Ⅱ-3. Nuclear Data
RIKEN
Accel. Prog. Rep. 56 (2023)

RIKEN Accel. Prog. Rep. 56 (2023)

EXFOR compilation of RIBF data in 2022
S. Shin,∗1 S. Watanabe,∗1 M. Kimura,∗2,∗3 M. Aikawa,∗2,∗3 and N. Otuka∗4,∗3
Nuclear databases are crucial for providing the best
estimates of nuclear reactions to a wide range of data
users in various scientiﬁc and related ﬁelds. Amongthem, nuclear reaction data support the most important aspects of nuclear technology (nuclear power generation, nuclear fuel cycle, environmental monitoring,dosimetry, radiation safety, radioisotope production,radiation therapy, medical diagnosis, etc.) and science(nuclear physics, nuclear chemistry, geophysics, spacephysics, etc.).
The EXFOR library (EXchange FORmat for experimental nuclear reaction data) is the largest and mostglobally used publicly available database.1) It is maintained by the International Network of Nuclear Reaction Data Centers (NRDC) under the auspices of theInternational Atomic Energy Agency (IAEA).2) The
scope of the EXFOR library covers a wide range ofnuclear reactions such as neutron-induced, chargedparticle, and photon-induced reactions.
The Hokkaido University Nuclear Reaction Data
Center (JCPRG)3) was established in 1973 and joined
NRDC in 1975 as the ﬁrst member from Asian countries. The JCPRG is responsible for compiling nuclear
reaction data with charged particles and photons measured at Japanese facilities,4) and its contribution tothe EXFOR database amounts to approximately 10%of the total database. The database compilation process begins with scanning of peer-reviewed journal papers published within the scope of EXFOR. Subsequently selected papers are assigned to unique entry
numbers and entered into the EXFOR library, where
the editorial progress can be monitored. Bibliographic
information, experimental equipment, physical quantities measured, numerical data measured, and error
information are extracted and entered into a single EXFOR entry. During this process, we communicate withthe authors, asking questions regarding the content of
their paper, and requesting numerical data.
Aiming to increase the availability of RIBF data,
JCPRG has been compiling data obtained from RIBF
since 2010 in cooperation with the RIKEN Nishina
Center. The new EXFOR data related to RIBF experiment are as follows. We have compiled 40 new papers and revised 3 old entries, of which 17 were fromRIKEN; 17 new papers. We can access these data
based on the entry numbers presented in Table 1.
Collaboration with RIKEN has aided in the establishment of an eﬃcient procedure for compilation.
Much of the RIKEN data was compiled soon after the∗1
∗2
∗3
∗4

publication of the papers, allowing for smooth accessby end users. We are also grateful to the authors of theRIKEN papers who have provided us with numericaldata. This has greatly helped to improve the accuracy
and quality of the database.
Table 1. Entry numbers with references compiled fromRIBF data in 2022.

NewTotal

E26205)
E26858)
E269311)
E270314)
E271217)
E272220)

Entries
E26596)
E26879)
E269712)
E270415)
E271318)
E272321)
17E26827)
E268910)
E269813)
E270516)
E271519)

We would like to take this opportunity to express
our thanks to the authors of these papers for their kindcooperation with the EXFOR compilation process.
References1) N. Otuka et al., Nucl. Data Sheets 120, 272 (2014).
2) IAEA
Nuclear
DataServices,
https://www-nds.iaea.org/ .
3) Hokkaido University Nuclear Reaction Data Centre,
https://www.jcprg.org/ .
4) M. Kimura, AAPPS Bulletin 28, 24 (2018).
5) S. Wimmer et al., Phys. Lett. B 785, 441 (2018).
6) A. Frotscher et al., Phys. Rev. Lett. 125, 012501(2020).
7) Z. Tsoodolés et al., Appl. Radiat. Isot 168, 109448(2021).
8) H. Suzuki et al., Phys. Rev. C 102, 064615 (2020).
9) L. Yang et al., Phys. Lett. B 813, 136045 (2021).
10) Z. H. Yang et al., Phys. Rev. Lett. 126, 082501 (2021).
11) M. Aikawa et al., Nucl. Instrum. Methods Phys. Res.
B 498, 23 (2021).
12) D. Ichinkhorloo et al., Nucl. Instrum. Methods Phys.
Res. B 499, 46 (2021).
13) M. M. Juhasz et al., Phys. Lett. B 814, 136108 (2021).
14) M. Sakaguchi et al., Appl. Radiat. Isot 176, 109826(2021).
15) M. M. Juhasz et al., Phys. Rev. C 103, 064308 (2021).
16) D. Bazin et al., Phys. Rev. C 103, 064318 (2021).
17) H. Suzuki et al., Nucl. Instrum. Methods Phys. Res. B
317, 756 (2013).
18) F. Browne et al., Phys. Rev. Lett. 126, 252501 (2021).
19) M. Aikawa et al., Nucl. Instrum. Methods Phys. Res.
B 508, 29 (2021).
20) M. Aikawa et al., Nucl. Instrum. Methods Phys. Res.
B 515, 1 (2022).
21) K. Sugihara et al., Nucl. Instrum. Methods Phys. Res.
B 512, 102 (2022).

Graduate School of Science, Hokkaido University
Faculty of Science, Hokkaido University
RIKEN Nishina Center
Nuclear Data Section, International Atomic Energy Agency- 43 -