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The new fabrication method of standard surface sources
Yasushi Sato1, Yoshio Hino, Takahiro Yamada
1National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 2, 1-1-1, Umezono, Ttsukuba, Ibaraki 305-8568, Japan. yss.sato@aist.go.jp
Summary
Researchers created standard surface sources using inkjet printing with radioactive inks on paper. This novel method yields high uniformity, resolution, and customizable shapes for radioactive sources.
Area of Science:
- Nuclear Engineering
- Materials Science
Background:
- Standard surface sources are crucial for radiation detection calibration and research.
- Traditional fabrication methods can be complex and limit design flexibility.
Purpose of the Study:
- To develop a novel, versatile inkjet printing method for fabricating standard surface sources.
- To evaluate the performance characteristics of these printed sources.
Main Methods:
- Radioactive material was mixed into inks and printed onto paper using an inkjet printer.
- Three types of test patterns were created: uniformity, positional resolution, and logarithmic intensity.
Main Results:
- The fabricated sources demonstrated high uniformity and positional resolution.
- The method allows for arbitrary shapes and a broad range of radioactive intensities.
- Printed patterns included 100mm x 100mm uniformity tests, varying line widths/intervals for resolution, and intensity gradients.
Conclusions:
- Inkjet printing offers a flexible and effective approach for producing customized standard surface sources.
- This technique enhances the capabilities for creating specialized radioactive sources for various applications.