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Proceedings Paper

Investigation of micro-focus x-ray tube for radiography
Author(s): V. Ya. Shovkun; M. A. Kumakhov; I. V. Pirshin; V. D. Gelever
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Paper Abstract

The radiography with micro focus x-ray tube is very promising for use in non-destructive industrial control, medical and biological x-ray imaging. We investigated a micro focus x-ray tube with hollow anode to find the smallest available focal spot sizes under the different values of the X-ray tube load. The electron beam focusing system of the x-ray tube was designed with the use of the deflection-coil assemblies and a short focusing lens. Under varying the tube power load from 20W to 70W we found that the X-ray focal spot size (full width at half maximum-FWHM) is changed from 25 μm to 54 μm. The methods of focal spot size measurements are shortly described. Examples of radiographic images of the pair-line object target (phantom CIRS 1 1A) are presented. The phantom study showed the resolving power 18 pl/mm÷20 pl/mm. Practical applications of the developed X-ray apparatus are discussed in the report.

Paper Details

Date Published: 6 December 2006
PDF: 5 pages
Proc. SPIE 5943, X-ray and Neutron Capillary Optics II, 59430Z (6 December 2006); doi: 10.1117/12.637997
Show Author Affiliations
V. Ya. Shovkun, Institute for Roentgen Optics (Russia)
M. A. Kumakhov, Institute for Roentgen Optics (Russia)
I. V. Pirshin, P.N. Lebedev Physical Institute, RAS (Russia)
V. D. Gelever, Institute for Roentgen Optics (Russia)

Published in SPIE Proceedings Vol. 5943:
X-ray and Neutron Capillary Optics II
Muradin A. Kumakhov; Richard B. Hoover, Editor(s)

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