Построена и испытана малая модель синхрот рона со слабой фокусировкой и бетатронной инжекцией, в которой н а радиусе 4 cm электроны ускоряются поступат ельной волной в кольц евом резонаторе с прямоуг ольным сечением, в кот ором возбуждаются колеба ния типаE
8,1,1. Источником высокоча стотной мощности явл яется импульсный магнетро н с настройкой в диапазоне частот 10 GHz. Т аким образом была экспериментально до казана возможность синхронного ускорен ия релятивистских ча стиц в гладком кольцевом во лноводе в присутстви и сильной радиальной с оставляющей высокоч астотного поля. A small electron model of a synchrotron with weak focusing and betatron injection was constructed and tested. In it the electrons are accelerated on a radius of 4 cm by a partial traveling wave in a rectangular toroidal resonator, excited in aE
8,1,1 mode. The source of the h-f power is a tunable impulse magnetron in the 10 GHz band. The possibility of synchronous acceleration of relativistic particles in a smooth toroidal wave-guide in the presence of a strong radial component of the h-f field was thereby confirmed experimentally.

КРУГОВОЙ УСКОРИТЕЛЬ ЭЛЕКТРОНОВ С КОЛЬЦЕВ ЫМ волноводом

A 7000-ton electromagnet forms part of the 7 GeV proton synchrotron Nimrod now under construction at the Rutherford High Energy Laboratory, Harwell. The paper outlines the design of the pulsed power supply for this magnet. The derivation of the power-supply requirements is given, and possible power supply systems are reviewed briefly. The evolution of the design of the selected system, namely motor-alternator flywheel set plus a grid-controlled mercury-arc rectifier equipment, is discussed in some detail.

Magnet power supply for the 7 GeV proton synchrotron Nimrod. Part 1: General

The principles underlying the design of the 30-MeV synchrotron are described in relation to general design principles for machines up to 400 MeV. The mechanism of operation of electron synchrotrons is described, and formulae are derived for specifying design parameters. Some practical points in the design of synchrotron magnets, accelerating chambers and electronic equipment are then considered. Finally, theradiation characteristics of the machines are described. The paper isillustrated by experiments on the 30-MeV A.E.R.E. synchrotron, and by design data on the 375-MeV Glasgow synchrotron.

F.K. Goward

Papers

The design of electron synchrotrons