• Energy Research

48th EPS Conference on Plasma Physics

Contains reports on three research projects. ; National Science Foundation under Grant G-9330 ; Air Force Cambridge Research Center under Contract AF-19(604)-5992 ; United States Air Force (WADD Contract AF33(616)-3984) ; Contract AF19(604)-4551 with Air Force Cambridge Research Center ; Aeronautical Accessories Laboratory, Wright Air Development Division, Wright-Patterson Air Force Base, Ohio (Air Force Contract AF33(616)-3984, Project 8149, Task No. 61098) ; Atomic Energy Commission under Contract AT(30-1)-1842

Contains research objectives and reports on three research projects. ; Contract AF19(604)-4551 with Air Force Cambridge Research Center ; Atomic Energy Commission under Contract AT(30-1)-1842 ; Air Force Cambridge Research Center under Contract AF19(604)-5992 ; National Science Foundation under Grant G-9330 ; WADD Contract AF33(616)-7624 with Flight Accessories Laboratory, Wright-Patterson Air Force Base, Ohio

Energetic deposition using filtered cathodic arc plasma is known to lead to well adherent and dense films. Interface mixing, subplantation depth, texture, and stress of the growing film are often studied as a function of the kinetic energy of condensing ions. Ions have also potential energy contributing to atomic scale heating, secondary electron emission and potential sputtering, thereby affecting all film properties. A table is presented showing kinetic and potential energies of ions in cathodic arc plasmas. These energies are greater than the binding energy, surface binding energy, and activation energy of surface diffusion. The role of potential energy on film growth is not limited to the cathodic arc plasma deposition process.

"May 1965." ; "TID-4500, 43rd ed." ; "Controlled thermonuclear processes." ; Includes bibliographical references (p. 16). ; U.S. Atomic Energy Commission Contract ; Mode of access: Internet.

Thesis (Master's)--University of Washington, 2015 ; A new experiment at the University of Washington called Mochi is intended to simulate astrophysical jets in the laboratory and investigate their stability, with particular interest in conservation of canonical helicity. As a new experiment, Mochi’s plasma parameters are relatively unknown. This thesis describes the development of a gridded energy analyzer (GEA), the ultimate goal of which is to provide initial measurements of Mochi’s ion energy distribution. The concept of the Mochi.GEA is to start with the simplest possible design and make necessary improvements based on observed performance. The initial design suffered from a space charge limitation issue, which was mitigated using a pinhole aperture. Secondary electron emission was also identified as a major issue and addressed with a secondary electron suppressor. The analyzer has successfully measured the electron energy distribution but not yet successfully measured the ion energy distribution. However, the Mochi.GEA design is easily modifiable, and further development may arrive at a working design.

Work performed by Carbide and Carbon Chemicals Corporation at Oakridge National Laboratory, Y-12 Plant. ; "Contract No. W-7405-Eng-26" ; "May 1, 1951" ; "Y-756" ; Includes bibliographic references. ; Mode of access: Internet.

Energy transfer and ion cost in hydrogen plasma. ; Includes bibliographical references (p. 16-17). ; Energy transfer and ion cost in hydrogen plasma. ; Mode of access: Internet.

This annual report summarizes the activities of the Cornell Center for Pulsed-Power-Driven High-Energy-Density Plasma Studies, for the 12-month period October 1, 2005-September 30, 2006. This period corresponds to the first year of the two-year extension (awarded in October, 2005) to the original 3-year NNSA/DOE Cooperative Agreement with Cornell, DE-FC03-02NA00057. As such, the period covered in this report also corresponds to the fourth year of the (now) 5-year term of the Cooperative Agreement. The participants, in addition to Cornell University, include Imperial College, London (IC), the University of Nevada, Reno (UNR), the University of Rochester (UR), the Weizmann Institute of Science (WSI), and the P.N. Lebedev Physical Institute (LPI), Moscow. A listing of all faculty, technical staff and students, both graduate and undergraduate, who participated in Center research activities during the year in question is given in Appendix A.

It is shown that as the resonance condition of the particle-wave interaction is varied adiabatically, that the particles trapped in the wave will form phase space holes or clumps that can enhance the particle-wave energy exchange. This mechanism can cause much larger saturation levels of instabilities, and even allow the free energy associated with instability, to be tapped in a system that is linearly stable due to background dissipation.