Use of projectional phase space data to infer a 4D particle distribution

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We consider beams which are described by a 4D transverse distribution f(x,y,x{prime},y{prime}), where x{prime} {triple_bond} p{sub x}/p{sub z} and z is the axial coordinate. A two-slit scanner is commonly employed to measure, over a sequence of shots, a 2D projection of such a beam's phase space, e.g., f(x,x{prime}). Another scanner might yield f(y,y{prime}) or, using crossed slits, f(x,y). A small set of such 2D scans does not uniquely specify f(x,y,x{prime},y{prime}). We have developed ''tomographic'' techniques to synthesize a ''reasonable'' set of particles in a 4D phase space having 2D densities consistent with the experimental data. These techniques are described in ... continued below

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Friedman, A.; Grote, D.P.; Celata, C.M. & Staples, J.W. May 20, 2002.

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We consider beams which are described by a 4D transverse distribution f(x,y,x{prime},y{prime}), where x{prime} {triple_bond} p{sub x}/p{sub z} and z is the axial coordinate. A two-slit scanner is commonly employed to measure, over a sequence of shots, a 2D projection of such a beam's phase space, e.g., f(x,x{prime}). Another scanner might yield f(y,y{prime}) or, using crossed slits, f(x,y). A small set of such 2D scans does not uniquely specify f(x,y,x{prime},y{prime}). We have developed ''tomographic'' techniques to synthesize a ''reasonable'' set of particles in a 4D phase space having 2D densities consistent with the experimental data. These techniques are described in a separate document [A. Friedman, et. al., submitted to Phys. Rev. ST-AB, 2002]. Here we briefly summarize one method and describe progress in validating it, using simulations of the High Current Experiment at Lawrence Berkeley National Laboratory.

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INIS; OSTI as DE00799663

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  • 14th International Symposium on Heavy Ion Inertial Fusion, Moscow (RU), 05/21/2002--05/31/2002

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  • Report No.: LBNL--51211
  • Report No.: UCRL-JC-148436
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 799663
  • Archival Resource Key: ark:/67531/metadc742457

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  • May 20, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • April 4, 2016, 3:52 p.m.

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Friedman, A.; Grote, D.P.; Celata, C.M. & Staples, J.W. Use of projectional phase space data to infer a 4D particle distribution, article, May 20, 2002; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc742457/: accessed August 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.