Author/Authors :
Ohigashi، نويسنده , , N. and Tsunawaki، نويسنده , , Y. and Kiyochi، نويسنده , , M. and Nakao، نويسنده , , N. and Fujita، نويسنده , , M. and Imasaki، نويسنده , , K. and Nakai، نويسنده , , S. and Mima، نويسنده , , K.، نويسنده ,
Abstract :
A new type of helical wiggler consisting of two staggered-iron arrays inserted into a solenoid field has been developed. The field measured by a test wiggler showed linear increment with the period. It was seen that 24% of the solenoid field contributed to the induced wiggler field when the gap length and the period of the wiggler were 16 and 24 mm, respectively. This wiggler would be useful for an FEL with a low-energy electron beam propagating in a strong axial guiding field.
