Author/Authors :
Lagrange، نويسنده , , J.-B. and Planche، نويسنده , , T. and Yamakawa، نويسنده , , E. and Uesugi، نويسنده , , T. and Ishi، نويسنده , , Y. and Kuriyama، نويسنده , , Y. and Qin، نويسنده , , B. and Okabe، نويسنده , , K. and Mori، نويسنده , , Y.، نويسنده ,
Abstract :
Fixed field alternating gradient (FFAG) accelerators are recently subject to a strong revival. They are usually designed in a circular shape; however, it would be an asset to guide particles with no overall bend in this type of accelerator. An analytical development of a straight FFAG cell which keeps zero-chromaticity is presented here. A magnetic field law is thus obtained, called “straight scaling law”, and an experiment has been conducted to confirm this zero-chromatic law. A straight scaling FFAG prototype has been designed and manufactured, and horizontal phase advances of two different energies are measured. Results are analyzed to clarify the straight scaling law.
Keywords :
Zero-chromaticity , Straight line , Fixed field accelerator , FFAG
