0000000000219545

AUTHOR

J. Ha

showing 7 related works from this author

Decay studies in the A∼225 Po-Fr region from the DESPEC campaign at GSI in 2021

2022

The HISPEC-DESPEC collaboration aims at investigating the struc-ture of exotic nuclei formed in fragmentation reactions with decay spectroscopymeasurements, as part of the FAIR Phase-0 campaign at GSI. This paper reportson first results of an experiment performed in spring 2021, with a focus on beta-decaystudies in the Po-Fr nuclei in the 220 < A <230 island of octupole deformationexploiting the DESPEC setup. Ion-beta correlations and fast-timing techniques arebeing employed, giving an insight into this difficult-to-reach region. peerReviewed

ydinfysiikka
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Commissioning of the BRIKEN beta-delayed neutron detector for the study of exotic neutron-rich nuclei

2017

Beta-delayed neutron emission (Beta-n) is a form of radioactive decay in which an electron, an anti-neutrino and one or more neutrons are emitted. This process arises if the energy window of the decay Q_Beta is greater than the neutron separation energy S n of the daughter. The probability in each decay of emitting neutrons is called the Pn value. This form of decay plays a key role in the synthesis of chemical elements in the Universe via the rapid neutron capture process, or r-process. The r-process proceeds far from the valley of nuclear stability, and leads to very neutron-rich nuclei that then decay to the line of stability. Most of these nuclei are ßn emitters. The initial abundance d…

AstrofísicaNeutron emissionQC1-999Astrophysics::High Energy Astrophysical PhenomenaNeutron detectorNuclear TheoryElectronNeutronAstrophysics01 natural sciencesNuclear physics0103 physical sciencesNeutron detectionNeutron010306 general physicsNuclear ExperimentDelayed neutronsPhysics:Energies::Energia nuclear [Àrees temàtiques de la UPC]Neutrons:Física [Àrees temàtiques de la UPC]010308 nuclear & particles physicsPhysicsNuclear structureDetectorNeutron captureDelayed neutronRadioactive decay
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The BRIKEN Project: Extensive Measurements of $\beta $-delayed Neutron Emitters for the Astrophysical r Process

2018

An ambitious program to measure decay properties, primarily β-delayed neutron emission probabilities and half-lives, for a significant number of nuclei near or on the path of the rapid neutron capture process, has been launched at the RIKEN Nishina Center. We give here an overview of the status of the project.

AstrofísicaDelayed neutronNeutron emissionAstrophysics::High Energy Astrophysical PhenomenaNuclear dataNuclear TheoryMeasure (physics)General Physics and AstronomyNeutronAstrophysics01 natural sciencesNuclear physics0103 physical sciencesNeutronNuclear Experiment010306 general physics:Energies::Energia nuclear [Àrees temàtiques de la UPC]NeutronsPhysics:Física [Àrees temàtiques de la UPC]010308 nuclear & particles physicsNuclear dataNeutron capture:Física::Astronomia i astrofísica [Àrees temàtiques de la UPC]r-processDelayed neutronActa Physica Polonica B
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β-delayed neutron emission of r-process nuclei at the N = 82 shell closure

2021

This experiment was performed at RI Beam Factory operated by RIKEN Nishina Center and CNS, University of Tokyo. O.H, T.D, P.J.W, C.G.B, C.J.G and D.K would like to thank STFC, UK for support. This research was sponsored in part by the Office of Nuclear Physics, U.S. Department of Energy under Award No. DE-FG02-96ER40983 (UTK) and DEAC05-00OR22725 (ORNL), and by the National Nuclear Security Administration under the Stewardship Science Academic Alliances program through DOE Award No. DENA0002132. This work was supported by National Science Foundation under Grants No. PHY-1430152 (JINA Center for the Evolution of the Elements), No. PHY-1565546 (NSCL), and No. PHY-1714153 (Central Michigan Uni…

Nuclear and High Energy PhysicsNational securityQC1-999ß-delayedNuclear physicsLibrary scienceNeutrons--Capturaβ-delayed neutron emission7. Clean energy01 natural sciencesNeutrons--CaptureAstrophysical0103 physical sciencesEuropean commissionr-processimportant010306 general physicsChinaNuclear ExperimentNeutron emissionr-processPhysics:Física [Àrees temàtiques de la UPC]010308 nuclear & particles physicsbusiness.industryr-processPhysicsChinese academy of sciencesbeta-delayed neutron emissionResearch councilChristian ministryFísica nuclearNational laboratorybusinessAdministration (government)Physics Letters B
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The GALILEO γ-ray array at the Legnaro National Laboratories

2021

Abstract GALILEO, a new 4 π high-resolution γ -detection array, based on HPGe detectors, has been developed and installed at the Legnaro National Laboratories. The GALILEO array greatly benefits from a fully-digital read-out chain, customized DAQ, and a variety of complementary detectors to improve the resolving power by the detection of particles, ions or high-energy γ -ray transitions. In this work, a full description of the array, including electronics and DAQ, is presented together with its complementary instrumentation.

PhysicsNuclear and High Energy PhysicsSiliconbusiness.industryInstrumentationHigh-resolution γ-ray spectroscopyDetectorNeutronDAQ; Electronics; High-resolution γ-ray spectroscopy; HPGe; Neutron; SiliconSemiconductor detectorDAQOpticsData acquisitionElectronicsGalileo (vibration training)ElectronicsbusinessHpge detectorHPGeInstrumentation
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SARS-CoV-2 vaccination modelling for safe surgery to save lives: data from an international prospective cohort study

2021

Abstract Background Preoperative SARS-CoV-2 vaccination could support safer elective surgery. Vaccine numbers are limited so this study aimed to inform their prioritization by modelling. Methods The primary outcome was the number needed to vaccinate (NNV) to prevent one COVID-19-related death in 1 year. NNVs were based on postoperative SARS-CoV-2 rates and mortality in an international cohort study (surgical patients), and community SARS-CoV-2 incidence and case fatality data (general population). NNV estimates were stratified by age (18–49, 50–69, 70 or more years) and type of surgery. Best- and worst-case scenarios were used to describe uncertainty. Results NNVs were more favourable in su…

MaleCOVID-19 Vaccinesafe surgery; vaccination modelling; COVID-19Vascular damage Radboud Institute for Health Sciences [Radboudumc 16]MULTICENTERComorbidity030230 surgery0302 clinical medicinephase 3 clinical trial (topic)Case fatality rateProspective StudiesSARS-CoV-2 Vaccination Safe surgeryCOVID-19/epidemiologySARS-CoV-2 ; vaccination ; safe surgeryeducation.field_of_studycase fatality rateVaccinationVaccinationAdolescent; Adult; Aged; COVID-19; COVID-19 Vaccines; Comorbidity; Elective Surgical Procedures; Female; Humans; Male; Middle Aged; Postoperative Complications; Preoperative Period; Prospective Studies; SARS-CoV-2; Vaccination; Young Adulthealth care policyElective Surgical Procedures030220 oncology & carcinogenesisvaccination modellingPreoperative PeriodCOVID-19; SARS-CoV-2; cancer; vaccination; outcome; mortality; infection; modellingCohort studyprospective studyHumanmedicine.medical_specialtyArticle03 medical and health sciencesSARS-CoV-2 vaccinationSDG 3 - Good Health and Well-beingCOVID-19 Vaccines/pharmacologyHumansVaccination/methodsElective surgeryeducationAgedScience & TechnologyElective Surgical Procedureadult; aged; Article; cancer grading; cancer surgery; case fatality rate; computer assisted tomography; elective surgery; female; follow up; health care policy; human; incidence; infection rate; infection risk; major clinical study; male; middle aged; mortality; outcome assessment; phase 3 clinical trial (topic); preoperative care; prospective study; sensitivity analysis; seroprevalence; Severe acute respiratory syndrome coronavirus 2; vaccination; young adult; COVID-19; COVID-19 Vaccines; Comorbidity; Elective Surgical Procedures; Postoperative Complications; Preoperative Period; SARS-CoV-2; Vaccination; surgery.Cura preoperatòriamajor clinical studymortalityinfectionProspective StudieincidenceSurgeryHuman medicinePostoperative Complication610 Medizin und GesundheitAcademicSubjects/MED00910Settore MED/18 - CHIRURGIA GENERALESettore MED/29 - CHIRURGIA MAXILLOFACCIALEcomputer assisted tomographyESTUDOS PROSPECTIVOSsurgerysafe surgeryPostoperative Complicationssensitivity analysisSevere acute respiratory syndrome coronavirus 2preoperative careVacunacióProspective cohort studyseroprevalenceIncidence (epidemiology)covidElective Surgical Procedures/methodsMiddle Agedcancer gradingCOVID vaccinationoutcome/dk/atira/pure/sustainabledevelopmentgoals/good_health_and_well_beingSARS-CoV-2; vaccination; surgeryOriginal ArticleFemalecancer surgeryAcademicSubjects/MED00010Life Sciences & BiomedicineAdultCOVID-19 VaccinesAdolescentinternational prospective cohort studyPostoperative Complications/prevention & controlPopulationinfection rateSARS-CoV-2/immunologyNOmodellingYoung Adultmedicinefollow upcancerddc:610infection riskoutcome assessmentLS7_4business.industrySARS-CoV-2Number needed to vaccinatePreoperative careCOVID-193126 Surgery anesthesiology intensive care radiologySettore MED/18Reconstructive and regenerative medicine Radboud Institute for Health Sciences [Radboudumc 10]elective surgeryEmergency medicinebusiness[SDV.MHEP]Life Sciences [q-bio]/Human health and pathologyThe British Journal of Surgery
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Multimessenger search for sources of gravitational waves and high-energy neutrinos: Initial results for LIGO-Virgo and IceCube

2014

Made available in DSpace on 2022-04-29T07:21:49Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-11-17 We report the results of a multimessenger search for coincident signals from the LIGO and Virgo gravitational-wave observatories and the partially completed IceCube high-energy neutrino detector, including periods of joint operation between 2007-2010. These include parts of the 2005-2007 run and the 2009-2010 run for LIGO-Virgo, and IceCube's observation periods with 22, 59 and 79 strings. We find no significant coincident events, and use the search results to derive upper limits on the rate of joint sources for a range of source emission parameters. For the optimistic assumption of …

MECHANISMPhysics and Astronomy (miscellaneous)AstrophysicsFOLLOW-UP OBSERVATIONSASTROPHYSICAL SOURCESIceCubeneutrinoDetection of gravitational waveGravitational waves neutrinoObservatory[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]QCLIGO Scientific CollaborationQBPhysicsGAMMA-RAY BURSTS[SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]Settore FIS/01 - Fisica SperimentaleAstrophysics::Instrumentation and Methods for AstrophysicsASTRONOMYNuclear and High Energy Physics; Physics and Astronomy (miscellaneous)NEUTRINOSNeutrino detectorComputingMethodologies_DOCUMENTANDTEXTPROCESSINGNeutrinoSENSITIVITYGIANT FLARENuclear and High Energy Physics[PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]95.85.RyMUON NEUTRINOSAstrophysics::High Energy Astrophysical PhenomenaAstrophysics::Cosmology and Extragalactic AstrophysicsACCELERATIONGravitational wavesGeneral Relativity and Quantum CosmologyINSTABILITIESSettore FIS/05 - Astronomia e AstrofisicaCORE-COLLAPSE SUPERNOVAE[ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex]ddc:530SDG 7 - Affordable and Clean EnergyCORE-COLLAPSEDETECTOR/dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energyGravitational wave95.85.SzMAGNETIZED NEUTRON-STARS[ PHYS.ASTR.HE ] Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]AstronomyTRANSIENTS95.85.Sz; 95.85.RyRELATIVISTIC STARSLIGOPhysics and Astronomy[ SDU.ASTR.HE ] Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]Gamma-ray burstEMISSIONEnergy (signal processing)
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