Present status of the JAEA-AMS-TONO (2022FY)

Fujita, Natsuko; Miyake, Masayasu; Matsubara, Akihiro*; Ishii, Masahiro*; Watanabe, Takahiro; Jinno, Satoshi; Nishio, Tomohiro*; Ogawa, Yumi; Kimura, Kenji; Shimada, Akiomi; et al.

Dai-35-Kai Tandemu Kasokuki Oyobi Sono Shuhen Gijutsu No Kenkyukai Hokokushu, p.17 - 19, 2024/03

The JAEA-AMS-TONO facility at the Tono Geoscience Center, JAEA has three accelerator mass spectrometers. We report the present status of the JAEA-AMS-TONO.

PSTEP: Project for solar-terrestrial environment prediction

Kusano, Kanya*; Ichimoto, Kiyoshi*; Ishii, Mamoru*; Miyoshi, Yoshizumi*; Yoden, Shigeo*; Akiyoshi, Hideharu*; Asai, Ayumi*; Ebihara, Yusuke*; Fujiwara, Hitoshi*; Goto, Tadanori*; et al.

Earth, Planets and Space (Internet), 73(1), p.159_1 - 159_29, 2021/12

https://doi.org/10.1186/s40623-021-01486-1

The PSTEP is a nationwide research collaboration in Japan and was conducted from April 2015 to March 2020, supported by a Grant-in-Aid for Scientific Research on Innovative Areas from the Ministry of Education, Culture, Sports, Science and Technology of Japan. It has made a significant progress in space weather research and operational forecasts, publishing over 500 refereed journal papers and organizing four international symposiums, various workshops and seminars, and summer school for graduate students at Rikubetsu in 2017. This paper is a summary report of the PSTEP and describes the major research achievements it produced.

Quantum magnetisms in uniform triangular lattices LiMoO ( = In, Sc)

Iida, Kazuki*; Yoshida, Hiroyuki*; Okabe, Hirotaka*; Katayama, Naoyuki*; Ishii, Yuto*; Koda, Akihiro*; Inamura, Yasuhiro; Murai, Naoki; Ishikado, Motoyuki*; Kadono, Ryosuke*; et al.

Scientific Reports (Internet), 9(1), p.1826_1 - 1826_9, 2019/02

https://doi.org/10.1038/s41598-018-36123-7

Development for simultaneous imaging of multi-element dynamics in a plant body

Kawachi, Naoki; Suzui, Nobuo; Ishii, Satomi; Yin, Y.-G.; Yamaguchi, Mitsutaka; Nagao, Yuto; Kamiya, Tomihiro; Takahashi, Tadayuki*; Nakano, Takashi*; Fujimaki, Shu

no journal, , 

no abstracts in English

Strawberry seeds drive carbon translocation to the fruit

Miyoshi, Yuta*; Kurita, Keisuke; Nagao, Yuto*; Yamaguchi, Mitsutaka*; Suzui, Nobuo*; Yin, Y.-G.*; Ishii, Satomi*; Kawachi, Naoki*; Hidaka, Kota*; Yoshida, Eiji*; et al.

no journal, , 

no abstracts in English

The 300kV multi-element AMS system at the TONO Geoscience Center, JAEA; First performance report

Fujita, Natsuko; Miyake, Masayasu; Matsubara, Akihiro*; Ishii, Masahiro*; Takahashi, Yuto*; Nishio, Tomohiro*; Ogawa, Yumi; Shimada, Akiomi; Shimada, Koji

no journal, , 

In the Tono Geoscience Center, Japan Atomic Energy Agency, There are two AMS systems (JAEA-AMS-TONO-5MV and JAEA-AMS-TONO-300kV). This presentation will compare the differences between the JAEA-AMS-TONO-5MV and JAEA-AMS-TONO-300kV. In particular, we will discuss extraction voltage of the ion source, relationship between terminal voltage and charge states, transmission, difference in cathode shape, and so on.

Calculation for radioactivity conversion factors of the scintillation gas monitor used for measurement of short-lived gas nuclides produced in the hot cell of MLF at J-PARC

Sakashita, Koichi; Arakawa, Yuto; Kasugai, Yoshimi; Ishii, Tetsuro

no journal, , 

Radioactive concentration of short-lived gas nuclides produced via air activation by neutron in the hot-cell was measured using a plastic scintillator gas monitor in Materials and Life Science Experimental Facility at J-PARC. However, conversion factors (CF), the ratio of radioactive concentration to count rate, had been unknown for the short-lived nuclides of C, N and O. Therefore we evaluated them with Monte Carlo method using Geant4. As a result, the CF's were shown to be almost constant in the energy region of -rays emitted from these short-lived nuclides and Ar. Then we adopted the CF of Ar, which is certified by the vendor, as those of the short-lived nuclides.