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First experimental measurements of the plasma potential throughout the presheath and sheath at a boundary in a weakly collisional plasma

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dc.creator Oksuz, L
dc.creator Hershkowitz, N
dc.date 2002-09-30T00:00:00Z
dc.date.accessioned 2021-12-03T11:19:39Z
dc.date.available 2021-12-03T11:19:39Z
dc.identifier 2f73ee1d-893a-482e-9ff4-55b5e88d23de
dc.identifier 10.1103/physrevlett.89.145001
dc.identifier https://avesis.sdu.edu.tr/publication/details/2f73ee1d-893a-482e-9ff4-55b5e88d23de/oai
dc.identifier.uri http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/90705
dc.description Experimental data obtained with emissive probes and Langmuir probes show that the plasma potential profile in the presheath scales as -ephi/T-e=root(x(0)-x)/lambda, consistent with ion flux conservation, and that the sheath consists of a transition region and an electron-free collisionless sheath with thicknesses scaling as lambda(1/5)lambda(D)(4/5) and lambda(D)(ephi/T-e)(3/4), respectively, where lambda is the ion-neutral collision length. Results support Rieman's presheath and transitional region model [Phys. Plasmas 4, 4158 (1997)]. The potential drop over the presheath and transition sheath region were the order of T-e/e and 2T(e)/3e, respectively, increasing with increasing pressure.
dc.language eng
dc.rights info:eu-repo/semantics/openAccess
dc.title First experimental measurements of the plasma potential throughout the presheath and sheath at a boundary in a weakly collisional plasma
dc.type info:eu-repo/semantics/article


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