MINERAL OIL BASED WITH PSD
EJ-325A
EJ-325A is a mineral oil based liquid scintillator having pulse shape discrimination (PSD) properties for the separation of fast neutrons and gammas. EJ-325A replaces the original EJ-325. The new formula exhibits slightly improved scintillation efficiency and PSD properties and, importantly, has a very high flash point for safety and ease of shipping. With the mineral oil as a major solvent component, EJ-235A possesses greater optical clarity for use in large tanks.
EJ-325A exhibits considerably low solvent properties making it ideal for incorporation in containers fabricated with cast acrylic and PVC.
| PROPERTIES | EJ-25A |
| Light Output (% Anthracene) | 62 |
| Scintillation Efficiency (photons/1 MeV e-) |
9,500 |
| Wavelength of Maximum Emission (nm) | 425 |
| Decay Time, Short Component (ns) | ~ 3.5 |
| Bulk Light Attenuation Length (m) | >1 |
| Specific Gravity | 0.954 |
| Refractive Index | 1.55 |
| Flash Point (°C) | 146 |
| Boiling Point (°C) |
290-300 |
| Vapor Pressure (mm Hg, at 20°C) |
0.002 |
| No. of H Atoms per cm3 (x1022) | 6.73 |
| No. of C Atoms per cm3 (x1022) | 3.92 |
| H:C Atomic Ratio | 1.72 |
| No. of Electrons per cm3 (x1023) | 3.02 |
