The measurement of the half-life of the second excited state of 237Np with a new detector system and digital electronics

Author(s)

Santos, O. C. B. ; Oliveira, J. R. B. ; Macchione, E. ; Lichtenthaeler, R. ; Pires, K. C. C. ; Lepine-Szily, A.

• Document type: Journal article
• Source: Nuclear Physics A; v. 1040, p. 8-pg., 2023-09-01.

Abstract

The half-life of the second excited state (5/2- at 59.54 keV) of 237Np was measured with high precision and reliability using the coincidence method with fast scintillators and a fully digital-based electronic data acquisition system. The alpha particle from an 241Am source was measured in coincidence with the gamma rays emitted by the daughter 237Np nucleus. This measurement also illustrates the use of new LYSO(Ce) scintillators in particle-gamma experiments. & COPY; 2023 Elsevier B.V. All rights reserved. (AU)

• FAPESP's process: 19/07767-1 - Nuclear reactions with weakly-bound or cluster-structured radioactive and stable nuclei
• Grantee: Leandro Romero Gasques
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 19/02759-0 - Physics of exotic nuclei with the RIBRAS system
• Grantee: Rubens Lichtenthäler Filho
• Support Opportunities: Regular Research Grants
• FAPESP's process: 21/12254-3 - Exclusives measurements of nuclear reactions with weakly bound stable and radioactive ion beams
• Grantee: Osvaldo Camargo Botelho dos Santos
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 16/04612-9 - Weakly bound nuclei and break-up mechanism with or without transfer
• Grantee: Jose Roberto Brandão de Oliveira
• Support Opportunities: Regular Research Grants