Seeding experiments at SPARC

Velocity Bunching Experiments at Sparc

During the last SPARC run a preliminary experimental study of the velocity bunching technique has been performed. Bunch length and projected emittance have been measured at the linac exit as a function of the injection phase in the first accelerating structure and for different solenoids field values. A maximum compression ratio up to a factor 13 has been observed. In particular a peak current ...

Cloud Seeding Experiments in Australia

Discussion of Reports on Cloud Seeding Experiments

The work on cloud seeding which has been described in this Symposium is new to me. I find it extremely gratifying to encounter such well designed and carefully conducted experiments in which the principles of randomization have been scrupulously adhered to. A few of the speakers appear to think that there is some conflict between a "statistical" experiment, fulfilling the requirements of experi...

Evidence of widespread effects of cloud seeding at two Arizona experiments.

The average effect of two cloud seeding experiments (1957-1960; 1961, 1962, and 1964) over the Santa Catalina Mountains, Arizona, on the 24-hr precipitation at Walnut Gulch, 65 miles away, was an apparent 40% loss of rainfall (P = 0.025) on seeded, as opposed to not-seeded, experimental days. Larger apparent losses, some highly significant, were found for experimental days on which Walnut Gulch...

SPARC SPARC Station VAX

With the increasing availability of multiprocessor platforms based on dierent types of archi-tectures (shared memory, distributed memory, network based), users will be increasingly faced with heterogeneous and distributed multiprocessor computing facilities. Programming environment concepts have to be found which enable the user to program and use these heterogeneous computing resources, consis...