Thin Film Polymer Composite Scintillators for Thermal Neutron Detection
Figure 8
Neutron (black line) and gamma-ray (red line) responses for a 50 μm sample containing 20% 6LiF and 5% PPO/POPOP. The vertical line indicates the lower-level discriminator setting at which the neutron intrinsic efficiency is 1.2 × 10−3. At this point, the gamma-ray intrinsic efficiency is 5.24 × 10−6, indicating that approximately 1 in every 190,000 gamma-rays passing through the detector surface is misclassified as a neutron.
