## Plateauing counter four using multiple counters.

The optimum voltage is within the first few points on the plateau. Performance studies were used to find the optimum voltage more exactly.

These are the values for the graph above. Three seperate test were made using mulitple counters. Counters one and two were used in all three tests to plateau counter four.

Blue Pink Red Volts Counts per Minute(1&2&4) Volts 1&2&41&2 Counts per Minute(1&2&4) 1&2&41&2 0.853 0.12 95 0.840 0.08 68 0.855 0.17 138 0.960 0.58 452 0.958 0.57 457 0.931 0.66 525 1.046 0.60 467 1.035 0.56 451 1.042 0.68 547 1.154 0.60 474 1.156 0.57 463 1.141 0.72 573 1.240 0.62 481 1.233 0.66 483 1.240 0.71 787 1.355 0.62 484 1.343 0.61 488 1.352 0.70 563 1.457 0.62 488 1.434 0.61 494 1.439 0.74 593 1.545 0.64 504 1.533 0.59 479 1.544 0.72 578 1.642 0.61 479 1.643 0.63 504 1.645 0.72 574 1.738 0.64 497 1.728 0.60 484 1.753 0.72 576 1.805 0.64 499 1.805 0.59 477 1.805 0.74 594

#### Blue

Counters one and two were set to a voltage of 1.106 volts and kept constant. Their coincidence was measured three times, when counter four was at 1.046, 1.355, and 1.642 volts. The counts per minute were 773, 770, and 804, respectivly. The average was 782 counts per minute.

#### Pink

Counters one and two were set to a voltage of 1.110 volts and kept constant. Their coincidence was measured three times, when counter four was at 1.035, 1.343, and 1.634 volts. The counts per minute were 809, 790, and 818, respectivly. The average was 806 counts per minute.

#### Red

Counters one and two were set to a voltage of 1.110 volts and kept constant. Their coincidence was measured three times, when counter four was at 0.855, 1.141, and 1.439 volts. The counts per minute were 810, 788, and 802, respectivly. The average was 800 counts per minute.

This study was run at 1.150 volts. With the Gaussian distribution this appears to be about the optimum voltage.

Note: This is the same study as shown for counter four in the single counter plateauing.