Author/Authors :
Konoplev، نويسنده , , Iv.V and Cross، نويسنده , , A.W and He، نويسنده , , W and Phelps، نويسنده , , A.D.R and Ronald، نويسنده , , K and Robb، نويسنده , , G.R.M and Whyte، نويسنده , , C.G and Ginzburg، نويسنده , , N.S. and Peskov، نويسنده , , N.Yu and Sergeev، نويسنده , , A.S، نويسنده ,
Abstract :
The use of two-dimensional (2D) Bragg resonators of coaxial geometry, realising two-dimensional distributed feedback, is considered as a method of providing additional mode selection and producing spatially coherent radiation from oversized annular electron beams. The main goals of the project are to prove operability of a FEM using 2D Bragg structures and compare the performance of the FEM using the novel 2D Bragg resonators with conventional 1D Bragg resonators.