6LITHIUM LOADED PSD PLASTIC SCINTILLATOR
EJ-270
This new plastic scintillator contains the element Lithium-6 at an isotopic enrichment of 95.5+ atom%. It is also formulated to provide classical pulse shape discrimination (PSD) for identification of scintillation pulses from fast neutrons, gammas and thermal neutrons. It is presently available as cylinders up to 60 mm diameter x 60 mm long and cubes up to 51 mm per side. At this time, EJ-270 is available with a 6Li loading level of 0.5% by weight.
Initial performance information of the Eljen product is presented on the second page of the data sheet linked below. Page 2 is part of a larger presentation at the 2016 SPIE Conference by permission from Lawrence Livermore National Laboratory (LLNL) where the scintillator was invented. [Cherepy, N.J., Martinez, H.P., Sanner, R.D., Beck, P.R., Drury, O.B., Swanberg, E.L., Payne, S.A., Hurlbut, C.R., & Morris, B. (2017). New Plastic Scintillators for Gamma Spectroscopy, Neutron Detection and Imaging. 2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 1-3.]
| PROPERTIES | EJ-270 |
| Light Output (% Anthracene) | 31 |
| Scintillation Efficiency (photons/1 MeV e-) |
4,800 |
| Electron Energy Equivalence of n-Capture Peak (keV) | 350 |
| Wavelength of Maximum Emission (nm) | 425 |
| Rise Time (ns) | TBD |
| Decay Time (ns) | TBD |
| Pulse Width, FWHM (ns) | TBD |
| No. of H Atoms per cm3 (x1022) | 5.20 |
| No. of C Atoms per cm3 (x1022) | 4.62 |
| No. of 6Li Atoms per cm3 (x1020) | 5.75 |
| No. of O Atoms per cm3 (x1021) | 4.79 |
| No. of N Atoms per cm3 (x1020) | 9.31 |
| No. of Electrons per cm3 (x1023) | 3.67 |
| Density (g/cm3) | 1.14 |
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Chemical Compatibility
Attacked by: Aromatic solvents, Chlorinated solvents, Ketones, Solvent bonding cements, etc.
Stable in: Water, Dilute acids and alkalis, Lower alcohols, and Silicone greases.
Compatible with most epoxies and "super glues".
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