HIF 2010
18th International Symposium
on Heavy Ion Inertial Fusion -
Information

Title:	Dr.
Family Name:	Orlov
First Name:	Nikolay
E-Mail:	nyuorlovmail.ru
Affiliation for Badge:	JIHT RAS, Moscow
Institute:	Joint Institute for High Temperatures RAS
Address (Street):	Izhorskaya. 13, building 2
Postal Code, City:	125412, Moscow
Country:	Russia
Phone:	+7(495)4857988
Fax:	+7(495)4857990
Payment:	Cash at the conference site
Author(s):	N.Yu. Orlov
Institute(s):	Joint Institute for High Temperatures RAS
Title:	THEORETICAL AND EXPERIMENTAL STUDIES OF RADIATIVE PROPERTIES OF SUBSTANCES AND THEIR APPLICATIONS TO LASER AND HEAVY ION INERTIAL FUSION.
Abstract:	Theoretical and experimental studies of radiative properties of substances that are used as soft X-ray sources have been carried out depending on the plasma composition. Important features of the theoretical model, known as the ion model (IM), which can be used for complex materials, are discussed. An optimizing procedure that can determine an effective complex material to produce optically thick plasma by laser interaction with a thick solid target is applied. The efficiency of the resulting material is compared with the efficiency of other composite materials that have previously been evaluated theoretically. Similar theoretical study is performed for the optically thin plasma produced by exploding wires. Theoretical estimations of radiative efficiency are compared with experimental data that are obtained from measurements of X-pinch radiation energy yield using two exploding wire materials, NiCr and Alloy 188. It is shown that theoretical results agree well with the experimental data [1]. Symmetric multilayer X-pinch, where W and Mo wires are used, is considered. Theoretical explanation of experimental phenomena is discussed basing upon W and Mo radiative spectra. The spectral coefficients for X-ray absorption are calculated for Carbon plasma for diagnostics of the temperature and ionization degree of low Z foams target in the combined laser - heavy ion beam experiments. Keywords: The radiative opacity; Rosseland and Planck mean free paths. 1. Orlov, N.Yu., Guskov, S.Yu., Pikuz, et al (2007). Laser and Particle Beams. 25, pp. 1-9.
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