Zobrazeno 1 - 10
of 633
pro vyhledávání: '"Takaku, Y."'
Autor:
Ichimura, K., Chiba, K., Gando, Y., Ikeda, H., Kishimoto, Y., Kurasawa, M., Nemoto, K., Sakaguchi, A., Takaku, Y., Sakakieda, Y.
Publikováno v:
Progress of Theoretical and Experimental Physics, Volume 2024, Issue 6, June 2024, 063H01
We have established a method to measure picograms-per-gram (pg g$^{-1}$) levels of $^{238}$U and $^{232}$Th in scintillation films by combining the dry ashing method and inductively coupled plasma mass spectrometry. Trace amounts of $^{238}$U and $^{
Externí odkaz:
http://arxiv.org/abs/2405.04901
Autor:
Abe, K., Bronner, C., Hayato, Y., Hiraide, K., Hosokawa, K., Ieki, K., Ikeda, M., Kameda, J., Kanemura, Y., Kaneshima, R., Kashiwagi, Y., Kataoka, Y., Miki, S., Mine, S., Miura, M., Moriyama, S., Nakano, Y., Nakahata, M., Nakayama, S., Noguchi, Y., Sato, K., Sekiya, H., Shiba, H., Shimizu, K., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Tanaka, H., Yano, T., Han, S., Kajita, T., Okumura, K., Tashiro, T., Tomiya, T., Wang, X., Yoshida, S., Fernandez, P., Labarga, L., Ospina, N., Zaldivar, B., Pointon, B. W., Kearns, E., Raaf, J. L., Wan, L., Wester, T., Bian, J., Griskevich, N. J., Smy, M. B., Sobel, H. W., Takhistov, V., Yankelevich, A., Hill, J., Jang, M. C., Lee, S. H., Moon, D. H., Park, R. G., Bodur, B., Scholberg, K., Walter, C. W., Beauchene, A., Drapier, O., Giampaolo, A., Mueller, Th. A., Santos, A. D., Paganini, P., Quilain, B., Rogly, R., Nakamura, T., Jang, J. S., Machado, L. N., Learned, J. G., Choi, K., Iovine, N., Cao, S., Anthony, L. H. V., Martin, D., Prouse, N. W., Scott, M., Uchida, Y., Berardi, V., Calabria, N. F., Catanesi, M. G., Radicioni, E., Langella, A., De Rosa, G., Collazuol, G., Iacob, F., Mattiazzi, M., Ludovici, L., Gonin, M., Perisse, L., Pronost, G., Fujisawa, C., Maekawa, Y., Nishimura, Y., Okazaki, R., Akutsu, R., Friend, M., Hasegawa, T., Ishida, T., Kobayashi, T., Jakkapu, M., Matsubara, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Bhuiyan, N., Burton, G. T., Di Lodovico, F., Gao, J., Goldsack, A., Katori, T., Migenda, J., Ramsden, R. M., Xie, Z., Zsoldos, S., Suzuki, A. T., Takagi, Y., Takeuchi, Y., Zhong, H., Feng, J., Feng, L., Hu, J. R., Hu, Z., Kawaue, M., Kikawa, T., Mori, M., Nakaya, T., Wendell, R. A., Yasutome, K., Jenkins, S. J., McCauley, N., Mehta, P., Tarant, A., Wilking, M. J., Fukuda, Y., Itow, Y., Menjo, H., Ninomiya, K., Yoshioka, Y., Lagoda, J., Mandal, M., Mijakowski, P., Prabhu, Y. S., Zalipska, J., Jia, M., Jiang, J., Shi, W., Yanagisawa, C., Harada, M., Hino, Y., Ishino, H., Koshio, Y., Nakanishi, F., Sakai, S., Tada, T., Tano, T., Ishizuka, T., Barr, G., Barrow, D., Cook, L., Samani, S., Wark, D., Holin, A., Nova, F., Jung, S., Yang, B. S., Yang, J. Y., Yoo, J., Fannon, J. E. P., Kneale, L., Malek, M., McElwee, J. M., Thiesse, M. D., Thompson, L. F., Wilson, S. T., Okazawa, H., Lakshmi, S. M., Kim, S. B., Kwon, E., Seo, J. W., Yu, I., Ichikawa, A. K., Tairafune, S., Nishijima, K., Eguchi, A., Nakagiri, K., Nakajima, Y., Shima, S., Taniuchi, N., Watanabe, E., Yokoyama, M., de Perio, P., Fujita, S., Jesus-Valls, C., Martens, K., Tsui, K. M., Vagins, M. R., Xia, J., Izumiyama, S., Kuze, M., Matsumoto, R., Terada, K., Ishitsuka, M., Ito, H., Ommura, Y., Shigeta, N., Shinoki, M., Yamauchi, K., Yoshida, T., Gaur, R., Gousy-Leblanc, V., Hartz, M., Konaka, A., Li, X., Chen, S., Xu, B. D., Zhang, B., Posiadala-Zezula, M., Boyd, S. B., Edwards, R., Hadley, D., Nicholson, M., O'Flaherty, M., Richards, B., Ali, A., Jamieson, B., Amanai, S., Marti, Ll., Minamino, A., Suzuki, S., Scovell, P. R., Meehan, E., Bandac, I., Pena-Garay, C., Perez, J., Gileva, O., Lee, E. K., Leonard, D. S., Sakakieda, Y., Sakaguchi, A., Sueki, K., Takaku, Y., Yamasaki, S.
Publikováno v:
Nuclear Inst. and Methods in Physics Research, A 1065 (2024) 169480
The first loading of gadolinium (Gd) into Super-Kamiokande in 2020 was successful, and the neutron capture efficiency on Gd reached 50\%. To further increase the Gd neutron capture efficiency to 75\%, 26.1 tons of $\rm Gd_2(\rm SO_4)_3\cdot \rm 8H_2O
Externí odkaz:
http://arxiv.org/abs/2403.07796
Autor:
Fushimi, K., Chernyak, D., Ejiri, H., Hata, K., Hazama, R., Iida, T., Ikeda, H., Imagawa, K., Inoue, K., Ito, H., Kisimoto, T., Koga, M., Kotera, K., Kozlov, A., Kurosawa, S., Nakamura, K., Orito, R., Sakaguchi, A., Sakaue, A., Shima, T., Takaku, Y., Takemoto, Y., Umehara, S., Urano, Y., Yamamoto, Y., Yasuda, K., Yoshida, S.
Publikováno v:
Proceedings of the 37th Workshop on Radiation Detectors and Their Uses, KEK Proceedings 2023-1, (2024), p43
The existence of cosmic dark matter and neutrino properties are long-standing problems in cosmology and particle physics. These problems have been investigated by using radiation detectors. We will discuss the application of inorganic crystal scintil
Externí odkaz:
http://arxiv.org/abs/2402.08786
Autor:
Sakakieda, Y., Hosokawa, K., Nakanishi, F., Hino, Y., Inome, Y., Sakaguchi, A., Takaku, Y., Ikeda, M., Sekiya, H.
Numerous particle physics experiments utilize gadolinium (Gd), a rare earth element with the most significant neutron capture cross-section among all elements, to detect anti-neutrinos via inverse beta-decays or to remove neutron-induced background e
Externí odkaz:
http://arxiv.org/abs/2306.06926
Autor:
Hosokawa, K., Ikeda, M., Okada, T., Sekiya, H., Fernandez, P., Labarga, L., Bandac, I., Perez, J., Ito, S., Harada, M., Koshio, Y., Thiesse, M. D., Thompson, L. F., Scovell, P. R., Meehan, E., Ichimura, K., Kishimoto, Y., Nakajima, Y., Vagins, M. R., Ito, H., Takaku, Y., Tanaka, Y., Yamaguchi, Y.
This paper reports the development and detailed properties of about 13 tons of gadolinium sulfate octahydrate, $\rm Gd_2(\rm SO_4)_3\cdot \rm 8H_2O$, which has been dissolved into Super-Kamiokande (SK) in the summer of 2020. We evaluate the impact of
Externí odkaz:
http://arxiv.org/abs/2209.07273
Autor:
Ito, S., Ichimura, K., Takaku, Y., Abe, K., Harada, M., Ikeda, M., Ito, H., Kishimoto, Y., Nakajima, Y., Okada, T., Sekiya, H.
Publikováno v:
Progress of Theoretical and Experimental Physics, Volume 2020, Issue 9, September 2020, 093H02
Chemical extraction using a molecular recognition resin named "Empore Radium Rad Disk" was developed to improve sensitivity for the low concentration of radium (Ra). Compared with the previous method, the extraction process speed was improved by a fa
Externí odkaz:
http://arxiv.org/abs/2006.09664
Autor:
Ito, S., Okada, T., Takaku, Y., Harada, M., Ikdeda, M., Kishimoto, Y., Koshio, Y., Nakahata, M., Nakajima, Y., Sekiya, H.
Publikováno v:
Progress of Theoretical and Experimental Physics, Volume 2019, Issue 6, June 2019, 063H03
Demand to use gadolinium (Gd) in detectors is increasing in the field of elementary particle physics, especially neutrino measurements and dark matter searches. Large amounts of Gd are used in these experiments. Therefore, to access the impacts of Gd
Externí odkaz:
http://arxiv.org/abs/1905.10962
Publikováno v:
Progress of Theoretical and Experimental Physics, Volume 2018, Issue 9, September 2018, 091H01
High-purity germanium (HPGe) detectors are widely used for the measurement of the low concentrated radioactivities. For the Super-Kamiokande-Gadolinium project, the concentration of radium in Gd$_2$(SO$_4$)$_3{\cdot}$8H$_2$O is determined by using HP
Externí odkaz:
http://arxiv.org/abs/1808.03376
Publikováno v:
Progress of Theoretical and Experimental Physics, Volume 2017, Issue 11, November 2017, 113H01
The new Super-Kamiokande-Gadolinium (SK-Gd) project is an upgrade of the Super-Kamiokande (SK) detector. In the SK-Gd project, 0.2\% Gd$_2$(SO$_4$)$_3$ is loaded into the 50 kton water tank of the SK. One of the main purposes of the project is to dis
Externí odkaz:
http://arxiv.org/abs/1709.03417
Autor:
Ichimura, K, Chiba, K, Gando, Y, Ikeda, H, Kishimoto, Y, Kurasawa, M, Nemoto, K, Sakaguchi, A, Takaku, Y, Sakakieda, Y
Publikováno v:
Progress of Theoretical & Experimental Physics: PTEP; Jun2024, Vol. 2024 Issue 6, p1-8, 8p