2022 CAP Congress / Congrès de l'ACP 2022

Session

T2-2 Plasma Physics Symposium II (DPP) | Symposium de physique des plasmas II (DPP)

T2-2

7 Jun 2022, 10:45

McMaster University

Conveners

T2-2 Plasma Physics Symposium II (DPP) | Symposium de physique des plasmas II (DPP)

• Stephan Reuter (Polytechnique Montreal)

3146. (I) Influence of discharge parameters on the mode-coupling instability in two-dimensional complex plasma crystals

Lenaic Couedel

07/06/2022, 10:45

Symposia Day (DPP) - Plasma Physics Symposium

Invited Speaker / Conférencier(ère) invité(e)

The dependence of the mode-coupling instability threshold in two-dimensional complex plasma crystals is studied. It is shown that for a given microparticle suspension at a given discharge power there exist two thresholds in pressure. Above a specific pressure p_cryst , the monolayer is always in the crystal phase. Below a specific pressure p MCI , the crystalline monolayer undergoes the...

2994. (I) The century old Langmuir probe inference problem: Beyond analytic approximations with machine learning techniques.

Prof. Richard Marchand (University of Alberta)

07/06/2022, 11:15

Symposia Day (DPP) - Plasma Physics Symposium

Invited Speaker / Conférencier(ère) invité(e)

The inference of basic plasma parameters such as density and temperature, is a century old problem, starting with the seminal work of Tonks and Langmuir in the early 1900. Several theories have been developed to determine probe characteristics; that is, collected currents as a function of bias voltage, under diverse laboratory and more recently, space plasma conditions. The advantage of the...

3084. (I) Extreme plasma heating and flows in Earth’s ionosphere

David Knudsen

07/06/2022, 11:45

Symposia Day (DPP) - Plasma Physics Symposium

Invited Speaker / Conférencier(ère) invité(e)

During quiet times, Earth’s ionosphere is characterized by relatively cool temperatures of 2,000 K (~0.2 eV) and less. However, the ionosphere can be highly disturbed in the presence of the aurora, which during active periods deposits hundreds of GW into the high-latitude atmosphere via the ionosphere. This energy comes from the magnetosphere in the form charged particle precipitation, Joule...