Seismic Experiment , Phase II) reflection data(More)
New shear-wave splitting measurements at permanent broadband seismic stations in the south-central United States reveal the orientation and degree of polarization of mantle fabrics, and provide constraints on models for the formation of these fabrics. For stations on the stable North American craton, correspondence between observed polarization direction of(More)
As the startup Low-Energy Beam Transport (LEBT) for the Spallation Neutron Source (SNS) project is undergoing commissioning aimed at transporting a 35-mA H-beam, a new LEBT layout has been developed that is designed to transport a beam current of 65 mA, consistent with the revised nominal SNS beam-power goal of 2 MW. The SNS LEBT employs two electrostatic(More)
Geospatial databases often contain erroneous measurements. For some such databases such as gravity databases, the known methods of detecting erroneous measurements – based on regression analysis – do not work well. As a result, to clean such databases, experts use manual methods which are very time-consuming. In this paper, we propose a (natural) "(More)
The 2.5 MeV injector for the Spallation Neutron Source is currently under construction at LBNL, which includes a 2.5 MeV high power, high duty factor four vane RFQ made of four modules. Transverse mode stabilization is obtained through a series of cross coupling rods. Each of the four RFQ modules is equipped with twenty fixed tuners, two active power and(More)
— A phase modulated (PM) microwave photonic link (MPL) with linearity improvement is presented. The link demodulates the PM using a phase discriminator based on a dynamically tunable, integrated, sixth-order optical lattice filter in planar lightwave circuit (PLC) technology. The linearity of the demodulation process is optimized by using electrical(More)
Berkeley Lab is engaged in the construction of the front end of the Spallation Neutron Source (SNS) [1] being built in Oak Ridge, Tennessee. Parts of the front end are the ion source and the Low Energy Beam Transport (LEBT) section. The startup ion source, enabling SNS to achieve 1-MW average beam power, has to provide 35 mA of H-beam current at 6% duty(More)
The new L-band 7-feed-array at the 100-m telescope in Effelsberg will be used to perform an unbiased fully sampled HI survey of the entire northern hemisphere observing the galactic and extragalactic sky using simultaneously two different backends. The integration time per position will be 10 min towards the SDSS area and 2 min for the remaining sky,(More)
ACKNOWLEDGEMENTS This thesis would not have been possible without my adviser, Dr. Kurt J. Marfurt for giving me all the support, guidance and freedom to explore an ocean of knowledge without getting lost. From him I started to truly understand that learning is a lifetime process. When I complained about the new generations of students not adequately(More)
We report our experimental results for linear analog optical links that use phase or frequency modulation and optical discrimination. The discriminators are based on two architectures: a cascaded MZI FIR lattice filter and a ring assisted MZI (RAMZI) IIR filter. For both types of discriminators, we demonstrate > 6 dB improvement in the link's third-order(More)
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