التفاصيل البيبلوغرافية
| العنوان: |
Second gadolinium loading to Super-Kamiokande |
| المؤلفون: |
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, Beauchêne, 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, Périssé, 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, 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, Jesús-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, Peña-Garay, C, Pérez, J, Gileva, O, Lee, E.K, Leonard, D.S, Sakakieda, Y, Sakaguchi, A, Sueki, K, Takaku, Y, Yamasaki, S |
| المساهمون: |
Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Super-Kamiokande |
| المصدر: |
Nucl.Instrum.Meth.A ; https://hal.science/hal-04560698Test ; Nucl.Instrum.Meth.A, 2024, 1065, pp.169480. ⟨10.1016/j.nima.2024.169480⟩ |
| بيانات النشر: |
HAL CCSD |
| سنة النشر: |
2024 |
| المجموعة: |
HAL-IN2P3 (Institut national de physique nucléaire et de physique des particules) |
| مصطلحات موضوعية: |
n: capture, muon: cosmic radiation, efficiency, KAMIOKANDE, gadolinium: admixture, background: radioactivity, calibration, quality: monitoring, screening, measurement methods, activity report, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
| الوصف: |
International audience ; 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 $\rm Gd_2(\rm SO_4)_3\cdot \rm 8H_2O$ was additionally loaded into Super-Kamiokande (SK) from May 31 to July 4, 2022. As the amount of loaded $\rm Gd_2(\rm SO_4)_3\cdot \rm 8H_2O$ was doubled compared to the first loading, the capacity of the powder dissolving system was doubled. We also developed new batches of gadolinium sulfate with even further reduced radioactive impurities. In addition, a more efficient screening method was devised and implemented to evaluate these new batches of $\rm Gd_2(\rm SO_4)_3\cdot \rm 8H_2O$. Following the second loading, the Gd concentration in SK was measured to be $333.5\pm2.5$ ppm via an Atomic Absorption Spectrometer (AAS). From the mean neutron capture time constant of neutrons from an Am/Be calibration source, the Gd concentration was independently measured to be 332.7 $\pm$ 6.8(sys.) $\pm$ 1.1(stat.) ppm, consistent with the AAS result. Furthermore, during the loading the Gd concentration was monitored continually using the capture time constant of each spallation neutron produced by cosmic-ray muons,and the final neutron capture efficiency was shown to become 1.5 times higher than that of the first loaded phase, as expected. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
English |
| العلاقة: |
info:eu-repo/semantics/altIdentifier/arxiv/2403.07796; hal-04560698; https://hal.science/hal-04560698Test; ARXIV: 2403.07796; INSPIRE: 2767878 |
| DOI: |
10.1016/j.nima.2024.169480 |
| الإتاحة: |
https://doi.org/10.1016/j.nima.2024.169480Test
https://hal.science/hal-04560698Test |
| رقم الانضمام: |
edsbas.CA279C14 |
| قاعدة البيانات: |
BASE |
