ELJEN TECHNOLOGY SCINTILLATOR AND GLUE NEW CELLS RESPONSES ALEXANDRE DYCHKANT, PETER TORRES 11/26/2018 ELJEN TECHNOLOGY SCINTILLATOR AND GLUE

ELJEN TECHNOLOGY SCINTILLATOR AND GLUE GEOMETRY OF CELLS 3MM (3.28) EJ-200 REGULAR HEXAGON 4MM (3.80) EJ-200 REGULAR HEXAGON 5MM (5.51) EJ-200 REGULAR HEXAGON 3MM EJ-200 REGULAR HEXAGON 6CM² 5MM EJ-200 SQUARE 6CM² 5MM EJ-200 SQUARE 9CM² 5MM (4.85) EXTRUDED REGULAR HEXAGON 11/26/2018 ELJEN TECHNOLOGY SCINTILLATOR AND GLUE

ELJEN TECHNOLOGY SCINTILLATOR AND GLUE SQUARE, 0.8 MM SIDE, 1 M LONG BCF92 WLS FIBERS WITH MIRRORED END WERE GLUED INSIDE THE SIGMA SHAPE TAPERED GROOVE USING EJ-200 OPTICAL GLUE 2 mC Sr90 RADIOACTIVE SOURCE AND HAMAMATSU PMT R580 WERE USED 11/26/2018 ELJEN TECHNOLOGY SCINTILLATOR AND GLUE

ELJEN TECHNOLOGY SCINTILLATOR AND GLUE VERY PRELIMINARY RESPONSE OF CELLS MADE FROM ELJEN TECHNOLOGY SCINTILLATOR 3 mm 4 mm 5 mm 5/6 cm Sq 5/6 Sq 5/9 Ext 5 Com 448.6 15.3 423.4 14.5 380.2 28.4 444.6 34.3 446.4 42.5 356.3 19.1 288.6 20.8 Bef glu 478.1 491.9 515.3 454.3 502.2 409.1 330.5 Glu tyvek Glu paint Glu ** 11/26/2018 ELJEN TECHNOLOGY SCINTILLATOR AND GLUE

ELJEN TECHNOLOGY SCINTILLATOR AND GLUE RATIO OF RESPONSES AFTER/BEFOR GLUING 3 mm 4 mm 5 mm 5/6 cm Sq 6/5 Sq 9/5 Ext 5 1.04 0.95 1.05 1.14 1.12 1.16 1.06 1.35 1.08 1.07 1.24 1.13 1.30 1.29 1.58 1.41 1.26 1.20 1.44 1.37 1.27 1.39 1.10 1.03 1.00 0.91 1.09 1.19 1.51 1.32 1.49 0.77 1.36 1.40 0.75 0.88 1.18 1.21 1.02 11/26/2018 ELJEN TECHNOLOGY SCINTILLATOR AND GLUE

ELJEN TECHNOLOGY SCINTILLATOR AND GLUE COMENTS… THERE WERE EIGHT FIBERS WHICH WERE REPLACED BEFOR GLUING BECAUSE OF MULTIPLE CRACKS THE RED NUMBERS IN THE TABLE ARE THE CELLS, WHICH HAVE FIBERS WITH CRACKS; THE VISUAL INSPECTION WITH RED LASER CONFIRMED THIS, ACTUALLY ONLY BLUE NUMBERS IN THE TABLE PROVIDE THE NORMAL RESPONSES, HEXAGONAL SHAPED, 5 MM THICKNESS, AND 9.4 CM² AREA CELL HAS THE BEST RESPONSE THE VERY WIDE SPREADE OF RESPONSES IS THE RESULTE OF MULTIPLE CRACKS OF FIBER CLADING AND MAYBE OPTICAL GLUE. 11/26/2018 ELJEN TECHNOLOGY SCINTILLATOR AND GLUE

ELJEN TECHNOLOGY SCINTILLATOR AND GLUE BICRON GLUE BC-600 VS ELJEN EJ-500 EIGHT SQUARE CELLS WITH 9.4 CM² AREA AND DIAGONAL HOLL WERE MADE FROM 5 MM THIKNESS NICADD EXTRUDED SCINTILLATOR, 0.94 MM OUTER DIAMETER, 57 CM LONG KURARAY Y-11 WLS FIBERS WITH MIRRORED END WERE GLUED INSIDE THE CELL’S HOLL, IT WAS TWO SETS OF FOUR CELLS FOR EACH TYPE OF OPTICAL GLUE, RADIOACTIVE SOURCE Sr90 AND HAMAMATSU PMT R580 WERE USED, THE ARERAGE RESPONSE FOR BC-600 WAS 692.7 nA, THE ARERAGE RESPONSE FOR EJ-500 WAS 692.9 Na, EJ-500 PROVIDED THE SAME RESPONSE AS BC-600, BUT LESS COST. 11/26/2018 ELJEN TECHNOLOGY SCINTILLATOR AND GLUE