Table 4.
The effects of beam angle, distance and exposure time on a 105 inoculum of B. subtilis at an RH range of 46–50% and temperatures of 22–23°C.
| Position 1 (Left) |
Position 2 (Center) |
Position 3 (Right) |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Distance | Time | µWs/cm² | CFU | Log Reduction | µWs/cm² | CFU | Log Reduction | µWs/cm² | CFU | Log Reduction |
| 27.9 cm | 5 sec | 815 | 56 | 3.3 | 1,240 | 38 | 3.4 | 765 | 45 | 3.3 |
| 10 sec | 1,580 | 54 | 3.3 | 2,400 | 40 | 3.4 | 1,470 | 45 | 3.3 | |
| 30 sec | 4770 | 26 | 3.6 | 7,260 | 9 | 4.0 | 4,470 | 27 | 3.6 | |
| 50 cm | 5 sec | 465 | 42 | 3.4 | 485 | 45 | 3.3 | 470 | 47 | 3.3 |
| 10 sec | 940 | 43 | 3.4 | 970 | 47 | 3.3 | 930 | 48 | 3.3 | |