four riders onto the optical bench and fit the lens and polarization filter, étalon support table, interference filter, and CCD camera onto the riders as shown in Figure 4. Position the riders on the bench with the support rods at  approximately the following separations: of magnet yoke base lens/polarizing filter: 15 cm – Lens/polarizing filter - interference filter: 6 cm (as close as possible) Interference filter étalon support table: 10 cm – Étalon support - CCD camera 15 cm – Make sure that the lens in the lens/polarization filter  Figure 5 combination faces the magnet. Filter has been changed. Turn either way Ignore this:The interference  Mount the filter appears when viewed from  one side and yellow when viewed form the other. Carefully adjust the heights of the lens/polarization filter, interference  filter, and CCD camera so that their centers are aligned with the center of the mercury lamp and clamp them in place. Fix the adjusted heights with the positioning rings on the support rods (see Figure 6). This allows the optical elements to be easily removed and replaced accurately. As a rough guide for initial positioning, when the optical axes of the  various elements are collinear and aligned with the lamp center, the bottoms of the positioning rings are at the following distances below the bottoms of their respective elements: Lens/polarizing filter: 95 mm Interference filter: 97 mm Étalon table: 34 mm CCD camera: 98 mm  Figure 6 Place the Fabry-Pérot étalon on the support table, oriented with the three plate adjusting  screws on the lamp side and the single tilt adjustment screw on the camera side. Make sure the étalon is centered on the optical axis and square to it. Do not adjust the plate adjustment screws.  6. Optimizing the Interference Pattern The procedure for determining e/m involves measuring the diameters of concentric circles which differ only slightly. Precise adjustment of the optical setup to yield properly centered and e undistorted circular fringes is important for obtaining an accurate result. To obtain a good interference pattern, attention should be paid to the following factors: Even illumination of the Fabry-Pérot étalon.  Careful positioning of the various optical elements so  they are centered along the optical axis of the setup and
Figure 5  Mount the four riders onto the optical bench and fit the lens and polarization filter, étalon support table, interference filter, and CCD camera onto the riders as shown in Figure 4.  Position the riders on the bench with the support rods at approximately the following separations: of magnet yoke base – lens/polarizing filter: 15 cm Lens/polarizing filter - interference filter: 6 cm (as close as possible) Interference filter – étalon support table: 10 cm Étalon support - CCD camera – 15 cm  Make sure that the lens in the lens/polarization filter combination faces the magnet.  Filter has been changed. Turn either way Ignore this:The interference filter appears when viewed from one side and yellow when viewed form the other.  Carefully adjust the heights of the lens/polarization filter, interference filter, and CCD camera so that their centers are aligned with the center of the mercury lamp and clamp them in place. Fix the adjusted heights with the positioning rings on the support rods (see Figure 6). This allows the optical elements to be easily removed and replaced accurately.  As a rough guide for initial positioning, when the optical axes of the various elements are collinear and aligned with the lamp center, the bottoms of the positioning rings are at the following distances below the bottoms of their respective elements: Lens/polarizing filter: 95 mm Interference filter: 97 mm Étalon table: 34 mm CCD camera: 98 mm  Figure 6  Place the Fabry-Pérot étalon on the support table, oriented with the three plate adjusting screws on the lamp side and the single tilt adjustment screw on the camera side. Make sure the étalon is centered on the optical axis and square to it. Do not adjust the plate adjustment screws.  6. Optimizing the Interference Pattern The procedure for determining e/m involves measuring the diameters of concentric circles which differ only slightly. Precise adjustment of the optical setup to yield properly centered and undistorted circular fringes is important for obtaining an accurate result. To obtain a good interference pattern, attention should be paid to the following factors:  Even illumination of the Fabry-Pérot étalon.  Careful positioning of the various optical elements so they are centered along the optical axis of the setup and e
Zeeman%20Effect.docx