APPLICATION OF QUASI-OPTICAL APPROACH TO CONSTRUCT RF POWER-SUPPLY FOR TEV LINEAR COLLIDERS

An idea to use a quasi-optical approach for constructing an RF power s upply for TeV linear e(+)e(-) colliders is developed. The RF source of the proposed scheme is composed of a large number of low-power RF amp lifiers commutated by quasi-optical elements. The RF power of this sou rce is transmitted to the accelerating structure of the collider by me ans of quasi-optical waveguides and mirrors. Such an approach enables one not only to decrease the required peak RF power by several orders of magnitude with respect to the traditional approach based on standar d klystron technique, but also to achieve the required level of reliab ility, as it is based on well-developed technology of serial microwave devices. To illustrate the proposed scheme, a conceptual project of 2 x 500 GeV X-band collider is considered. Accelerating structure of th e collider is of the standard travelling wave type and the RF source i s assumed to be composed of 0.7 MW klystrons. All equipment of such a collider is placed in a tunnel of 12 x 6 m(2) cross section. It is sho wn that such a collider may be constructed at the present level of acc elerator technique.