(Techniques de mesure pour lesécoulements de plasma et lesécoulementsà haute enthalpie) This report is a compilation of the edited proceedings of the " Measurement Techniques for High Enthalpy and Plasma Flows " course held at the von Kármán Institute for Fluid Dynamics (VKI) in Rhode-Single copies of this publication or of a part of it may be made for individual use only. The approval of the RTA Information Policy Executive is required for more than one copy to be made or an extract included in another publication. Requests to do so should be sent to the address above. (Techniques de mesure pour lesécoulements de plasma et lesécoulementsà haute enthalpie) This report is a compilation of the edited proceedings of the " Measurement Techniques for High Enthalpy and Plasma Flows " course held at the von Kármán Institute for Fluid Dynamics (VKI) in Rhode-Saint-Genèse, Belgium, 25-29 October 1999. The Research and Technology Organization (RTO) of NATO RTO is the single focus in NATO for Defence Research and Technology activities. Its mission is to conduct and promote cooperative research and information exchange. The objective is to support the development and effective use of national defence research and technology and to meet the military needs of the Alliance, to maintain a technological lead, and to provide advice to NATO and national decision makers. The RTO performs its mission with the support of an extensive network of national experts. It also ensures effective coordination with other NATO bodies involved in R&T activities. RTO reports both to the Military Committee of NATO and to the Conference of National Armament Directors. It comprises a Research and Technology Board (RTB) as the highest level of national representation and the Research and Technology Agency (RTA), a dedicated staff with its headquarters in Neuilly, near Paris, France. In order to facilitate contacts with the military users and other NATO activities, a small part of the RTA staff is located in NATO Headquarters in Brussels. The Brussels staff also coordinates RTO's cooperation with nations in Middle and Eastern Europe, to which RTO attaches particular importance especially as working together in the field of research is one of the more promising areas of initial cooperation. These Panels are made up of national representatives as well as generally recognised 'world class' scientists. The Panels also provide a communication link to military users and other NATO bodies. RTO's scientific and technological work is …