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Title: Topics on the growth of RT and turbulence with modulated wires and spectroscopic dopants.

Abstract

No abstract prepared.

Authors:
;  [1];  [1]; ;  [2];  [1]; ;  [1];  [1];  [2];  [3];  [1];  [1]; ;  [2];  [2];  [1];  [2];  [1]; more »;  [2]; ;  [2]; ; ;  [1];  [1] « less
  1. (University of Nevada, Reno)
  2. (Imperial College)
  3. (Ktech Corp.)
Publication Date:
Research Org.:
Sandia National Laboratories
Sponsoring Org.:
USDOE
OSTI Identifier:
953726
Report Number(s):
SAND2006-2853C
TRN: US201004%%538
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the 6th International Wire Array Workshop held May 1-4, 2006 in Scottsdale, AZ.
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; GROWTH; TURBULENCE; WIRES; LINEAR Z PINCH DEVICES

Citation Formats

Robinson, Allen Conrad, Fedin, Dmitry, Kantsyrev, Victor Leonidovich, Oliver, Bryan Velten, Lebedev, Sergey V., Yilmaz, Fatih, Coverdale, Christine Anne, Osborne, Glenn C., Ouart, Nicholas D., Bott, S. C., LePell, Paul David, Safronova, Alla S., Shrestha, I., Ampleford, David J., Rapley, J., Palmer, J. B. A., Sotnikov, Vladimir Isaakovich, Bland, Simon Nicholas, Ivanov, Vladimir V., Jones, Brent Manley, Chittenden, Jeremy Paul, Garasi, Christopher Joseph, Hall, Gareth Neville, Mehlhorn, Thomas Alan, Deeney, Christopher, Pokala, S., and Nalajala, V. Topics on the growth of RT and turbulence with modulated wires and spectroscopic dopants.. United States: N. p., 2006. Web.
Robinson, Allen Conrad, Fedin, Dmitry, Kantsyrev, Victor Leonidovich, Oliver, Bryan Velten, Lebedev, Sergey V., Yilmaz, Fatih, Coverdale, Christine Anne, Osborne, Glenn C., Ouart, Nicholas D., Bott, S. C., LePell, Paul David, Safronova, Alla S., Shrestha, I., Ampleford, David J., Rapley, J., Palmer, J. B. A., Sotnikov, Vladimir Isaakovich, Bland, Simon Nicholas, Ivanov, Vladimir V., Jones, Brent Manley, Chittenden, Jeremy Paul, Garasi, Christopher Joseph, Hall, Gareth Neville, Mehlhorn, Thomas Alan, Deeney, Christopher, Pokala, S., & Nalajala, V. Topics on the growth of RT and turbulence with modulated wires and spectroscopic dopants.. United States.
Robinson, Allen Conrad, Fedin, Dmitry, Kantsyrev, Victor Leonidovich, Oliver, Bryan Velten, Lebedev, Sergey V., Yilmaz, Fatih, Coverdale, Christine Anne, Osborne, Glenn C., Ouart, Nicholas D., Bott, S. C., LePell, Paul David, Safronova, Alla S., Shrestha, I., Ampleford, David J., Rapley, J., Palmer, J. B. A., Sotnikov, Vladimir Isaakovich, Bland, Simon Nicholas, Ivanov, Vladimir V., Jones, Brent Manley, Chittenden, Jeremy Paul, Garasi, Christopher Joseph, Hall, Gareth Neville, Mehlhorn, Thomas Alan, Deeney, Christopher, Pokala, S., and Nalajala, V. Mon . "Topics on the growth of RT and turbulence with modulated wires and spectroscopic dopants.". United States. doi:.
@article{osti_953726,
title = {Topics on the growth of RT and turbulence with modulated wires and spectroscopic dopants.},
author = {Robinson, Allen Conrad and Fedin, Dmitry and Kantsyrev, Victor Leonidovich and Oliver, Bryan Velten and Lebedev, Sergey V. and Yilmaz, Fatih and Coverdale, Christine Anne and Osborne, Glenn C. and Ouart, Nicholas D. and Bott, S. C. and LePell, Paul David and Safronova, Alla S. and Shrestha, I. and Ampleford, David J. and Rapley, J. and Palmer, J. B. A. and Sotnikov, Vladimir Isaakovich and Bland, Simon Nicholas and Ivanov, Vladimir V. and Jones, Brent Manley and Chittenden, Jeremy Paul and Garasi, Christopher Joseph and Hall, Gareth Neville and Mehlhorn, Thomas Alan and Deeney, Christopher and Pokala, S. and Nalajala, V.},
abstractNote = {No abstract prepared.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon May 01 00:00:00 EDT 2006},
month = {Mon May 01 00:00:00 EDT 2006}
}

Conference:
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  • Purpose: To compare three-dimensional conformal proton radiotherapy (3DCPT), intensity-modulated photon radiotherapy (IMRT), and 3D conformal photon radiotherapy (3DCRT) to predict the optimal RT technique for retroperitoneal sarcomas. Methods and Materials: 3DCRT, IMRT, and 3DCPT plans were created for treating eight patients with retroperitoneal or intra-abdominal sarcomas. The clinical target volume (CTV) included the gross tumor plus a 2-cm margin, limited by bone and intact fascial planes. For photon plans, the planning target volume (PTV) included a uniform expansion of 5 mm. For the proton plans, the PTV was nonuniform and beam-specific. The prescription dose was 50.4 Gy/Cobalt gray equivalent CGE.more » Plans were normalized so that >95% of the CTV received 100% of the dose. Results: The CTV was covered adequately by all techniques. The median conformity index was 0.69 for 3DCPT, 0.75 for IMRT, and 0.51 for 3DCRT. The median inhomogeneity coefficient was 0.062 for 3DCPT, 0.066 for IMRT, and 0.073 for 3DCRT. The bowel median volume receiving 15 Gy (V15) was 16.4% for 3DCPT, 52.2% for IMRT, and 66.1% for 3DCRT. The bowel median V45 was 6.3% for 3DCPT, 4.7% for IMRT, and 15.6% for 3DCRT. The median ipsilateral mean kidney dose was 22.5 CGE for 3DCPT, 34.1 Gy for IMRT, and 37.8 Gy for 3DCRT. The median contralateral mean kidney dose was 0 CGE for 3DCPT, 6.4 Gy for IMRT, and 11 Gy for 3DCRT. The median contralateral kidney V5 was 0% for 3DCPT, 49.9% for IMRT, and 99.7% for 3DCRT. Regardless of technique, the median mean liver dose was <30 Gy, and the median cord V50 was 0%. The median integral dose was 126 J for 3DCPT, 400 J for IMRT, and 432 J for 3DCRT. Conclusions: IMRT and 3DCPT result in plans that are more conformal and homogenous than 3DCRT. Based on Quantitative Analysis of Normal Tissue Effects in Clinic benchmarks, the dosimetric advantage of proton therapy may be less gastrointestinal and genitourinary toxicity.« less
  • Many papers on DIAL for remote sensing have been devoted to the averaging properties of speckle noise from diffuse-target returns; i.e., how many (N) return pulses can be averaged before the I/N reduction in signal variance expected from uncorrelated noise fails. An apparent limit of about 100 pulses or fewer has been the most important factor in determining the accuracy of DIAL measurements using diffusely-scattering targets in the field. The relevant literature is briefly reviewed, and various explanations for the apparent limit are summarized. Recent speckle experiments at LLNL`s Site 300 may suggest that the limit of {approximately}100 pulses ismore » not fundamental. The speckle experiments very clearly show that the limit on signal averaging in this data was the result of long-term ({approximately}1 minute) drifts in the signal returns rather than of any more subtle statistical properties. The long-term drifts are completely removed to the useful limits of the data sets by working with the log-ratio of adjacent pulses. This procedure is analogous (but not identical) to processing the log-ratios of the powers at different wavelengths in a multi-line DIAL system. We think the Site 300 data therefore suggests that as long as the laser system is constructed to ensure that any long-term drifts are identical among the transmitted wavelengths, the log-ratio of the individual returns will provide a data set that does usefully average over a large number of pulses.« less