0000000000199804

AUTHOR

Takahide Takamatsu

showing 3 related works from this author

The laser and optical system for the RIBF-PALIS experiment

2017

Abstract This paper describes the laser and optical system for the Parasitic radioactive isotope (RI) beam production by Laser Ion-Source (PALIS) in the RIKEN fragment separator facility. This system requires an optical path length of 70 m for transporting the laser beam from the laser light source to the place for resonance ionization. To accomplish this, we designed and implemented a simple optical system consisting of several mirrors equipped with compact stepping motor actuators, lenses, beam spot screens and network cameras. The system enables multi-step laser resonance ionization in the gas cell and gas jet via overlap with a diameter of a few millimeters, between the laser photons an…

Nuclear and High Energy PhysicsspektroskopiaPhysics::Optics01 natural sciencesBeam parameter productlaw.inventionVertical-cavity surface-emitting laserLaser linewidthOpticslaw0103 physical sciencesPhysics::Atomic PhysicsLaser power scaling010306 general physicsInstrumentationPhysicsDistributed feedback laserta114010308 nuclear & particles physicsbusiness.industryFar-infrared lasergas cellLaserlasertekniikkaLaser Ion Sourcegas jetlaser spectroscopyPhysics::Accelerator PhysicsLaser beam qualitylaser resonance ionizationbusinessydinfysiikkaNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
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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 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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