| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-04-01 |
| タイトル |
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タイトル |
Visualization of heavy ion particle Bragg peaks in water by ultrasound imaging |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Masanori Kobayashi
Osamu Okudaira
Shikazono Naoya
Kazuhiro Terasawa
Kodaira Satoshi
Nagaya Okada
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Methods for visualizing charged particles in water have been extensively studied, whether for observing subatomic particles originating from space or monitoring charged particle beams used in radiation therapy. At the Heavy Ion Medical Accelerator in Chiba (HIMAC) facility of the National Institute of Radiological Sciences, we conducted ultrasound echo imaging of a water volume irradiated with 500 MeV n?1 Fe ions using an ultrasound imaging device. The resulting ultrasound echo images revealed microbubble-like signals near the Fe ion Bragg peak. Although the
intensity of the Fe ion beam pulses was insufficient to boil the water, and the ultrasound device did not generate sound pressure levels high enough to induce cavitation, microbubbles were nonetheless observed in the ultrasound echo images. These microbubbles likely formed through a mechanism in which microscopic cavities (bubble nuclei) created by individual Fe ions aggregated to form larger cavities, leading to the appearance of microbubbles. |
| 書誌情報 |
Japanese Journal of Applied Physics
巻 64,
p. 03SP26,
発行日 2025-03
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| 出版者 |
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出版者 |
IOP Publishing |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
1347-4065 |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.35848/1347-4065/adb58e |
