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 60mm diameter x 60mm 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 this data sheet. Page 2 is part of a larger presentation at the 2016 SPIE Conference by permission from Lawrence Livermore National Laboratory where the scintillator was invented. Paper authors: H.P. Martinez, N.J. Cherepy, P.R. Beck, R.D. Sanner, E.L. Swanberg & S.A. Payne from LLNL and C.R. Hurlbut and R. B. Morris from Eljen.
Physical and Scintillation Constants: Light Output, % Anthracene................................................. 31 Scintillation Efficiency, photons/1 MeV e " ............................ 4,800 Electron energy equivalence of n-capture peak,keV........... 350 Wavelength of Max. Emission, n m ...................................... 425 Rise Time, ns ........................................................................ TBD Decay Time, n s ..................................................................... TBD Pulse Width, FWHM, ns ...................................................... TBD No. of H Atoms per cm3, x 1022 ........................................... 4.74 No. of C Atoms per cm3, x 1022 ........................................... 4.55 No. of 6Li Atoms per cm3, x 1020 ........................................... 5.75 No. of O Atoms per cm3, x 1021........................................... 4.79 No. of N Atoms per cm3, x 1020........................................... 9.31 No. of Electrons per cm3, x 1023 ........................................... 3.67 Density, g/cc: ......................................................................... 1.14 Lin Atten Coeff for nth，Z(cm_1) ............................................. 0.5408 |
Chemical Compatibility:
Is attacked by aromatic solvents, chlorinated solvents, ketones, solvent bonding cements, etc. It is stable in water, dilute acids and alkalis, lower alcohols and silicone greases.
It is safe to use most epoxies and “super glues” with EJ-270.
