X-ray-induced quenching of the $^{229}$Th clock isomer in CaF$_2$
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866908479613042688 |
|---|---|
| author | Guan, Ming Bartokos, Michael Beeks, Kjeld Fujimoto, Hiroyuki Fukunaga, Yuta Haba, Hiromitsu Hiraki, Takahiro Kasamatsu, Yoshitaka Kitao, Shinji Leitner, Adrian Masuda, Takahiko Nagasawa, Nobumoto Okai, Koichi Ogake, Ryoichiro Pimon, Martin Pressler, Martin Sasao, Noboru Schaden, Fabian Schumm, Thorsten Seto, Makoto Shigekawa, Yudai Shimizu, Kotaro Sikorsky, Tomas Tamasaku, Kenji Takatori, Sayuri Watanabe, Tsukasa Yamaguchi, Atsushi Yoda, Yoshitaka Yoshimi, Akihiro Yoshimura, Koji |
| author_facet | Guan, Ming Bartokos, Michael Beeks, Kjeld Fujimoto, Hiroyuki Fukunaga, Yuta Haba, Hiromitsu Hiraki, Takahiro Kasamatsu, Yoshitaka Kitao, Shinji Leitner, Adrian Masuda, Takahiko Nagasawa, Nobumoto Okai, Koichi Ogake, Ryoichiro Pimon, Martin Pressler, Martin Sasao, Noboru Schaden, Fabian Schumm, Thorsten Seto, Makoto Shigekawa, Yudai Shimizu, Kotaro Sikorsky, Tomas Tamasaku, Kenji Takatori, Sayuri Watanabe, Tsukasa Yamaguchi, Atsushi Yoda, Yoshitaka Yoshimi, Akihiro Yoshimura, Koji |
| contents | Thorium-229 has the lowest nuclear-excited state (an isomer state) at approximately 8.356 eV, making it excitable with tabletop vacuum-ultraviolet lasers. Despite the recent success of laser excitation, the isomer quenching inside the solid-state environment remains unresolved. In this letter, we present experiments investigating X-ray-induced isomer quenching in the CaF$_2$ host, focusing on the effects of X-ray flux and temperature on the lifetime and yield of the isomer state. Our studies reveal a correlation between isomer production, isomer lifetime during irradiation, and post-irradiation afterglow of the target crystal across different temperatures, highlighting a strong relationship between isomer quenching and color-center dynamics. We developed a model to interpret the isomer quenching and the crystal's luminescence. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_03852 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | X-ray-induced quenching of the $^{229}$Th clock isomer in CaF$_2$ Guan, Ming Bartokos, Michael Beeks, Kjeld Fujimoto, Hiroyuki Fukunaga, Yuta Haba, Hiromitsu Hiraki, Takahiro Kasamatsu, Yoshitaka Kitao, Shinji Leitner, Adrian Masuda, Takahiko Nagasawa, Nobumoto Okai, Koichi Ogake, Ryoichiro Pimon, Martin Pressler, Martin Sasao, Noboru Schaden, Fabian Schumm, Thorsten Seto, Makoto Shigekawa, Yudai Shimizu, Kotaro Sikorsky, Tomas Tamasaku, Kenji Takatori, Sayuri Watanabe, Tsukasa Yamaguchi, Atsushi Yoda, Yoshitaka Yoshimi, Akihiro Yoshimura, Koji Materials Science Nuclear Experiment Thorium-229 has the lowest nuclear-excited state (an isomer state) at approximately 8.356 eV, making it excitable with tabletop vacuum-ultraviolet lasers. Despite the recent success of laser excitation, the isomer quenching inside the solid-state environment remains unresolved. In this letter, we present experiments investigating X-ray-induced isomer quenching in the CaF$_2$ host, focusing on the effects of X-ray flux and temperature on the lifetime and yield of the isomer state. Our studies reveal a correlation between isomer production, isomer lifetime during irradiation, and post-irradiation afterglow of the target crystal across different temperatures, highlighting a strong relationship between isomer quenching and color-center dynamics. We developed a model to interpret the isomer quenching and the crystal's luminescence. |
| title | X-ray-induced quenching of the $^{229}$Th clock isomer in CaF$_2$ |
| topic | Materials Science Nuclear Experiment |
| url | https://arxiv.org/abs/2505.03852 |