Publications

Bell, Kate S.; Coverdale, Christine A.; Ampleford, David A.; Bailey, James E.; Loisel, Guillaume P.; Harper-Slaboszewicz, V.H.; Schwarz, Jens S.; Christner, Edyta C.; Turner, Colin L.; McPherson, Leroy A.; Bourdon, Christopher B.; Kernaghan, M.D.; Sullivan, Michael A.; Kirtley, Christopher K.; Cuneo, M.E.

Abstract not provided.

Review of Scientific Instruments

McPherson, Leroy A.; Ampleford, David A.; Coverdale, Christine A.; Argo, J.W.; Owen, Albert C.; Jaramillo, Deanna M.

A new high photon energy (hν > 15 keV) time-integrated pinhole camera (TIPC) has been developed as a diagnostic instrument at the Z facility. This camera employs five pinholes in a linear array for recording five images at once onto an image plate detector. Each pinhole may be independently filtered to yield five different spectral responses. The pinhole array is fabricated from a 1-cm thick tungsten block and is available with either straight pinholes or conical pinholes. Each pinhole within the array block is 250 μm in diameter. The five pinholes are splayed with respect to each other such that they point to the same location in space, and hence present the same view of the radiation source at the Z facility. The fielding distance from the radiation source is 66 cm and the nominal image magnification is 0.374. Initial experimental results from TIPC are shown to illustrate the performance of the camera.

Bell, Kate S.; Coverdale, Christine A.; Ampleford, David A.; Bailey, James E.; Loisel, Guillaume P.; Harper-Slaboszewicz, V.H.; Schwarz, Jens S.; Christner, Edyta C.; Turner, Colin L.; McPherson, Leroy A.; Bourdon, Christopher B.; Kernaghan, M.D.; Sullivan, Michael A.; Kirtley, Christopher K.; Cuneo, M.E.

Abstract not provided.

Jones, Brent M.; Hahn, Kelly D.; Ruiz, Carlos L.; Chandler, Gordon A.; Fehl, David L.; Lash, Joel S.; Knapp, Patrick K.; Gomez, Matthew R.; Hansen, Stephanie B.; Harding, Eric H.; McPherson, Leroy A.; Nelson, Alan J.; Rochau, G.A.; Schmit, Paul S.; Sefkow, Adam B.; Sinars, Daniel S.; Torres, Jose A.; Bur, James A.; Cooper, Gary W.; Bonura, Michael A.; Long, Joel L.; Styron, Jedediah D.; Buckles, Rob B.; Garza, Irene G.; Moy, Kenneth J.; Davis, Brent D.; Tinsley, Jim T.; Tiangco, Rod T.; Miller, Kirk M.; Mckenna, Ian M.

Abstract not provided.

Ampleford, David A.; Hansen, Stephanie B.; Jennings, Christopher A.; Webb, Timothy J.; Harper-Slaboszewicz, V.H.; Loisel, Guillaume P.; Flanagan, Timothy M.; Bell, Kate S.; Jones, Brent M.; Rochau, G.A.; Chittenden, Jeremy P.; Sherlock, Mark S.; Appelbe, Brian A.; Giuliani, John G.; Ouart, Nicholas O.; Seely, John S.; McPherson, Leroy A.

We report on experiments demonstrating the transition from thermally-dominated K-shell line emission to non-thermal, hot-electron-driven inner-shell emission for z pinch plasmas on the Z machine. While x-ray yields from thermal K-shell emission decrease rapidly with increasing atomic number Z, we find that non-thermal emission persists with favorable Z scaling, dominating over thermal emission for Z=42 and higher (hn ≥ 17keV). Initial experiments with Mo (Z=42) and Ag (Z=47) have produced kJ-level emission in the 17-keV and 22-keV Kα lines respectively. We will discuss the electron beam properties that could excite these non - thermal lines. We also report on experiments that have attempted to control non - thermal K - shell line emission by modifying the wire array or load hardware setup.

McPherson, Leroy A.; Bourdon, Christopher B.; Rochau, G.A.

Abstract not provided.

Coverdale, Christine A.; Bell, Kate S.; Harper-Slaboszewicz, V.H.; McPherson, Leroy A.; Ampleford, David A.; Flanagan, Timothy M.; Loisel, Guillaume P.; Bourdon, Christopher B.; Kernaghan, M.D.; Sullivan, Michael A.; Serrano, Jason D.; McCourt, Andrew L.; Cuneo, M.E.

Abstract not provided.

Bell, Kate S.; Coverdale, Christine A.; Ampleford, David A.; Hansen, Stephanie B.; McPherson, Leroy A.; Harper-Slaboszewicz, V.H.; Bourdon, Christopher B.; Bailey, James E.; Loisel, Guillaume P.; Christner, Edyta C.; Turner, Colin L.; Kernaghan, M.D.; Sullivan, Michael A.; Cuneo, M.E.

Abstract not provided.

Coverdale, Christine A.; Bell, Kate S.; Harper-Slaboszewicz, V.H.; McPherson, Leroy A.; Ampleford, David A.; Flanagan, Timothy M.; Bourdon, Christopher B.; Kernaghan, M.D.; Sullivan, Michael A.; Serrano, Jason D.; McCourt, Andrew L.; Cuneo, M.E.

Abstract not provided.

Jones, Brent M.; Ruiz, Carlos L.; Chandler, Gordon A.; Hahn, Kelly D.; Fehl, David L.; Nelson, Alan J.; Torres, Jose A.; Coverdale, Christine A.; Lash, Joel S.; Knapp, Patrick K.; Gomez, Matthew R.; Hansen, Stephanie B.; Harding, Eric H.; McPherson, Leroy A.; Rochau, G.A.; Schmit, Paul S.; Sefkow, Adam B.; Sinars, Daniel S.; Cooper, Gary W.

Abstract not provided.

Jones, Brent M.; Hahn, Kelly D.; Ruiz, Carlos L.; Chandler, Gordon A.; Fehl, David L.; Lash, Joel S.; Knapp, Patrick K.; McPherson, Leroy A.; Nelson, Alan J.; Rochau, G.A.; Schmit, Paul S.; Sefkow, Adam B.; Sinars, Daniel S.; Torres, Jose A.; Cooper, Gary W.; Bonura, Michael A.; Long, Joel L.; Styron, Jedediah D.; Davis, Brent D.; Buckles, Rob B.; Moy, Ken M.; Miller, Kirk M.; Mckenna, Ian M.

Abstract not provided.

Ampleford, David A.; Hansen, Stephanie B.; Coverdale, Christine A.; Knapp, Patrick K.; Bell, Kate S.; Harper-Slaboszewicz, V.H.; McPherson, Leroy A.; Jones, Brent M.; Rochau, G.A.; Cuneo, M.E.

Abstract not provided.

Bell, Kate S.; Coverdale, Christine A.; Ampleford, David A.; McPherson, Leroy A.; Harper-Slaboszewicz, V.H.; Kernaghan, M.D.; Bourdon, Christopher B.; Jones, Brent M.; Jones, Michael J.; Cuneo, M.E.; Austin, Kevin N.

Abstract not provided.

Hahn, Kelly D.; Schmit, Paul S.; Sefkow, Adam B.; Sinars, Daniel S.; Long, Joel L.; Ruiz, Carlos L.; Chandler, Gordon A.; Jones, Brent M.; Lash, Joel S.; Knapp, Patrick K.; McPherson, Leroy A.; Rochau, G.A.

Abstract not provided.

Bell, Kate S.; Cuneo, M.E.; Lake, Patrick W.; Austin, Kevin N.; Coverdale, Christine A.; McPherson, Leroy A.; Harper-Slaboszewicz, V.H.; Ampleford, David A.; Jones, Brent M.; Kernaghan, M.D.; Bourdon, Christopher B.; Jones, Michael J.

Abstract not provided.

Proposed for publication in 5th Special Issue of the IEEE Transactions on Plasma Science Z-Pinch Plasmas.

Cuneo, M.E.; Mazarakis, Michael G.; Lamppa, Derek C.; Kaye, Ronald J.; Nakhleh, Charles N.; Bailey, James E.; Hansen, Stephanie B.; McBride, Ryan D.; Herrmann, Mark H.; Lopez, A.; Peterson, Kyle J.; Ampleford, David A.; Jones, Michael J.; Savage, Mark E.; Jennings, Christopher A.; Martin, Matthew; Slutz, Stephen A.; Lemke, Raymond W.; Christenson, Peggy J.; Sweeney, Mary A.; Jones, Brent M.; Yu, Edmund Y.; McPherson, Leroy A.; Harding, Eric H.; Knapp, Patrick K.; Gomez, Matthew R.; Awe, Thomas J.; Stygar, William A.; Leeper, Ramon J.; Ruiz, Carlos L.; Chandler, Gordon A.; Mckenney, John M.; Owen, Albert C.; McKee, George R.; Matzen, M.K.; Leifeste, Gordon T.; Atherton, B.W.; Vesey, Roger A.; Smith, Ian C.; Geissel, Matthias G.; Rambo, Patrick K.; Sinars, Daniel S.; Sefkow, Adam B.; Rovang, Dean C.; Rochau, G.A.

Abstract not provided.

Bennett, Guy R.; Campbell, David V.; Claus, Liam D.; Foresi, James S.; Johnson, Drew J.; Jones, Michael J.; Keller, Keith L.; Leifeste, Gordon T.; McPherson, Leroy A.; Mulville, Thomas D.; Neely, Kelly A.; Sinars, Daniel S.; Herrmann, Mark H.; Rambo, Patrick K.; Rovang, Dean C.; Ruggles, Larry R.; Simpson, Walter W.; Speas, Christopher S.; Wenger, D.F.; Smith, Ian C.; Cuneo, M.E.; Adams, Richard G.; Atherton, B.W.; Barnard, Wilson J.; Beutler, David E.; Burr, Robert A.

Abstract not provided.

Cameron, Stewart M.; Zutavern, Fred J.; Luk, Ting S.; McPherson, Leroy A.

Terahertz radiation from optically-induced plasmas on metal, semiconductor, and dielectric surfaces is compared to electron-hole plasma radiation from GaAs and Ge. Electro-optic sampling and electric-field probes measure radiated field waveforms and distributions to 0.350 THz.