UNDULATOR CAPABLE OF REDUCING INTEGER-ORDER-HARMONIC LIGHT, AND RADIATION LIGHT GENERATING DEVICE

摘要

PROBLEM TO BE SOLVED: To simply and surely alleviate integer-order-harmonic light.;SOLUTION: Magnet alignment 12 is so arranged that electrons 10 progressing winding their way in the vicinity of positions Z_n (n=1, 2, ...) inside an electron passage 5 are to make a longer turn than when they pass other positions. When a straight line L is defined to be in a Z axis direction, which is included in a plane where a two-dimensional rectangular lattice with a ratio r(=b/a(1)) of a lattice point spacing b to a lattice point spacing a is formed, and which is inclined at a gradient α that is irrational number with respect to a direction of a short side of the two-dimensional rectangular lattice, a, b and α satisfying a relation of a cosαb cos(90°-α), the positions Zn are positions of quasiperiodic lattice points arranged at an interval longer than a standard spacing of a point sequence of the quasiperiodic lattice points, out of quasiperiodic lattice points that are projected points toward the straight line of the two-dimensional rectangular lattice inside a window of a predetermined width with the straight line L as a baseline.;COPYRIGHT: (C)2011,JPO&INPIT