COMPACT UNDULATOR SYSTEM AND METHODS
An undulator with a compact construction is provided that reduces weight, complexity and cost. The compact undulator system and methods provides mechanical integrity without compromising magnetic field quality.
1 . An undulator system, comprising:
a frame comprising a moveable magnetic array opposing a stationary magnetic array, each magnetic array comprising a plurality of holders horizontally arranged with each holder securing a magnetized permanent magnet: and
a driving mechanism connected to the moveable magnetic array, the driving mechanism comprising a rod component moveable within a tube component to move the moveable magnetic array along a horizontal beam axis with respect to the stationary magnetic array.
2 . The undulator system according to claim 1 wherein the frame is a box-shape frame.
3 . The undulator system according to claim 1 wherein the magnetized permanent magnet is soldered to each holder.
4 . The undulator system according to claim 1 wherein each magnetic array includes a pair of base plates, the pair of base plates securing the plurality of holders.
5 . The magnet array of the undulator system according to claim 1 wherein each holder comprises a copper material.
6 . The magnet array of the undulator system according to claim 1 wherein the magnetized permanent magnet is a neodymium magnet.
7 . The undulator system according to claim 1 further comprising a cooling element attached to the frame for controlling temperature of the magnet array.
8 . The undulator system according to claim 7 wherein the cooling element comprises a coolant of either water or cold nitrogen.
9 . The undulator system according to claim 1 wherein the driving mechanism moves the moveable magnetic array by a half period (12.2 mm) along a horizontal beam axis with respect to the stationary magnetic array.
10 . The undulator system according to claim 1 wherein each magnetic array is covered with nickel plated copper foil.
11 . The undulator system according to claim 1 further comprising a plurality of miniature linear bearings attached to the moveable magnetic array.
12 . An undulator system, comprising:
a frame consisting of two arrays, a moveable magnetic array opposing a stationary magnetic array forming a gap between the arrays, each magnetic array comprising a plurality of holders horizontally arranged with a magnetized permanent magnet secured to each holder;
a plurality of miniature linear bearings positioned within the frame, each miniature linear bearing fastened to the moveable magnetic array; and
a driving mechanism connected to the moveable magnetic array, the driving mechanism comprising a rod component moveable within a tube component activating the plurality of miniature linear bearings to move the moveable magnetic array along a horizontal beam axis with respect to the stationary magnetic array.
13 . The undulator system according to claim 12 wherein the gap is a constant vertical gap.
14 . The undulator system according to claim 13 wherein the constant vertical gap is 5 mm.
15 . The undulator system according to claim 12 wherein the frame is a box-shape frame.
16 . The undulator system according to claim 12 further comprising a cooling element attached to the frame for controlling temperature of the magnet array.
17 . The undulator system according to claim 16 , the cooling element comprising a coolant of either water or cold nitrogen.
18 . The undulator system according to claim 12 wherein each holder comprises a copper material.
19 . The magnet array of the undulator system according to claim 12 wherein the magnetized permanent magnet is a neodymium magnet.
20 . The undulator system according to claim 12 wherein each magnetic array is covered with nickel plated copper foil.