A5079459729- Nuclear Physics and Applications
- Nuclear physics research studies
- Radiation Detection and Scintillator Technologies
- Atomic and Molecular Physics
- Astronomical and nuclear sciences
- Particle Detector Development and Performance
- Nuclear reactor physics and engineering
- Quantum Chromodynamics and Particle Interactions
- Isotope Analysis in Ecology
- Cancer, Hypoxia, and Metabolism
- Cancer Research and Treatments
- Spacecraft and Cryogenic Technologies
- Ovarian cancer diagnosis and treatment
- Atomic and Subatomic Physics Research
- Foot and Ankle Surgery
- Radiation Dose and Imaging
- Nuclear Materials and Properties
- Radiation Therapy and Dosimetry
- Mass Spectrometry Techniques and Applications
- Optical Polarization and Ellipsometry
- Vasculitis and related conditions
- Cancer Risks and Factors
- Inflammasome and immune disorders
- Health Promotion and Cardiovascular Prevention
- Gestational Trophoblastic Disease Studies
RIKEN Nishina Center
2017-2025
Yamagata University Hospital
2018-2025
High Energy Accelerator Research Organization
2019-2025
Tohoku University
2023
Yamagata University
2016-2022
University of Tsukuba
2021
International Medical Research (Germany)
2021
Nagaoka University of Technology
2014
Toyama Prefectural Central Hospital
2012-2013
University of Toyama
2009-2011
Summary Background Idiopathic mesenteric phlebosclerosis (IMP) is a rare disease, characterised by thickening of the wall right hemicolon with calcification veins. However, aetiology remains unknown. Aim To investigate possible association herbal medicines IMP. Method The clinical data four our own patients were collected. Furthermore, we searched for previous reports about similar detailed descriptions prescriptions that they had taken. We compared ingredients to identify toxic agent as...
The masses of ^{246}Es, ^{251}Fm, and the transfermium nuclei ^{249-252}Md ^{254}No, produced by hot- cold-fusion reactions, in vicinity deformed N=152 neutron shell closure, have been directly measured using a multireflection time-of-flight mass spectrograph. ^{246}Es ^{249,250,252}Md were for first time. Using ^{249,250}Md as anchor points α decay chains, heavier nuclei, up to ^{261}Bh ^{266}Mt, determined. These new compared with theoretical global models demonstrated be good agreement...
187Ta (𝑍=73, 𝑁=114) is located in the neutron-rich 𝐴≈190 region where a prolate-to-oblate shape transition via triaxial softness predicted to take place. A preceding work on 𝐾𝜋=(25/2−) isomer and rotational band which decays carried out by same collaboration revealed that axial symmetry slightly violated this nucleus. This paper focuses higher-lying isomer, was previously identified at 2933(14) keV mass measurements with Experimental Storage Ring GSI. The of interest has been populated...
We formulated a novel preparation of microspheres incorporating dextran magnetite complex (DM-MS), which enable magnetic field-induced heating for the induction hyperthermia. Using 500 kHz field combined with arteriolar embolization DM-MS, inductive hyperthermia was performed treatment liver tumors in rats. Three days after treatment, percentage increase tumor volume embolo-hyperthermia, alone, and control groups were 28%, 124%, 385%, respectively, embolo-hyperthermia group differing...
The excitation functions for quasielastic scattering of ^{22}Ne+^{248}Cm, ^{26}Mg+^{248}Cm, and ^{48}Ca+^{238}U are measured using a gas-filled recoil ion separator. barrier distributions extracted these systems compared with coupled-channel calculations. results indicate that the distribution is affected dominantly by deformation actinide target nuclei, but also vibrational or rotational excitations projectile as well neutron transfer processes before capture. From comparison between...
The quasielastic barrier distribution of 51V+248Cm was extracted by measuring the excitation function backscattering using a gas-filled recoil ion separator, GARIS-III. obtained is well explained coupled-channels calculation, indicating significant effect rotational deformed 248Cm. From measured average Coulomb height and deformation parameters 248Cm, side-collision energy leading to compact configuration colliding nuclei obtained. relation between side collision evaporation-residue cross...
We present the first direct measurement of atomic mass a superheavy nuclide. Atoms $^{257}$Db ($Z$=105) were produced online at RIKEN Nishina Center for Accelerator-Based Science using fusion-evaporation reaction $^{208}$Pb($^{51}$V, 2n)$^{257}$Db. The gas-filled recoil ion separator GARIS-II was used to suppress both unreacted primary beam and some transfer products, prior delivering energetic ions helium stopping cell wherein they thermalized. Thermalized $^{257}$Db$^{3+}$ then transferred...
In order to study the nucleus–nucleus interactions for syntheses of superheavy nuclei, we measured excitation functions quasielastic scattering 48Ca+208Pb, 50Ti+208Pb, and 48Ca+248Cm using gas-filled-type recoil ion separator GARIS. The events were clearly separated from deep-inelastic by GARIS its focal plan detectors, except high-incident-energy points. barrier distributions successfully extracted these systems, compared with coupled-channels calculations. results calculations indicate...
Mass-separated ^{187}Ta_{114} in a high-spin isomeric state has been produced for the first time by multinucleon transfer reactions, employing an argon gas-stopping cell and laser ionization. Internal γ rays revealed T_{1/2}=7.3±0.9 s isomer at 1778±1 keV, which decays through rotational band with perturbations associated approach to prolate-oblate shape transition. Model calculations show less influence from triaxiality compared heavier elements same mass region. The isomer-decay reduced E2...
Beta-decay spectroscopy of the $^{187}\mathrm{Ta}$ ground state was performed at KEK Isotope Separation System. $\ensuremath{\beta}$-delayed $\ensuremath{\gamma}$ rays corresponding to previously reported in-beam transitions were observed. The $\ensuremath{\beta}$-decay half-life determined be 283(10) s by analyzing a time spectrum $\ensuremath{\beta}\text{\ensuremath{-}}\ensuremath{\gamma}$ coincidence events. branching ratio and log($ft$) values evaluated for first time. Based on newly...
Deexcitation $\ensuremath{\gamma}$ rays associated with an isomeric state of $^{186}\mathrm{Ta}$ were investigated. The isomers produced in multinucleon transfer reactions between a $^{136}\mathrm{Xe}$ beam and natural W target collected separated by the KEK Isotope Separation System. Two transitions energies 161.1(2) 186.8(1) keV decay observed for first time. half-life neutral atom $^{186\mathrm{m}}\mathrm{Ta}$ was deduced as 17(2) s. Based on comparison previous measurements using...
Squamous cell cervical carcinoma that metastasized to the ovary is common in patients with bulky tumors or locally advanced disease; however, ovarian squamous after conization surgery for early microinvasive uterine very rare. We present a case of 8 years carcinoma. She had no sign recurrence cervix. detected human papillomavirus type 16 DNA both tissue and tissue, suggesting derived from cancer. Although there are few cases delayed recurrence, we should pay attention strictly not only...
This case report demonstrates that interleukin (IL)-5 levels and eosinophil cationic protein (ECP) correlated well with disease activity of Churg–Strauss syndrome (CSS) in a patient receiving treatment leucotriene receptor antagonist inhaled corticosteroid. In addition, ECP was localized the inflamed tissue. IL-5 may thus provide clue to therapeutic efficacy patients CSS using antagonists
We have fabricated and investigated IrMn3/Co2FeAl0.5Si0.5 stacks to meet the criteria for future spintronic device applications which requires low-temperature crystallisation (<250 °C) a large exchange bias Hex (>500 Oe). Such system would form pinned layer in spin-valve or tunnel junction applications. demonstrated that annealing at 300 °C can achieve crystalline ordering Co2FeAl0.5Si0.5 giving ∼80% of predicted saturation magnetisation. also induced an ∼240 Oe interface....
The atomic masses of the isotopes $^{206,207}\mathrm{Ra}$ have been measured via decay-correlated mass spectroscopy using a multireflection time-of-flight spectrograph equipped with an $\ensuremath{\alpha}$-TOF detector. Ra were produced as fusion-evaporation products in $^{51}\mathrm{V}+^{159}\mathrm{Tb}$ reaction system and delivered by gas-filled recoil ion separator GARIS-II at RIKEN. detector provides for high-accuracy measurements correlating signals subsequent...
We report the mass measurements of neutron-rich isotopes produced via spontaneous fission ${}^{252}$Cf using a multi-reflection time-of-flight spectrograph. The ${}^{155}$Ce is determined experimentally for first time. A discrepancy between experimental and literature values was found ${}^{127}$Sb, which previously deduced through indirect measurements. In comparison with several theoretical predictions, both trend excesses ${}^{152-155}$Ce cannot be consistently explained. wide-range...