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- Title
Fluorescence emission, life time, thermal properties of trans-stilbene mixed diphenylacetylene scintillator crystal.
- Authors
Purushothaman, P.; Durairaj, N.; Mani, G.; Kalainathan, S.
- Abstract
Diphenylacetylene (DPAC) is a promising organic scintillator material for fast neutron detection. Solubility measurement was carried with two different solvents such as toluene and methanol. Stilbene mixed diphenylacetylene (DPACS) was successfully harvested from toluene with the dimensions of 42 × 12 × 8 mm3. X-ray diffraction confirms the monoclinic crystal structure with the obtained lattice parameters. The vibrational characteristic functional group was identified by FTIR studies. UV–Vis spectral analysis of the grown DPACS crystal reveals good optical transparency in visible and near IR region. The thermal behaviour and melting point of the sample was analysed by TGA-DSC. Chemical etching analysis was carried out on the crystal surface at an ambient temperature to see the dislocations and growth pattern of the crystal. Fluorescence broad emission peak was observed and the prompt and delayed fluorescence lifetimes of the DPACS were calculated.
- Subjects
SCINTILLATORS; DIPHENYLACETYLENE; NEUTRON counters; FAST neutrons; THERMAL properties; DELAYED fluorescence; STILBENE
- Publication
Journal of Materials Science: Materials in Electronics, 2021, Vol 32, Issue 7, p8366
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-021-05421-8