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To investigate the three-dimensional unsteady flow and the turbulence intensities behind rotating blade rows of turbomachines, a procedure using a fast-response pressure probe has been developed. The integration of the cylindrical miniature pressure transducers into the probe head minimizes the risk of mechanical damage. The dynamic behaviour of the probe was analyzed. The application of the probe to the rotor exit flow of an axial compressor is described and results are presented.

A Bundle Divertor was chosen as the impurity control and plasma exhaust system for the beam driven Demonstration Tokamak Hybrid Reactor-DTHR. ln the context of a preconceptual design study of the reactor and associated facility a. bundle divertor concept was developed and integrated into the reactor system. The overall system was found feasible and scalable for reactors with intermediate toroidal field strengths on axis. The• important design characteristics are: the overall average current density of the divertor coils is 0.73 kA for each tesla of toroidal field on axis; the div~rtor windings are made from superconducti.ng cables supported by steel structures and are designed to be maintainable; the particle collection assembly and auxiliary cryosorption vacuum pump are dual systems designed such that they can be reactivated alternatively to allow for continuous reactor operation; and the power requirement for energizing and operating the divertor is about 5

This r e p o r t was prepared as an account o f Government sponsored work. Neither the United States, nor the Administration, nor any person a c t i n g on behalf of the 'Administration: A. Makes any warranty o r representation, expressed o r implied,. w i t h respect t o the accuracy, completeness , o r usefulness o f the information contained i n t h i s report, o r t h a t the use of any information, apparatus, method o r process d i sclosed i n t h i s r e p o r t may not i n f r i n g e p r i v a t e l y owne'd r i g h t s ; o r B.

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