Article
Physics, Applied
Hongjia Song, Yingdong Liu, Jiaqi Yan, Xiangli Zhong, Jinbin Wang, Hongxia Guo
Summary: The performance degradation of a TiO2-film-based RRAM was investigated under proton irradiation. The results showed that the resistance of the high-resistance state (HRS) decreased with increasing proton fluence, while the resistance of the low-resistance state (LRS) remained constant. The decrease in HRS resistance and SET voltage was attributed to radiation-induced oxygen vacancies and non-lattice oxygen. A mathematical model based on the Voltage Threshold Adaptive Memristor model was constructed to describe the variation in RRAM resistance and voltage with proton irradiation, which agreed well with the experimental results.
APPLIED PHYSICS LETTERS
(2023)
Article
Physics, Multidisciplinary
Kazuya Harii, Maki Umeda, Hiroki Arisawa, Tomosato Hioki, Nana Sato, Satoru Okayasu, Junichi Ieda
Summary: The modification of magnetic properties in an easy-plane magnetic insulator due to the accumulation of nanocolumnar defects was studied through numerical simulations and heavy-ion beam irradiation experiments. Micromagnetic simulations revealed the formation of fragmented ferromagnetic domains depending on the density of nonmagnetic nanocolumnar defects, resulting in enhanced magnetic coercivity and reduced magnetization. Experimental results using gold ion irradiation on bismuth-doped lutetium iron garnet (Bi:LuIG) films confirmed the predictions, showing changes in saturation magnetization and magnetic coercivity. These findings suggest that irradiation can be a potential method for microstructuring magnetic insulators based on control of beam fluence.
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
(2023)
Article
Nuclear Science & Technology
Ting Wang, Xiaolei Ma, Jipeng Zhu, Shiwei Wang, Yue Yuan, Long Cheng, Peng Zhang, Yuan Gao, Xing-Zhong Cao, Guang-Hong Lu
Summary: This study investigates the irradiation hardening and deuterium retention behavior of tungsten under synergistic irradiations of heavy ions and D plasma. The results show that heavy ion irradiation creates vacancy-type defects and dislocation loops/networks, resulting in irradiation hardening. The interaction between dislocations and damage-induced defects is suggested to be the main source of irradiation hardening. Additionally, the total deuterium retention is increased in the case of pre-irradiation with Fe ions.
NUCLEAR MATERIALS AND ENERGY
(2023)
Article
Materials Science, Ceramics
Huan Liu, Haibo Wu, Huihui Zhang, Ming Yuan, Jian Chen, Zhongming Chen, Xuejian Liu, Zhengren Huang
Summary: Highly densified SiC ceramics were fabricated by synthesizing single-phase Al4SiC4 powder with low neutron absorption cross section and mixing it with SiC powder, followed by hot pressing. The densification of the ceramics was greatly enhanced by the decomposition of Al4SiC4 and the formation of aluminosilicate liquid phase during sintering. The resulting SiC ceramics exhibited fine equiaxed grains and excellent mechanical properties.
CERAMICS INTERNATIONAL
(2022)
Article
Instruments & Instrumentation
F. Saito, Y. Matsuda, S. Umemoto, N. Yamasaki, M. Itoh, J. Zenihiro, M. Dozono, Y. Hijikata, S. Terashima, T. Harada, H. Sakaguchi, S. Ota, A. Kohda, Y. Maeda, T. Kawabata
Summary: We developed an N2 gas scintillation counter for particle identification of radioactive isotope beams. Continuous flow of N2 gas prevents radiation damage from high-intensity heavy ion beams. The detector, filled with N2 gas at approximately 100 kPa, has sufficient detection efficiency, intrinsic time resolution, and short decay time. It is also effective for particle identification.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
(2023)
Article
Crystallography
Igor A. Ivanov, Ruslan M. Rspayev, Aset D. Sapar, Daulet A. Mustafin, Maxim V. Zdorovets, Artem L. Kozlovskiy
Summary: This study synthesized CeO2 microparticles doped with Y2O3 through solid-phase synthesis, and found that increasing the dopant concentration improved crystallinity, decreased dislocation density, and enhanced radiation resistance of the microparticles.
Article
Materials Science, Ceramics
Yiwen Liu, Yabin Zhu, Tielong Shen, Jianlong Chai, Lijuan Niu, Shufen Li, Peng Jin, Hai Zheng, Zhiguang Wang
Summary: The dense Al2O3-ZrO2 ceramic composite prepared by spark plasma sintering was irradiated by 500 keV He ions, leading to the formation of ribbon-like helium bubbles and microcracks. While evident structural changes were observed, full amorphization was not achieved at high ion fluence. The degradation of mechanical properties in the irradiated composite is mainly attributed to the formation of ribbon-like bubbles and microcracks.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Nuclear Science & Technology
Y. H. Kim, B. Davids, M. Williams, K. H. Hudson, S. Upadhyayula, M. Alcorta, P. Machule, N. E. Esker, C. J. Griffin, J. Williams, D. Yates, A. Lennarz, C. Angus, G. Hackman, D. G. Kim, J. Son, J. Park, K. Pak, Y. K. Kim
Summary: This study analyzes the cause of destruction of thin, carbon-backed lithium fluoride targets during the fusion measurement of 7Li and 17O. The lifetimes of carbon and LiF films due to sputtering, thermal evaporation, and lattice damage are estimated theoretically and compared with the experimental results. The results show that sputtering and thermal evaporation do not significantly contribute to the destruction of the targets, and the target lifetime is mainly affected by lattice damage. The study provides methods to predict the lifetime of the LiF film and optimize the experimental plan for maximum efficiency in nuclear reaction experiments using thin LiF targets.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
M. Karlusic, M. Micetic, M. Kresic, M. Jaksic, B. Santic, I. Bogdanovic-Radovic, S. Bernstorff, H. Lebius, B. Ban-d'Etat, K. Zuzek Rozman, J. H. O'Connell, U. Hagemann, M. Schleberger
Summary: The study demonstrates that by tuning ion energy and fluence, different surface nanopattern morphologies like individual chains of nanohillocks, nanostripes, or nanoscaled ripples can be selected. Chemical etching can be used to create a negative replica of the nanopattern, while thermal annealing in vacuum can remove the surface track, offering new ways for achieving control over nanoscale surface modifications using swift heavy ion beams.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Ceramics
Yabin Zhu, Jianlong Chai, Tielong Shen, Lijuan Niu, Yiwen Liu, Peng Jin, Minghuan Cui, Yucheng Feng, Liangting Sun, Zhiguang Wang
Summary: In this study, Al2O3-ZrO2-SiC ceramic composites were irradiated with 2.0 MeV He ions. The results showed that no amorphization of the material was observed up to a fluence of 1.72 x 10^18 ions/cm^2, indicating excellent radiation resistance.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Nuclear Science & Technology
Li-Ke Liu, Hua Pei, Ya-Ping Wang, Biao Zhang, Nu Xu, Shu-Su Shi
Summary: The Cooling Storage Ring external-target experiment (CEE) uses a spectrometer to study nuclear matter in heavy-ion collisions and aims to understand the phase structure of quantum chromodynamics in high-baryon-density region. Collective flow is used as a probe to evaluate the properties of the media during these collisions. The zero-degree calorimeter (ZDC) in the CEE plays a crucial role in determining the reaction plane, which is important for measuring the collective flow and other related analyses. This paper presents the procedures for event plane determination using the ZDC and provides predictions of the rapidity dependence of directed and elliptical flows based on an isospin-dependent quantum molecular dynamics model in 2.1 GeV U + U collisions.
NUCLEAR SCIENCE AND TECHNIQUES
(2023)
Article
Nuclear Science & Technology
F. Sun, D. Y. Chen, C. Hao, Y. Oya, J. P. Zhu, D. D. Li, L. M. Luo, Y. C. Wu
Summary: In a fusion reactor, it is important to accurately evaluate the irradiation damage caused by high-energy particles on plasma-facing materials. This study used the SRIM code and molecular dynamics simulations to evaluate the irradiation damage of tungsten. Different atomic displacement calculation models and computational modes were compared and analyzed. The results show that the arc-dpa model under the K-P mode is recommended for accurately and quickly calculating the irradiation damage level.
FUSION ENGINEERING AND DESIGN
(2023)
Article
Physics, Multidisciplinary
P. Senger
Summary: FAIR, a international accelerator centre under construction in Germany, will provide primary and secondary beams for unique research in nuclear astrophysics and high-density matter. The CBM experiment at FAIR will focus on collisions between heavy nuclei and measuring diagnostic probes sensitive to high-density equations-of-state and microscopic degrees-of-freedom of matter.
Article
Materials Science, Multidisciplinary
Lisong Zhang, Xiaonan Zhang, Na Li, Xianxiu Mei, Xiaona Li, Younian Wang, Xingzhong Cao, Sergey K. Pavlov, Gennady E. Remnev, Vladimir V. Uglov, Eryang Lu
Summary: In recent years, high entropy alloys have gained attention for their excellent properties and resistance to irradiation, making them potential candidates for structural applications. This study investigated the effects of thermal shock irradiation on CoCrFeMnNi HEA and found that it maintained its structure and showed good thermal stability and irradiation resistance.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Chemistry, Physical
Asha Panghal, Yogendra Kumar, P. K. Kulriya, Parasharam M. Shirage, N. L. Singh
Summary: This study demonstrates that the structural properties of La2Zr2O7 are significantly impacted by the irradiation temperature and ion fluence during ion irradiation. At lower temperatures, the degradation of crystallinity becomes more pronounced with an increase in ion fluence.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Instruments & Instrumentation
Y. Shimizu, N. Fukuda, H. Takeda, H. Suzuki, D. S. Ahn, N. Inabe, K. Kusaka, M. Ohtake, Y. Yanagisawa, K. Yoshida, T. Sumikama, T. Kuboba
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
(2020)
Article
Instruments & Instrumentation
T. Aoyagi, Y. Honda, H. Ikeda, M. Ikeno, K. Kawagoe, T. Kohriki, T. Kume, T. Mibe, K. Namba, S. Nishimura, N. Saito, O. Sasaki, N. Sato, Y. Sato, H. Sendai, K. Shimomura, S. Shirabe, M. Shoji, T. Suda, T. Suehara, T. Takatomi, M. Tanaka, J. Tojo, K. Tsukada, T. Uchida, T. Ushizawa, H. Wauke, T. Yamanaka, T. Yoshioka
JOURNAL OF INSTRUMENTATION
(2020)
Article
Physics, Multidisciplinary
K. J. Cook, T. Nakamura, Y. Kondo, K. Hagino, K. Ogata, A. T. Saito, N. L. Achouri, T. Aumann, H. Baba, F. Delaunay, Q. Deshayes, P. Doomenbal, N. Fukuda, J. Gibelin, J. W. Hwang, N. Inabe, T. Isobe, D. Kameda, D. Kanno, S. Kim, N. Kobayashi, T. Kobayashi, T. Kubo, S. Leblond, J. Lee, F. M. Marques, R. Minakata, T. Motobayashi, K. Muto, T. Murakami, D. Murai, T. Nakashima, N. Nakatsuka, A. Navin, S. Nishi, S. Ogoshi, N. A. Orr, H. Otsu, H. Sato, Y. Satou, Y. Shimizu, H. Suzuki, K. Takahashi, H. Takeda, S. Takeuchi, R. Tanaka, Y. Togano, J. Tsubota, A. G. Tuff, M. Vandebrouck, K. Yoneda
PHYSICAL REVIEW LETTERS
(2020)
Article
Instruments & Instrumentation
J. S. Winfield, H. Geissel, B. Franczak, T. Dickel, E. Haettner, E. Kazantseva, T. Kubo, S. Litvinov, W. R. Plass, S. Ratschow, C. Scheidenberger, Y. K. Tanaka, H. Weick, M. Winkler, M. Yavor
Summary: The future Super-FRS separator-spectrometer at FAIR will provide rare-isotope beams for key experiments in nuclear structure, astrophysics and nuclear reactions. The large-aperture magnets used in the Super-FRS are crucial for accepting nuclear reaction products with large transverse and longitudinal emittance. New ion-optical developments are introduced for various categories of experiments, in addition to the standard ion-optical separator mode.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
(2021)
Article
Astronomy & Astrophysics
H. Watanabe, C. X. Yuan, G. Lorusso, S. Nishimura, Z. Y. Xu, T. Sumikama, P-A Soderstrom, P. Doornenbal, F. Browne, G. Gey, H. S. Jung, J. Taprogge, Zs Vajta, H. K. Wang, J. Wu, A. Yagi, H. Baba, G. Benzoni, K. Y. Chae, F. C. L. Crespi, N. Fukuda, R. Gernhauser, N. Inabe, T. Isobe, A. Jungclaus, D. Kameda, G. D. Kim, Y. K. Kim, I Kojouharov, F. G. Kondev, T. Kubo, N. Kurz, Y. K. Kwon, G. J. Lane, Z. Li, C-B Moon, A. Montaner-Piza, K. Moschner, F. Naqvi, M. Niikura, H. Nishibata, D. Nishimura, A. Odahara, R. Orlandi, Z. Patel, Zs Podolyak, H. Sakurai, H. Schaffner, G. S. Simpson, K. Steiger, H. Suzuki, H. Takeda, A. Wendt, K. Yoshinaga
Summary: This study investigates the impact of nuclear shell evolution on Gamow-Teller transitions, focusing on the experimental data of a long-lived isomer in Ag-127, which decays through internal transitions competing with high-spin states in Cd-127. The strong GT transition from the Ag-127 isomer is discussed in terms of configuration-dependent optimization of effective single-particle energies.
Article
Astronomy & Astrophysics
A. Vitez-Sveiczer, A. Algora, A. Morales, B. Rubio, G. G. Kiss, P. Sarriguren, P. Van Isacker, G. de Angelis, F. Recchia, S. Nishimura, J. Agramunt, V Guadilla, A. Montaner-Piza, S. E. A. Orrigo, A. Horvath, D. Napoli, S. Lenzi, A. Boso, V. H. Phong, J. Wu, P-A Soderstrom, T. Sumikama, H. Suzuki, H. Takeda, D. S. Ahn, H. Baba, P. Doornebal, N. Fukuda, N. Inabe, T. Isobe, T. Kubo, S. Kubono, H. Sakurai, Y. Shimizu, C. Sidong, B. Blank, P. Ascher, M. Gerbaux, T. Goigoux, J. Giovinazzo, S. Grevy, T. Kurtukian Nieto, C. Magron, W. Gelletly, Zs Dombradi, Y. Fujita, M. Tanaka, P. Aguilera, F. Molina, J. Eberth, F. Diel, D. Lubos, C. Borcea, E. Ganioglu, D. Nishimura, H. Oikawa, Y. Takei, S. Yagi, W. Korten, G. de France, P. Davies, J. Liu, J. Lee, T. Lokotko, I Kojouharov, N. Kurz, H. Shaffner, A. Petrovici
Summary: The beta-decay of the even-even nucleus Kr-70 with Z=N+2 was investigated, and fifteen gamma-rays associated with the beta-decay were identified for the first time. The half-life of Kr-70 and the beta-delayed proton emission probability were determined with increased precision. The study observed an increase in the beta-strength to the yrast 1(+) state, indicating potential increased np correlations in the T=0 channel.
Article
Physics, Multidisciplinary
D. S. Ahn, J. Amano, H. Baba, N. Fukuda, H. Geissel, N. Inabe, S. Ishikawa, N. Iwasa, T. Komatsubara, T. Kubo, K. Kusaka, D. J. Morrissey, T. Nakamura, M. Ohtake, H. Otsu, T. Sakakibara, H. Sato, B. M. Sherrill, Y. Shimizu, T. Sumikama, H. Suzuki, H. Takeda, O. B. Tarasov, H. Ueno, Y. Yanagisawa, K. Yoshida
Summary: The most neutron-rich sodium nucleus observed so far, 39Na, was discovered at the RIKEN Nishina Center Radioactive Isotope Beam Factory. The study confirms the particle stability of 39Na and provides new key information for understanding nuclear binding and structure under extremely neutron-rich conditions. This discovery has significant implications for nuclear models and theories predicting the neutron dripline and sheds light on the nuclear shell property of 39Na at the neutron number N = 28.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Nuclear
A. Yagi, A. Odahara, H. Nishibata, R. Lozeva, C-B Moon, S. Nishimura, K. Yoshida, N. Yoshinaga, C. Watanabe, K. Higashiyama, T. Shimoda, R. Daido, Y. Fang, P. S. Lee, B. Moon, P. Doornenbal, G. Lorusso, P-A Soderstrom, T. Sumikama, H. Watanabe, T. Isobe, H. Baba, H. Sakurai, F. Browne, Z. Patel, S. Rice, L. Sinclair, J. Wu, Z. Y. Xu, R. Yokoyama, T. Kubo, N. Inabe, H. Suzuki, N. Fukuda, D. Kameda, H. Takeda, D. S. Ahn, Y. Shimizu, D. Murai, F. L. Bello Garrote, J-M Daugas, F. Didierjean, E. Ideguchi, S. Iimura, T. Ishigaki, H. S. Jung, T. Komatsubara, Y. K. Kwon, C. S. Lee, S. Morimoto, M. Niikura, I Nishizuka, K. Tshoo
Summary: The structure of the neutron-rich N = 86 isotope Xe-140 was investigated using beta-gamma spectroscopy, revealing two new beta-decay isomers. Comparisons between experimental results and theoretical calculations were made to discuss the nuclear structures of low-lying states in Xe-140.
Article
Physics, Nuclear
B. Moon, A. Gargano, H. Naidja, C-B Moon, A. Odahara, R. Lozeva, S. Nishimura, C. Yuan, F. Browne, P. Doornenbal, G. Lorusso, Z. Patel, S. Rice, M. Si, L. Sinclair, P-A Soderstrom, T. Sumikama, H. Watanabe, J. Wu, Z. Y. Xu, A. Yagi, D. S. Ahn, H. Baba, F. L. Bello Garrote, R. Daido, J. M. Daugas, F. Didierjean, Y. Fang, N. Fukuda, B. Hong, E. Ideguchi, N. Inabe, T. Ishigaki, T. Isobe, H. S. Jung, D. Kameda, I Kojouharov, T. Komatsubara, T. Kubo, Y. K. Kwon, C. S. Lee, P. Lee, S. Morimoto, D. Murai, M. Niikura, H. Nishibata, I Nishizuka, H. Sakurai, Y. Shimizu, H. Suzuki, H. Takeda, K. Tshoo, R. Yokoyama
Summary: The beta decay scheme of Te-138 and the level structure of I-138 have been reported for the first time. The experiment revealed new spin and parity assignments for I-138 based on the beta decay of Te-138. Calculation based on shell-model theory was used to discuss the proton-neutron interactions and Gamow-Teller transition strength in I-138.
Article
Physics, Nuclear
A. Kubiela, H. Suzuki, O. B. Tarasov, M. Pfutzner, D. -S. Ahn, H. Baba, A. Bezbakh, A. A. Ciemny, W. Dominik, N. Fukuda, A. Giska, R. Grzywacz, Y. Ichikawa, Z. Janas, L. Janiak, G. Kaminski, K. Kawata, T. Kubo, M. Madurga, C. Mazzocchi, H. Nishibata, M. Pomorski, Y. Shimizu, N. Sokolowska, D. Suzuki, P. Szymkiewicz, A. Swiercz, M. Tajim, A. Takamine, H. Takeda, Y. Takeuchi, C. R. Thornsberry, H. Ueno, H. Yamazaki, R. Yokoyama, K. Yoshida
Summary: The cross sections for the production of neutron-deficient zinc isotopes Zn54-56 from Kr-78 projectile fragmentation on a beryllium target at 345 MeV/nucleon were measured. Despite being smaller than those obtained with a Ni-58 beam on a nickel target, the reaction product rates were found to be larger in the case of high-energy Kr-78 fragmentation. The experimental cross sections were analyzed using the abrasion-ablation model and a particular variant of the Hartree-Fock-Bogoliubov mass model, showing a very good agreement with the data. Perspectives for observing more exotic isotopes in this region were discussed in relation to 2p radioactivity.
Article
Physics, Nuclear
R. Yokoyama, E. Ideguchi, G. S. Simpson, Mn Tanaka, Yang Sun, Cui-Juan Lv, Yan-Xin Liu, Long-Jun Wang, S. Nishimura, P. Doornenbal, G. Lorusso, P-A Soderstrom, T. Sumikama, J. Wu, Z. Y. Xu, N. Aoi, H. Baba, F. L. Bello Garrote, G. Benzoni, F. Browne, R. Daido, Y. Fang, N. Fukuda, A. Gottardo, G. Gey, S. Go, S. Inabe, T. Isobe, D. Kameda, K. Kobayashi, M. Kobayashi, I Kojouharov, T. Komatsubara, T. Kubo, N. Kurz, I Kuti, Z. Li, M. Matsushita, S. Michimasa, C. B. Moon, H. Nishibata, I Nishizuka, A. Odahara, Z. Patel, S. Rice, E. Sahin, H. Sakurai, H. Schaffner, L. Sinclair, H. Suzuki, H. Takeda, J. Taprogge, Zs Vajta, H. Watanabe, A. Yagi
Summary: Neutron-rich Pm isotopes were studied by delayed gamma-ray spectroscopy, revealing isomeric gamma decays with distinct quasiparticle excitations. A projected shell model calculation highlighted the importance of modifying Nilsson parameters to understand the properties of neutron-rich rare-earth nuclei around A = 165. This study also provided new evidence supporting the existence of the deformed N = 98 subshell gap in odd-mass nuclei.
Article
Physics, Nuclear
B. Moon, A. Jungclaus, H. Naidja, A. Gargano, R. Lozeva, C-B Moon, A. Odahara, G. S. Simpson, S. Nishimura, F. Browne, P. Doornenbal, G. Gey, J. Keatings, G. Lorusso, Z. Patel, S. Rice, M. Si, L. Sinclair, P-A Soderstrom, T. Sumikama, J. Taprogge, H. Watanabe, J. Wu, Z. Y. Xu, A. Yagi, D. S. Ahn, H. Baba, F. L. Bello Garrote, S. Boenig, R. Daido, J. M. Daugas, F. Didierjean, F. Drouet, Y. Fang, N. Fukuda, R. Gernhaeuser, B. Hong, E. Ideguchi, S. Ilieva, N. Inabe, T. Ishigaki, T. Isobe, H. S. Jung, D. Kameda, I Kojouharov, T. Komatsubara, T. Kroell, T. Kubo, N. Kurz, Y. K. Kwon, C. S. Lee, P. Lee, Z. Li, A. Montaner-Piza, S. Morimoto, K. Moschner, D. Muecher, D. Murai, M. Niikura, H. Nishibata, I Nishizuka, R. Orlandi, H. Sakurai, H. Schaffner, Y. Shimizu, K. Steiger, H. Suzuki, H. Takeda, K. Tshoo, Zs Vajta, A. Wendt, R. Yokoyama, K. Yoshinaga
Summary: New decay schemes of Sb-137 and Sb-138 were observed, produced by the in-flight fragmentation of a U-238 primary beam. The study of Te-137 and Te-138 led to important contributions in the evolution of neutron levels beyond N=82.
Article
Physics, Nuclear
T. Sumikama, N. Fukuda, N. Inabe, D. Kameda, T. Kubo, Y. Shimizu, H. Suzuki, H. Takeda, K. Yoshida, H. Baba, F. Browne, A. M. Bruce, R. Carroll, N. Chiga, R. Daido, F. Didierjean, P. Doornenbal, Y. Fang, G. Gey, E. Ideguchi, T. Isobe, S. Lalkovski, Z. Li, G. Lorusso, R. Lozeva, H. Nishibata, S. Nishimura, I Nishizuka, A. Odahara, Z. Patel, Zs Podolyak, P. H. Regan, S. Rice, O. J. Roberts, H. Sakurai, G. S. Simpson, L. Sinclair, P-A Soderstrom, M. Tanaka, J. Taprogge, H. Watanabe, V Werner, O. Wieland, J. Wu, Z. Y. Xu, A. Yagi
Summary: Neutron-rich radioactive isotopes beams near Zr-110 were produced through in-flight fission, successfully separated using particle identification techniques. Nine new isotopes were reported for the first time, with their production cross sections compared to lighter isotopes.
Article
Physics, Nuclear
S. E. A. Orrigo, B. Rubio, W. Gelletly, P. Aguilera, A. Algora, A. Morales, J. Agramunt, D. S. Ahn, P. Ascher, B. Blank, C. Borcea, A. Boso, R. B. Cakirli, J. Chiba, G. de Angelis, G. de France, F. Diel, P. Doornenbal, Y. Fujita, N. Fukuda, E. Ganioglu, M. Gerbaux, J. Giovinazzo, S. Go, T. Goigoux, S. Grevy, V Guadilla, N. Inabe, G. G. Kiss, T. Kubo, S. Kubono, T. Kurtukian-Nieto, D. Lubos, C. Magron, F. Molina, A. Montaner-Piza, D. Napoli, D. Nishimura, S. Nishimura, H. Oikawa, V. H. Phong, H. Sakurai, Y. Shimizu, C. Sidong, P-A Soderstrom, T. Sumikama, H. Suzuki, H. Takeda, Y. Takei, M. Tanaka, J. Wu, S. Yagi
Summary: In this study, the beta decay of the proton-rich Ge isotopes, Ge-60 and Ge-62, was investigated, revealing detailed information on their half-lives, beta-delayed proton and gamma emissions, branching ratios, decay schemes, and transition strengths. New data on the energy levels of Ga-60 and the excited state in the Zn-59 daughter nucleus were obtained, along with insights into the mass excesses of the nuclei under study. The results also include the determination of the branching ratios and feeding probabilities for the decay processes studied.
Proceedings Paper
Astronomy & Astrophysics
Toshimi Suda
27TH INTERNATIONAL NUCLEAR PHYSICS CONFERENCE (INPC2019)
(2020)
Article
Instruments & Instrumentation
Jinlu Ruan, Liang Chen, Pengxiao Xu, Yapeng Zhang, Xue Du, Hongqiao Yin, Shiyi He, Fangbao Wang, Xun Zhang, Xiaoping Ouyang
Summary: A new SiC detector with a faster time response was developed to improve the temporal response of SiC-HPMTs. The improved SiC-HPMT showed significantly enhanced temporal response compared to the previous SiC-HPMT, and it can accurately measure the time information of fast pulsed radiation fields.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Kevin Nash
Summary: This article discusses the need for extensive upgrades of the LHC detectors, particularly the Outer Tracker, due to the demanding conditions and radiation of the High Luminosity LHC scenario. The design choices, technological approaches, and R&D activities for the Outer Tracker Phase-2 upgrade are highlighted.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
S. A. Wotton
Summary: The hadron particle identification provided by LHCb's RICH system is crucial for the success of the experiment, and it will continue to play a significant role in Upgrade II. To maintain the current excellent particle identification performance, substantial improvements in the precision of measuring the space and time coordinates of detected photons in the RICH and in the resolution of the reconstructed Cherenkov angle are required.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
R. Cardarelli, A. Rocchi, G. Aielli, P. Camarri, A. Di Ciaccio, L. Di Stante, B. Liberti, E. Pastori, L. Pizzimento, G. Proto
Summary: The Resistive Cylindrical Chamber (RCC) is a new generation of gaseous particle detectors that overcome the limitations of Resistive Plate Chambers (RPC) and expand their application range. By transitioning from planar to cylindrical geometry, while maintaining an almost planar electric field, the RCC achieves improved detection efficiency, increased gas pressure, and the possibility of using eco-friendly gases.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Giacomo Volpe
Summary: The ALICE collaboration is proposing a new apparatus, ALICE 3, to investigate the Quark Gluon Plasma (QGP) properties. In this context, conceptual studies for the development of a RICH detector for ALICE 3 are ongoing. The proposed baseline layout is a proximity-focusing RICH, using aerogel as Cherenkov radiator and Silicon Photomultipliers for photon detection. The detector specifications and performance obtained by Monte Carlo simulation are presented, along with the R&D challenges related to the design.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
M. G. Mazarakis, E. Jongewaard, J. Ellsworth
Summary: This report presents experimental data and a step-by-step technique for evaluating the work functions of thermionic cathodes. The experiments were conducted using small-sized thermionic cathodes provided by Spectra-Mat corporation. The cathode electron current emission work function is emphasized as a crucial parameter for selecting cathodes in various applications.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
M. Loyd, A. Khaplanov, V. Sedov, J. Beal, T. Visscher, C. Donahue, C. Montcalm, G. Warren, R. Butz, C. Boone, C. Hart, R. Riedel, Y. Diawara
Summary: Thermal and cold neutron beamlines require detector systems with high efficiency, large active area, and good spatial resolution. This study presents a new design of Anger camera using silicon photomultipliers (SiPMs) instead of photomultiplier tubes (PMTs), offering better resolution, less distortion, and more compactness. The use of SiPMs also enables the camera to be used in strong magnetic fields, providing additional experimental capabilities.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Thomas Neulinger, Hanno Filter, Oliver Zimmer
Summary: This paper describes the mathematical foundation for analyzing vertical time-of-flight (TOF) measurements using ultracold neutrons (UCN). It enables the spectroscopy of UCN with kinetic energies below the neutron optical potential of the detector entrance window. The paper provides general treatment methods and transformation rules for converting vertical TOF spectra into other spectra of interest.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Huynh Dinh Chuong, Nguyen Huynh Duy Khang, Le Thi Ngoc Trang, Nguyen Thi Truc Linh, Truong Thanh Sang, Nguyen Thanh Dat, Hoang Duc Tam
Summary: This paper presents a comparative study of three models, including virtual point detector (VPD), curve fitting (CF), and machine learning (ML), in determining the full-energy peak efficiency (FEPE) of HPGe detector. The study found that the ML model outperforms VPD and CF models in terms of accuracy.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
M. H. Kushoro, M. Angelone, D. Bozzi, G. Gorini, F. La Via, E. Perelli Cippo, M. Pillon, M. Tardocchi, M. Rebai
Summary: This paper presents the characterization of a series of SiC detectors operated with partial polarization, achieving excellent energy resolution and detection characteristics for both alpha particles and neutrons. The results demonstrate the potential of SiC detectors for fast neutron detection in fusion experiments. The limitations and challenges for manufacturing thick SiCs in the future are also discussed.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Deb Sankar Bhattacharya, Andrea Bressan, Chandradoy Chatterjee, Silvia Dalla Torre, Mauro Gregori, Alexander Kiselev, Stefano Levorato, Anna Martin, Saverio Minutoli, Mikhail Osipenko, Richa Rai, Marco Ripani, Fulvio Tessarotto, Triloki Triloki
Summary: In this article, we report on the measurement of the time resolution of an LAPPD prototype using Cherenkov radiation emitted by high energy hadrons. Our approach has demonstrated the capability of measuring time resolutions as fine as 25-30 ps. The measured time resolution for single photoelectrons is about 80 ps r.m.s.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Bharti Rohila, S. R. Abhilash, Diwanshu, Chetan Sharma, Devinder Mehta, Ashok Kumar
Summary: Self-supporting and Au backed Ag-107 targets have been fabricated using a combination of cold rolling and e-beam melting technique. The method is efficient, resulting in targets without significant material loss or major contamination. Various techniques have been used for thickness measurements and characterizations, and one of the fabricated targets has been successfully used in a nuclear physics experiment.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
B. Kronheim, A. Belloni, T. K. Edberg, S. C. Eno, C. Howe, C. Palmer, C. Papageorgakis, M. Paranjpe, S. Sriram
Summary: This paper presents measurements of the relative decrease of light output during irradiation of small plastic scintillator tiles read out by silicon photomultipliers. The study found substantial temporary damage during low-temperature irradiation, regardless of oxygen concentration and wrapping material. The wrapping material had an impact on the relative light loss, with the 3M(TM) Enhanced Specular Reflector Film showing the largest loss. The light loss was less at warmer temperatures and similar to that in standard atmosphere with 3% oxygen concentration. Evidence of a plateau in the radical density was seen for the data at 0 degrees C.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
V. V. Haurylavets, V. K. Ivanov, A. V. Korol, A. V. Solov'yov
Summary: Computational modeling of high-energy electron passage through crystalline media is conducted using relativistic molecular dynamics. The results show good agreement with experimental data, demonstrating the accuracy of the simulations. Minor discrepancies between theory and experiment are discussed.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Luca Quaglia, R. Cardarelli, B. Liberti, E. Pastori, G. Proto, L. Pizzimento, A. Rocchi, G. Aielli, P. Camarri, A. Di Ciacco, L. Di Stante, R. Santonico, D. Boscherini, A. Bruni, L. Massa, A. Polini, M. Romano, L. Benussi, S. Bianco, D. Piccolo, G. Saviano, M. Abbrescia, L. Congedo, M. De Serio, G. Galati, G. Pugliese, S. Simone, D. Ramos, P. Salvini, A. Samalan, M. Tytgat, N. Zaganidis, J. Eysermans, A. Ferretti, M. Gagliardi, L. Terlizzi, E. Vercellin, P. Dupieux, B. Joly, S. P. Manen, R. Guida, B. Mandelli, G. Rigoletti, M. Barroso, M. C. Arena, A. Pastore, R. Aly, M. Verzeroli, S. Buontempo
Summary: Resistive Plate Chamber detectors are widely used in current High Energy Physics experiments. However, efforts are being made to find eco-friendly gas alternatives to Tetrafluoroethane. The RPC EcoGas@GIF++ collaboration aims to improve RPC technology, evaluate the performance of RPCs with eco-friendly gas mixtures, and conduct aging tests.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
