The DNA/Maxwell high power generator, BLACKJACK 5, has been developed as a versatile bremsstrahlung radiation source for nuclear weapon simulation testing. Three different e-beam geometries are available to efficiently match the dose/area requirements of the test objects. A 25 cm dia annular ring e-beam has been well characterized to produce 22 krads-Si with a 2:1 uniformity over a 1000 cm2 test area in a 50 ns pulse. This diode and radiation source will be described in detail along with several radiation diagnostic techniques. For small area test objects, a pinched e-beam diode has been designed and partially characterized. Dose measurements of 30 krads-Si at 10.5 cm suggest that up to 500 krads-Si or 25 cal/cm2 should be available at 2.5 cm from the bremsstrahlung converter. A 90 cm dia ring e-beam has been designed for efficient radiation exposures to test objects larger than 10000 cm2. This source should produce 2.3 krads-Si over these larger areas. The diodes are nominally operated in the 1 to 2 MV mean e-beam potential range, however, the system can be adjusted to deliver high X-ray fluences with lower mean e-beam potentials.
Bremsstrahlung source development on BLACKJACK 5
Entwicklung einer Bremsstrahlungsquelle am BLACKJACK 5
1985
4 Seiten, 14 Bilder
Aufsatz (Konferenz)
Englisch
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