0000000000550119

AUTHOR

Takuma Noto

showing 3 related works from this author

Development of High Resolution Resonance Ionization Mass Spectrometry for Neutron Dosimetry Technique with93Nb(n,n')93mNb Reaction

2016

We have proposed an advanced technique to measure the 93mNb yield precisely by Resonance Ionization Mass Spectrometry, instead of conventional characteristic X-ray spectroscopy. 93mNb-selective resonance ionization is achievable by distinguishing the hyperfine splitting of the atomic energy levels between 93Nb and 93mNb at high resolution. In advance of 93mNb detection, we could successfully demonstrate high resolution resonant ionization spectroscopy of stable 93Nb using an all solid-state, narrowband and tunable Ti:Sapphire laser system operated at 1 kHz repetition rate. peerReviewed

Physicsmassaspektrometriata114resonance Ionization010308 nuclear & particles physicsPhysicsQC1-999Analytical chemistryMass spectrometryLaser01 natural scienceslaw.inventionNuclear physicslawIonizationYield (chemistry)0103 physical sciencesResonance ionizationPhysics::Atomic and Molecular ClustersSapphirePhysics::Atomic Physics010306 general physicsSpectroscopyHyperfine structuremass spectrometryEPJ Web of Conferences
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Development of resonance ionization in a supersonic gas-jet for studies of short-lived and long-lived radioactive nuclei

2013

High-resolution resonance ionization spectroscopy (RIS) is required for laser spectroscopy and trace analysis of short-lived and long-lived radioactive nuclei. We have proposed high-resolution resonance ionization spectroscopy in a gas jet combined with a narrow band-width injection-locked Ti:Sapphire laser. Resonance ionization of stable 93Nb in a gas jet was demonstrated using a broad bandwidth Ti:Sapphire laser. In addition, a setup for high-resolution RIS in a gas-jet was designed using numerical simulations of the gas-jet conditions based on computational fluid dynamics.

Nuclear and High Energy PhysicsJet (fluid)ta114ChemistryThermal ionizationInstrumental chemistryIon sourceAtmospheric-pressure laser ionizationPhysics::Atomic PhysicsAtomic physicsSpectroscopyInstrumentationElectron ionizationAmbient ionizationNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
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Development of a sequential data correction method for isotope ratio analysis by resonance ionization mass spectrometry

2015

A sequential data correction method using several experimental parameters of pulsed resonance ionization mass spectrometry was developed to reduce mass discrimination effects for isotope ratio analysis as well as fluctuations in the ion count rate. This correction method was applied to isotope ratio determination of stable titanium isotopes using a two-step, single color ionization scheme. A significant improvement of the precision of the measured isotopic ratio of stable titanium isotopes was demonstrated after correction with a parameter set consisting of laser power, atmospheric pressure, and laser frequency.

Nuclear and High Energy PhysicsAtmospheric pressureIsotopeChemistry010401 analytical chemistryAnalytical chemistry02 engineering and technologyThermal ionization mass spectrometry021001 nanoscience & nanotechnologyMass spectrometry01 natural sciences0104 chemical sciencesIonNuclear Energy and EngineeringIonizationPhysics::Atomic PhysicsLaser power scalingTime-of-flight mass spectrometry0210 nano-technologyJournal of Nuclear Science and Technology
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