Table 2.
Source | System | Count rate measurement | Pearson coefficient |
---|---|---|---|
Disk source | 1 | ROI | 0.2250 |
Entire FOV | 0.4718 | ||
2 | ROI | 0.6581 | |
Entire FOV | 0.5091 | ||
3 | ROI | 0.4400 | |
Entire FOV | −0.1330 | ||
Small rod | 3 | ROI | 0.1878 |
Entire FOV | −0.1473 | ||
Large rod | 3 | ROI | 0.0667 |
Entire FOV | 0.2291 |