1. Some characteristics of the extruded scintillator.
10/24/2019
Some characteristics of the extruded scintillator.
Victor Rykalin
Victor Rykalin

2. Content Introduction The results of measurements Summary 10/24/2019
Victor Rykalin

3. Introduction
We are doing very well !
10/24/2019
Victor Rykalin

4. Introduction part, some useful information
We have 100*5mm^2 of 6 m long profile for analysis.
Mechanical measurements (we did before, NICADD measurements).
Light output uniformity (within one cell, WSU measurements).
Light output measurements(over 6 m scintillator profile, FNAL-NICADD measurements).
Light output measurements (comparison to cast scintillator, FNAL-NICADD measurements)
10/24/2019
Victor Rykalin

5. Mechanical measurements
The result is based on P. Torres NICADD activity.
4.78  mm
20 cm
44 m
10/24/2019
Victor Rykalin

6. Light output uniformity of FNAL-NICADD scintillator (WSU measurements)
50 mm
50 mm
Sr 90, 2 mm coll., 8 mm step, 56 points, sigma grooved fiber of =0.83 mm.
Sigma ~ 2.2 % FNAL- NICADD
10/24/2019
Victor Rykalin

7. 100*5 mm^2 scintillator 1. 2. 3. 4. Cells measurements
How the measurements were performed ?
100*5 mm^2 scintillator 1. 2. 3.
Cells measurements
Fluorescence measurements
Light output measurements and selection of the scintillator for the cell fabrication
Cells production, no wrapping.
10/24/2019
Victor Rykalin

8. Light output uniformity, 6 m.
Bi e MeV 7% kj MeV 2% kikkkkjkjkj MeV 2%
10/24/2019
Victor Rykalin

9. The results, uniformity over 6 m
Each sample is 6 pieces of scintillator 19*19 mm^2
269.4  7.7 (~ 3%)
10/24/2019
Victor Rykalin

10. Distribution
10/24/2019
Victor Rykalin

11. Uniformity over 1 sample 10*10 cm^2
269
255
263.0  (~2.5 %)
10/24/2019
Victor Rykalin

12. The results, relative light output normalized to the 1 mm of scintillator thickness, bulk measurements, Ru106
BC  0.22
BC  0.15
F-NICADD 2.01  (~66% of BC408)
averaged over 10 samples
10/24/2019
Victor Rykalin

13. Summary. When the extruder works properly for the scintillator bulk we have….
Thickness  ~ 0.6 % (4.78 mm)
Uniformity LY  ~ 2.2 % (5*5 cm2 )
Uniformity LY  ~ 3 % (over 6 m)
Uniformity LY  ~ 2.5 % (10*10 cm2)
Light output % of BC408
This is a starting point !
10/24/2019
Victor Rykalin