A glass capillary with an inner metal coating is proposed to be used as soft-x-ray fiber optics in medical applications. Based on the results of theoretical calculations, nickel was chosen as the coating material for x rays radiated from a conventional x-ray tube. A nickel-coated capillary was fabricated by electroless deposition, and focusing and collimating effects were observed from measurements of the transmission efficiency of soft x rays. The transmission of a nickel-coated capillary with an inner diameter of 0.53 mm and a length of 300 mm was 10%, which is approximately double that of an uncoated glass capillary.
© 2005 Optical Society of America
Yuji Matsuura, Tadaaki Oyama, and Mitsunobu Miyagi, "Soft-x-ray hollow fiber optics with inner metal coating," Appl. Opt. 44, 6193-6196 (2005)