CASTING RESIN
EJ-290
EJ-290 is a partially-polymerized plastic scintillator formulated for final curing in the user's facilities at a relatively low temperature. It is supplied in a kit form consisting primarily of the scintillator resin and a polymerization initiator. Upon combining the ingredients in accordance with the provided instructions, a solid plastic scintillator can be made at a relatively low polymerization temperature. The final scintillation and physical properties are quite similar to those of the conventional blue-emitting plastic scintillator EJ-212.
Click the link in the side-menu for instructions on how to use EJ-290. Typical shelf life for this product is approximately 3 months when tightly sealed and stored in a cool place, preferably in a refrigerator.
| PROPERTIES | EJ-290 |
| Light Output (% Anthracene) | 58 |
| Scintillation Efficiency (photons/1 MeV e-) |
9,000 |
| Wavelength of Maximum Emission (nm) | 423 |
| Decay Time (ns) | ~ 3 |
| No. of H Atoms per cm3 (x1022) | 5.17 |
| No. of C Atoms per cm3 (x1022) | 4.67 |
| No. of Electrons per cm3 (x1023) | 3.33 |
| Density (g/cm3) | 1.02 |
| Polymer Base | Polyvinyltoluene |
| Refractive Index | 1.58 |
| Softening Point | 75°C |
| Vapor Pressure | Vacuum-compatible |
| Coefficient of Linear Expansion | 7.8 x 10-5 below 67°C |
