Abstract
Computational simulation studies with state-of-the-art codes offer cost effective means for designing ISOL targets with optimized diffusion release properties and vapor transport systems with short effusion path lengths. To demonstrate the power of the technique for designing optimum thickness targets, analytic solutions to the diffusion equation are compared with those obtained from a finite-difference code for radioactive isotope diffusion release from simple geometry targets. The viability of the Monte Carlo technique as a practical means for optimally designing target-vapor transport systems is demonstrated by simulating the effusive-flow of neutral particles through several complex target-vapor transport systems. Important issues which affect the yield rates of short-lived species generated in high power ISOL targets are also discussed
