Na-22 Measurements of Several Samples

Experimental Set Up

Identical setup as was used here. Runs were performed on DMR10, DMR-12, and a long piece of generic plastic scintillator. Runs were done in 20mm intervals for 10 minutes each. This was done as an extrapolation of runs done on 20170110 to further investigate the attenuation coefficient of an unloaded scintillator.

Runs were also done on a piece of generic scintillator (DIMENSIONS) to investigate attenuation coefficients of plastics not fabricated in the lab.

Data

DMR-12D, 20mm

Figure 1: DMR-12 Measurements

DMR-12D, 40mm

Figure 2: DMR-12 Measurements

DMR-12D, 60mm

Figure 3: DMR-12 Measurements

DMR-12D, 80mm

Figure 4: DMR-12 Measurements

DMR-12D, 100mm

Figure 5: DMR-12 Measurements

DMR-12D, 120mm

Figure 6: DMR-12 Measurements

DMR-12D, 140mm

Figure 7: DMR-12 Measurements

DMR-12D, 160mm

Figure 8: DMR-12 Measurements

DMR-12D, 180mm

Figure 9: DMR-12 Measurements

DMR-12D, 200mm

Figure 10: DMR-12 Measurements

DMR-12D, 220mm

Figure 11: DMR-12 Measurements

Generic Scintillator, 20mm

Figure 12: DMR-12 Measurements

Generic Scintillator, 60mm

Figure 13: DMR-12 Measurements

Generic Scintillator, 100mm

Figure 14: DMR-12 Measurements

Generic Scintillator, 140mm

Figure 15: DMR-12 Measurements

Analysis

DMR-12
Face	Distance of Source from PMT (mm)	Peak Location (nVs)	Error (+/- nVs)
D	20	9	2.5
D	40	6.5	1.5
D	60	4.7	1.3
D	80	3.6	1
D	100	2.5	0.8
D	120	1.9	0.6
D	140	1.55	0.45

Generic Scintillator
Distance of Source from PMT (mm)	Peak Location (nVs)	Error (+/- nVs)
20	14.25	3.75
60	6.9	2.1
100	4.4	1.6
140	2.2	0.7

Figure 16: Data Summary, DMR-12

Figure 17: Data Summary, Generic Scinitllator

For DMR-12, two peaks could not be fitted to data collected above 140mm away from the PMT face.

−Table of Contents