CONFIGURATION © @ QO © #1! ©© © @ © © 995, /90y SOURCE PLACED 12 INCHES FROM THE MIDLINE OF THE TLD HOLDER. S — INDICATES TLD LOCATED BENEATH 3.48mm OF ALUMINUM O — INDICATES TLD WASNT SHIELDED CALIBRATION FACTOR = 0.19456 RADS/NANOCOULOMB YO OC © © YO © CONFIGURATION #2 CALIBRATION FACTOR = 0.1414 RADS/NANOCOULOMB CONFIGURATION #3 OQ © O® © © O©® © © AVERAGE CALIBRATION Figure 2. CALIBRATION FACTOR = 0.1464 RADS/NANOCOULOMB FACTOR = 0.1445 + 0.00273 RADS/NANOCOULOMB Determination of Beta calibration factor. ~ 20 -