Patent Number: 
Section: claims

1. An apparatus to filter a narrow band X-ray, the apparatus comprising:a plurality of micro filters in an array;a panel supporting the micro filters;a filter array storing unit to store a filter table having information about an angle of each of the plurality of micro filters; anda control unit to retrieve the filter table to ascertain the respective angle of each of the plurality of micro filters, to control an angle between each of the plurality of micro filters and the panel to be the ascertained angle, and to filter and output a received broadband polychromatic X-ray to be the narrow band X-ray. 2. The apparatus of claim 1, wherein the micro filters are coated such that the micro filters reflect only a narrow band X-ray having a predefined band from the broadband polychromatic X-ray; anda filter adjustment unit to adjust the angle of each of the plurality of micro filters according to the control of the control unit. 3. The apparatus of claim 1, wherein the filter table includes an angle for each of the plurality of micro filters corresponding to each of the predefined bands of the narrow band X-ray. 4. A method of filtering a narrow band X-ray, the method comprising:ascertaining a requested narrow band X-ray section of a broadband X-ray;retrieving a filter table to ascertain an angle of each of a plurality of micro filters corresponding to the requested narrow band X-ray section;adjusting an angle between the plurality of micro filters and a panel supporting the plurality of micro filters to be the ascertained angle; andreceiving a broadband polychromatic X-ray, and filtering the received broadband polychromatic X-ray to be the narrow band X-ray using the adjusted micro filters. 5. The method of claim 4, further comprising coating the plurality of micro filters such that only the narrow band X-ray having a predefined energy is reflected from the broadband. 6. The method of claim 4, wherein the filter table includes an angle of each of the plurality of micro filters corresponding to each of predefined bands of the narrow band X-ray section.