Optimizing the Ranchero Coaxial Flux Compression Generator

Conference · Sun Oct 18 04:00:00 EDT 1998

OSTI ID:759416

Tasker, D G ^[1]; Goforth, J H; Fowler, C M; Lopez, E A; Oona, H; King, J C; Herrera, D H; Torres, D T; Reinovsky, R E; Martinez, E C; Stokes, J L; Tabaka, L J; Garcia, O F; Atchison, W L; Faehl, R J; Lindemuth, I R; Keinigs, R K; Miller, P J

---

1. Los Alamos National Laboratory

Ranchero is an explosively driven magnetic flux-compression generator that has been developed, over the last four years, as a versatile power source for high energy density physics experiments. It is coaxial, and comprises a 15 cm-diameter armature and a 30-cm stator, each aluminum. The length may be varied to suit the demands of each experiment; thus far, lengths of 0.43 m and 1.4 m have been used. The stator is filled and driven by a high performance cast explosive, and the ultimate performance of the device is limited by the smoothness of the armature expansion. The armature explosive is initiated on axis by PETN hemispheres, spaced at intervals of about 18 mm and 24.5 mm; each is simultaneously detonated by a slapper detonator system. Calculations of armature expansion predicted ripples less than 0.2 mm, and this was confirmed in early experiments. Yet, ripples approaching tens of millimeters were observed in some more recent experiments. The authors discuss the possible origins of the se large ripples, and the methods the authors have used to correct them.

• Research Organization: Los Alamos National Lab., NM (US)
• Sponsoring Organization: USDOE Office of Defense Programs (DP) (US)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 759416
• Report Number(s): LA-UR-98-4566
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ARMATURES
COMPRESSION
DESIGN
DETONATORS
HYDRODYNAMICS
PERFORMANCE
PETN
POWER SUPPLIES
STATORS
TEST FACILITIES