A5051937349- Nuclear Physics and Applications
- Radiation Detection and Scintillator Technologies
- Nuclear physics research studies
- Nuclear reactor physics and engineering
- Radiation Therapy and Dosimetry
- Atomic and Subatomic Physics Research
- Particle Detector Development and Performance
- Quantum Chromodynamics and Particle Interactions
- Atomic and Molecular Physics
- X-ray Spectroscopy and Fluorescence Analysis
- Medical Imaging Techniques and Applications
- Sensor Technology and Measurement Systems
- High-Energy Particle Collisions Research
- Plasma Diagnostics and Applications
- Electron and X-Ray Spectroscopy Techniques
- Characterization and Applications of Magnetic Nanoparticles
- Astronomical and nuclear sciences
- Ion-surface interactions and analysis
- Particle physics theoretical and experimental studies
- Astronomical Observations and Instrumentation
- Advanced Electrical Measurement Techniques
- Radioactive Decay and Measurement Techniques
- Particle Accelerators and Free-Electron Lasers
- Radiation Effects in Electronics
- Radioactive contamination and transfer
Kyushu University
2015-2024
Jagiellonian University
1996
We carried out experiments to investigate the light output response of NaI(Tl), CsI(Tl), GSO(Ce) and LYSO(Ce) crystals for intermediate-energy 4 He, 12 C 40 Ar beams from HIMAC at National Institute Radiological Sciences.And we these several-energy gamma-ray comparison.From responses, obtained relationships between scintillation efficiency (dL/dx) specific energy loss (dE/dx) each crystal.The curves NaI(Tl) CsI(Tl) crystal have peak in a particular dE/dx.On other hand, decrease with...
Collective excitations and trajectory deflection are investigated to lower the applicable energy range of intranuclear cascade model around 50 MeV. First, inclusive $(p,{p}^{\ensuremath{'}}x)$ reaction processes that lead noncollective collective formulated under Born approximation. Then, introduced into framework model. As excitations, low-energy vibrational giant resonances considered. The is assumed be given by experimental angular distribution proton-nucleus elastic scattering. Finally,...
The recoil shadow method for the detection of fission fragments has been used to investigate delayed very heavy \ensuremath{\Lambda} hypernuclei produced in $p$-U interaction at projectile energy 1.5 GeV. From measured distribution events region and calculated momenta leaving target lifetime hyperon was determined be $\ensuremath{\tau}=2.40\ifmmode\pm\else\textpm\fi{}60$ ps. comparison number with that prompt leads an estimation cross section production $p+$U collisions GeV...
Single-particle states in $^{41}\mathrm{Ca}$ have been investigated through the Ca(d\ensuremath{\rightarrow},p${)}^{41}$Ca reaction with polarized deuterons of ${\mathit{E}}_{\mathit{d}}$=56 MeV. Angular distributions differential cross sections and vector analyzing powers were measured for 91 transitions up to 9.7-MeV excitation energy by using a magnetic spectrograph. Analyses these data performed determine ${\mathit{j}}^{\mathrm{\ensuremath{\pi}}}$ ${\mathit{C}}^{2}$S single-particle...
In our previous study, the applicable range of intranuclear cascade model was successfully extended to lower incident energy (p, p′x) reactions by introducing trajectory deflections and low-energy-loss process due collective excitations. However, model's validity confirmed only for a 56Fe target. present work we widen masses target nucleus. First, derive an expression response function, which gives probability excitation strengths, fit distorted-wave Born approximation results as function...
Deuteron production from intermediate-energy proton-nucleus interactions was investigated through experiments and model calculations, mainly to develop a theoretical by elucidating the mechanism of cluster production. Spectral double-differential cross sections were measured for inclusive $(p,dx)$ reactions on five targets in periodic table, namely ${}^{12}$C, ${}^{27}\phantom{\rule{-0.16em}{0ex}}$Al, ${}^{51}\phantom{\rule{-0.16em}{0ex}}$V, ${}^{93}$Nb, ${}^{197}$Au, at beam energies 300...
Cross sections and analyzing powers have been measured for the $^{40}\mathrm{Ca}$(p,d${)}^{39}$Ca reaction with polarized proton beams of 65 MeV incident energy. The data analysis a standard distorted-wave Born approximation theory provides transferred angular momenta l, j, spectroscopic factors 58 transitions mainly to 1${\mathit{d}}_{3/2}$, 2${\mathit{s}}_{1/2}$, 1${\mathit{d}}_{5/2}$ hole states in $^{39}\mathrm{Ca}$. occupation probabilities surface shells $^{40}\mathrm{Ca}$ spreading...
We investigate proton-production double-differential cross sections (DDXs) for 300- and 392-MeV proton-induced reactions on O, V, Tb, Ta, Au, Pb, Bi. Emitted proton energies are measured with stacked scintillator spectrometers by the $\ensuremath{\Delta}E\ensuremath{-}E$ technique. Experimental results compared intranuclear cascade (INC) quantum molecular dynamics models. Although both models can reproduce spectral DDXs, there is a difference at most forward backward angles. The cause of...
Inclusive $(p,dx)$ reactions at 42--392 MeV are investigated to understand quantitatively the roles of direct pickup and knockout. These two processes formulated introduced into intranuclear cascade model. The calculated spectral shapes magnitudes double-differential cross sections agree well with all experimental observations over entire ranges emission energy laboratory angle. model reveals contributions knockout in terms incident-energy dependence. Direct accounts for highest domain...
Proton productions from proton induced reactions have been investigated for target nuclei of $^{12}\mathrm{C}$, $^{27}\mathrm{Al}$, and $^{93}\mathrm{Nb}$ at 300 392 MeV. inelastic continua over a broad energy range were measured laboratory angles ${20}^{\ifmmode^\circ\else\textdegree\fi{}}$ to ${105}^{\ifmmode^\circ\else\textdegree\fi{}}$. The differential cross sections compared with two theoretical models, the quantum molecular dynamics (QMD) intranuclear cascade (INC) model in terms...
Nano-size magnetic magnetide is considered important for various medical applications. Dynamic motion of the particle investigated in two essential models from a theoretical point view. One drag model an artery. The second pull towards surface Threshold conditions external variables are obtained by dimensional analysis. On basis all these results, it concluded that movement fluids can be controlled fields blood vessels.
A thin plastic scintillator is used as a trigger counter in charged particle spectrometer. Since its Compton edge not clear, it difficult to test the with standard gamma-ray source. In this paper, simple method proposed determine and energy resolution of by fitting simulated spectrum measured spectrum. The was made Monte Carlo program utilizing geometry scintillator. This technique examined three different scintillators.
The intranuclear cascade model is extended to cluster-induced (deuteron and alpha particle) nuclear reactions involving inelastic scattering breakup reactions. proposed explains the projectile process by describing cluster as a superposition of several states. incident produced are assumed be collections independent particles may undergo interaction through nucleon–nucleon with target nucleus. Trajectory deflections for ejecta incorporated in account angular distributions. Calculations...
Two features, a slow slope and sharp drop, in neutron induced total nonelastic cross-sections are analyzed within the framework of an intra-nuclear cascade (INC) model. First, to reproduce from 100MeV 10 MeV, original INC is generalized two points; method construct ground state target nucleus, taking effective body between nucleons. Secondly, analyze origin drop 10MeV nearly 1 extended include quantum effects which originated existence discrete states nuclear potential. It shown that this...
Proton-induced nonelastic cross sections for $^{12}\mathrm{C}, ^{27}\mathrm{Al}, ^{56}\mathrm{Fe}$, and $^{208}\mathrm{Pb}$ are investigated in a low-energy region below 100 MeV down to nearly 0 based on framework of an intranuclear cascade (INC) model. We point out that there is scaling among the calculations including Coulomb repulsion; two cases shown: One trajectories with different impact parameters, other incident-energy dependence sections. first time calculated by usual INC model...