0191-9067/85 $3.00 + .00 Copyright ® 1985 SUNSAT Energy Council PROPOSALS FOR TEST OPERATION OF ELECTRON LINACS ON A SPACE STATION AND RADIATION PROCESSING OF THE ERUPTION CLOUD MATERIALS USING ELECTRON BEAMS FROM LINACS TAKIO TOMIMASU Electrotechnical Laboratory Sakura, Niihari Ibaraki, Japan Abstract — Test operation of electron linacs on a space station is proposed as a useful application of a long time operational test of high power microwave systems used in the SPS power transmission project. Radiation processing of high-density SO, and OCS just above volcanoes is also proposed to prevent the worldwide impact on climate as a future project using high-power, high-energy electron beams from the linacs on the space stations. ELECTRON LINACS AS SMALL SCALE MODELS OF MICROWAVE POWER SYSTEMS In the SPS power transmission project, construction and test operation of a small scale model of microwave power systems are essential prior to the construction of a large scale one. Electron linacs are very reliable and useful electron accelerators using microwave power systems. More than 2000 linacs are now widely used in the world. High energy electrons and X-rays from these linacs are mainly used for cancer therapy, non-distructive test, radiation processing of chemical materials and scientific research. In these linacs high-power and pulsed klystrons or magnetrons of low duty cycle (0.1% order) provide microwave power of a few MW to accelerating waveguides of each linac. In the power transmission project, however, CW-high power klystrons or phase controllable magnetrons will be used. The operation of the CW-devices is easier than that of the pulsed-devices since the CW devices can be driven without high voltage pulse transformers. The main parameters of the electron linacs used for test operation are as follows: Mark /: An X-Band Electron Linac Equipped With an Ion Engine
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