Fundamental study on parallel-beam radiography using a polycapillary plate

Eiichi Sato; Hiroyuki Toriyabe; Yasuomi Hayasi; Etsuro Tanaka; Hidezo Mori; Toshiaki Kawai; Tatsumi Usuki; Koetsu Sato; Haruo Obara; Toshio Ichimaru; Kazuyoshi Takayama; Hideaki Ido; Yoshiharu Tamakawa

doi:10.1117/12.465571

3 May 2002 Fundamental study on parallel-beam radiography using a polycapillary plate

Eiichi Sato, Hiroyuki Toriyabe, Yasuomi Hayasi, Etsuro Tanaka, Hidezo Mori, Toshiaki Kawai, Tatsumi Usuki, Koetsu Sato, Haruo Obara, Toshio Ichimaru, Kazuyoshi Takayama, Hideaki Ido, Yoshiharu Tamakawa

Author Affiliations +

Proceedings Volume 4682, Medical Imaging 2002: Physics of Medical Imaging; (2002) https://doi.org/10.1117/12.465571
Event: Medical Imaging 2002, 2002, San Diego, California, United States

Abstract

Fundamental study on parallel beam radiography using a polycapillary plate is described. The x-ray generator used in this experiment is NST-1005 made by Sofron Inc. with maximum tube voltage and current of 100kV and 5.0 mA, respectively. In this experiment, the tube voltage was regulated from 20 to 30 kV, and the tube current had a constant value of 4.0 mA. The exposure time is regulated in order to control optimum film density. The polycapillary plate is J5022-21 made by Hamamatsu Photonics, and the outside and effective diameters are 87 and 77 mm, respectively. The thickness and the whole diameter of the polycapillary are 1.0 mm and 25 micrometers , respectively. The x- rays from the tube are formed to parallel beam by the polycapillary, and the radiogram is taken using an industrial x-ray film of Fuji IX 100 without using a screen. In the measurement of image resolution, we employed three brass spacers of 2, 30, and 60 mm in height. By the test chart, the resolution decreased according to increases in the spacer height without using the polycapillary. In contrast, the resolution seldom varied when the polycapillary was employed. In the polycapillary radiography of four tungsten wires, higher-contrast images of 50 micrometers wire were observed, and the line width seldom varied according to increases in the spacer height.

Citation Download Citation

Eiichi Sato, Hiroyuki Toriyabe, Yasuomi Hayasi, Etsuro Tanaka, Hidezo Mori, Toshiaki Kawai, Tatsumi Usuki, Koetsu Sato, Haruo Obara, Toshio Ichimaru, Kazuyoshi Takayama, Hideaki Ido, and Yoshiharu Tamakawa "Fundamental study on parallel-beam radiography using a polycapillary plate", Proc. SPIE 4682, Medical Imaging 2002: Physics of Medical Imaging, (3 May 2002); https://doi.org/10.1117/12.465571

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available