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KISS-1.5: Upgrade of KEK Isotope Separation System.

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Title: KISS-1.5: Upgrade of KEK Isotope Separation System.
Authors: Watanabe, Yutaka1 (AUTHOR), Hirayama, Yoshikazu1 (AUTHOR)
Source: Nuclear Physics News. Jan-Mar2026, Vol. 36 Issue 1, p12-15. 4p.
Subject Terms: *Isotope separation, *Isotopes, *Nuclear astrophysics, *Atomic nucleus, *Nucleon-nucleon interactions, *Neutron capture
Abstract: The article focuses on the development and scientific contributions of the KEK Isotope Separation System (KISS) and its upgraded version, KISS-1.5, at the RIKEN Radioactive Isotope Beam Factory (RIBF) for studying neutron-rich nuclei critical to the rapid neutron-capture process (r-process) in nucleosynthesis. KISS employs multinucleon transfer reactions combined with gas-cell thermalization and laser ionization to produce and analyze refractory nuclei near neutron magic number 126, providing key experimental data on masses and decay properties previously inaccessible. The KISS-1.5 upgrade introduces a helium-based gas cell, enhanced ion extraction, and a variable mass-range separator, enabling systematic measurements of over 80 neutron-rich actinide isotopes, which are essential for refining nuclear models and improving astrophysical understanding of heavy-element formation. These advancements address significant gaps in experimental data, particularly in the actinide region, and are expected to substantially reduce uncertainties in r-process modeling. [Extracted from the article]
Database: Energy & Power Source
FullText Text:
  Availability: 0
Header DbId: enr
DbLabel: Energy & Power Source
An: 192657534
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
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  Data: KISS-1.5: Upgrade of KEK Isotope Separation System.
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  Data: <searchLink fieldCode="AR" term="%22Watanabe%2C+Yutaka%22">Watanabe, Yutaka</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hirayama%2C+Yoshikazu%22">Hirayama, Yoshikazu</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Nuclear+Physics+News%22">Nuclear Physics News</searchLink>. Jan-Mar2026, Vol. 36 Issue 1, p12-15. 4p.
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  Data: *<searchLink fieldCode="DE" term="%22Isotope+separation%22">Isotope separation</searchLink><br />*<searchLink fieldCode="DE" term="%22Isotopes%22">Isotopes</searchLink><br />*<searchLink fieldCode="DE" term="%22Nuclear+astrophysics%22">Nuclear astrophysics</searchLink><br />*<searchLink fieldCode="DE" term="%22Atomic+nucleus%22">Atomic nucleus</searchLink><br />*<searchLink fieldCode="DE" term="%22Nucleon-nucleon+interactions%22">Nucleon-nucleon interactions</searchLink><br />*<searchLink fieldCode="DE" term="%22Neutron+capture%22">Neutron capture</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The article focuses on the development and scientific contributions of the KEK Isotope Separation System (KISS) and its upgraded version, KISS-1.5, at the RIKEN Radioactive Isotope Beam Factory (RIBF) for studying neutron-rich nuclei critical to the rapid neutron-capture process (r-process) in nucleosynthesis. KISS employs multinucleon transfer reactions combined with gas-cell thermalization and laser ionization to produce and analyze refractory nuclei near neutron magic number 126, providing key experimental data on masses and decay properties previously inaccessible. The KISS-1.5 upgrade introduces a helium-based gas cell, enhanced ion extraction, and a variable mass-range separator, enabling systematic measurements of over 80 neutron-rich actinide isotopes, which are essential for refining nuclear models and improving astrophysical understanding of heavy-element formation. These advancements address significant gaps in experimental data, particularly in the actinide region, and are expected to substantially reduce uncertainties in r-process modeling. [Extracted from the article]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=192657534
RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1080/10619127.2026.2614252
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 4
        StartPage: 12
    Subjects:
      – SubjectFull: Isotope separation
        Type: general
      – SubjectFull: Isotopes
        Type: general
      – SubjectFull: Nuclear astrophysics
        Type: general
      – SubjectFull: Atomic nucleus
        Type: general
      – SubjectFull: Nucleon-nucleon interactions
        Type: general
      – SubjectFull: Neutron capture
        Type: general
    Titles:
      – TitleFull: KISS-1.5: Upgrade of KEK Isotope Separation System.
        Type: main
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            NameFull: Watanabe, Yutaka
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            NameFull: Hirayama, Yoshikazu
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            – D: 01
              M: 01
              Text: Jan-Mar2026
              Type: published
              Y: 2026
          Identifiers:
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              Value: 36
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              Value: 1
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            – TitleFull: Nuclear Physics News
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