Fast timing for nuclear structure and applications - FAST'26

Session

Day 3

Day 3

29 Apr 2026, 09:20

Training and Conference Center (CCI) ( Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH))

Conveners

Day 3: Nuclear structure from fast-timing measurements (III)

• Volker Werner (TU Darmstadt)

Day 3: Instrumentation

• James Cubiss (The University of Edinburgh (GB))

33. Fast-timing measurement of the $2^+_1$ state lifetime in $^{106}\mathrm{Pd}$

Dr Polytimos Vasileiou (Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH))

29/04/2026, 09:20

Nuclear structure from fast-timing measurements

Oral presentation

The neutron-deficient region around the $Z=50$ major shell closure provides fertile grounds for nuclear structure studies, as single-particle degrees of freedom compete with collective phenomena to form several of the observed spectroscopic properties. Pd isotopes, sitting 4 protons below the shell closure,present especially attractive study cases, with recent theoretical and experimental work...

29. In-flight $\gamma$-ray spectroscopy and $T_{1/2}$ measurements of low-lying excited states in $^{129}In$ and $^{128}Cd$

Michal Mikolajczuk

29/04/2026, 09:40

Nuclear structure from fast-timing measurements

Oral presentation

The region "south-west" of $^{132}$Sn is of interest for both theoretical and experimental efforts to comprehend nuclear shell structure in the vicinity of proton (Z=50) and neutron (N=82) shell closures. The half-lives of excited nuclear states are a crucial source of information on nuclear shell structure, and advanced experimental methods had to be developed to obtain the necessary data....

32. New Results in 115Rh β-decay spectroscopy

Krzysztof Albert Solak (University of Warsaw (PL))

29/04/2026, 10:00

Nuclear structure from fast-timing measurements

Oral presentation

The astrophysical rapid neutron-capture process (r-process) is responsible for producing approximately half of the heavy elements in the Universe; however, its quantitative modeling remains limited by the scarcity of experimental knowledge of the structure of neutron-rich nuclei far from stability. In particular, nuclei in the $A \approx 115$ region provide an important benchmark for nuclear...

23. Fast-timing lifetime measurements in $^{83}$Se and $^{83}$Br

LUDOVICO LAPO LUPERI (CEA Paris-Saclay)

29/04/2026, 10:20

Nuclear structure from fast-timing measurements

Oral presentation

Low-lying 1/2$^+$ and 5/2$^+$ states, interpreted as resulting from 1p-2h excitation through the N=50 shell gap, have been observed in several neutron-rich N=49 nuclei. In particular, charge radii measured for the ground state and the 1p-2h 1/2$^+$ isomer in $^{79}$Zn provide evidence for a deformed character of the latter [1].
In this context, fast-timing measurements have been performed...

40. Fast front-end amplifiers for time-of-flight PET

Dr Ivan Yakymenko (V.N. Karazin Kharkiv National University (UA))

29/04/2026, 11:00

Fast front-end and readout electronics

Invited

The evolution of the technical design in the PET scanning industry aims to reduce the radiation dose and shorten the scanning time. To achieve this ambitious goal, it is essential to develop a PET experiment and test benches for the characterization of new scintillation materials.
One important part of the readout path is a fast-amplifying stage that decouples a high-capacity photosensor...

14. Sum-Amplifier Circuit For Fast Timing With Large Area SiPM Arrays

William Marshall (University of York)

29/04/2026, 11:20

Fast front-end and readout electronics

Oral presentation

The HYPATIA (HYbrid Photon detector Array To Investigate Atomic nuclei) [1] is an array under construction at the RIBF that consists of GAGG and CeBr3 scintillator crystals coupled to large area SiPM photosensors. In particular, the Hamamatsu S14161-6050HS-04 4x4 SiPM array. Excellent timing response from HYPATIA is important for reducing the non-prompt background induced by particles emitted...

19. Intrinsic coincidence time resolution of candidate data acquisition systems for the HISTARS project

Victor Martinez Nouvilas (Universidad Complutense (ES))

29/04/2026, 11:40

Fast front-end and readout electronics

Oral presentation

The HIE-ISOLDE Timing Array for Reaction Studies (HISTARS) array is being developed for the measurement of lifetimes of excited nuclear states produced in reactions at HIE-ISOLDE (CERN). It is based on fast particle and gamma scintillator detectors that will require a fast data acquisition system capable of handling more than 60 channels with good time and energy resolution. Digitizing the...

12. Performance evaluation of GaGG(Ce) crystals coupled to different photosensors

Miriam Caballero Rodriguez (Universidad Complutense (ES))

29/04/2026, 12:00

New detector technologies

Oral presentation

In the framework of the HIE-ISOLDE Timing Array for Reaction Studies (HISTARS) project at ISOLDE/CERN, a detector system is being developed to measure lifetimes of excited nuclear states populated in reactions at HIE-ISOLDE. For particle detection, plastics or fast inorganic scintillators such as GAGG(Ce) and YSO(Ce) are promising candidates due to their non-hygroscopic nature, high density,...

11. Development of perovskite-based scintillator films for fast timing applications

Juan Francisco Gonzalez Linares (Instituto de Estructura de la Materia - CSIC)

29/04/2026, 12:20

New detector technologies

Oral presentation

In recent years, perovskites have been widely studied as materials for the development of fast scintillators [1]. Due to their excellent carrier dynamics and excitonic behavior—particularly when present as nanocrystals—perovskites can emit light between 20 and 1,000 times faster than other semiconductors [2]. These properties make them promising candidates for fast-timing applications such as...