Development of a charged particle-γ coincidence system for nuclear structure and reaction studies at TIFR

• Published in: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2024-12, Vol.1069, p.169976, Article 169976
• Main Authors: Kundu, A., Dey, P., Palit, R., Raju, M. Kumar, Jadhav, S.V., Naidu, B.S., Malik, Vishal, Das, Biswajit, De, Sudip, Sindhu, A., Vazhappily, A.T.
• Format: Article
• Language: English
• Subjects: 229Th α-γ source; Annular charged particle detector; Coulomb excitation; Particle-γ coincidence technique
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2024.169976

A new detector system for measurements of charged particles and γ-rays in coincidence has been developed at TIFR Mumbai, by coupling an annular double-sided segmented Si detector with an array of Compton-suppressed clover HPGe detectors. Digital data acquisition system has been configured for the setup, which has been calibrated and tested using the 229Th radioactive source that emits α-particles along with γ-rays. The functionality and performance of the coincidence apparatus for Doppler correction of γ-transitions emitted during the in-flight de-excitation of the projectile and the target in the 30Si + 197Au Coulomb excitation experiment have been demonstrated.