Validation of MHD Code FLUX-rz Using Scintillation Measurements of Thermal Radiation in Nested Wire Array <inline-formula> <tex-math notation="LaTeX">$Z$ </tex-math> </inline-formula>-Pinch

Abstract

This paper demonstrates the improved simulation of a Z-pinch experiment with 2-D magnetohydrodynamic code FLUX-rz developed in RFNC-VNIIEF. A Z-pinch load was nested wire array powered by a helical magnetocumulative generator with the current pulse $I_{\max } \approx 4.2$ MA and effective rise time $\tau \approx 400$ ns. Validation of X-ray spectral measurements carried out with scintillation detector filters pointed out a necessity to take into consideration both the scintillator “dead” layer and oxide films on the aluminum filter surface.