Small-Class Disk Explosive Magnetic Generators
V.K. Baranov, A.M. Buyko, S.F. Garanin, A.M. Glybin, A.G. Golubinsky, P.N. Gus’kov, A.V. Ivanovsky, D.A. Irinichev, V.A. Karepov, K.N. Klimushkin, V.B. Kudel’kin, S.D. Kuznetsov, V.I. Mamyshev, S.M. Polyushko, Z.S. Tsibikov, E.V. Shapovalov, A.A. Zimenkov
All-Russia Research Institute of Experimental Physics (RFNC-VNIIEF)
ivanovsky@elph.vniief.ru
To obtain precision data (in one experiment the error was £ 1%) on the shock compressibility of substances, the devices with a big mass of an impactor and of a target are required. As a rule, such studies are carried out on light-gas guns. One of the best guns, a two-stage light-gas gun in the Livermore Laboratory (USA), accelerates the impactors of 20 g mass up to a velocity of 8 km/s.
Disk explosive magnetic generators (DEMGs) can be an alternative to light-gas guns.
The paper describes the results of a series of experiments studying the shock compressibility of substances using small-class DEMGs [1]. There have been demonstrated:
- high quality of realized aluminum impact liners at velocities of 7-8 km/s;
- a possibility of obtaining a point on the Hugoniot with an error of less than 1% both in compression and pressure.
In terms of possibilities of precision studies of shock compressibility of substances, the small-class DEMGs are as good as the best samples of light-gas guns, and in terms of possibilities of identical loading of up to ~ 10 samples in one experiment, they are probably superior. The latter, in particular, makes it possible to experimentally confirm the accuracy of the estimated measurement errors from the measurement data for a number of reference materials.
[1] P.V. Duday, A.A. Zimenkov, A.V. Ivanovsky, et al. "Disc Explosive Magnetic Generators of a New Generation", Reports of the Russian Academy of Sciences, Physics. Technical Sciences. 2021. V.498. P. 7-10.
 

shock compressibility of substances,disk explosive magnetic generator,impact liners