Table 2.
Fraction of detected photons that underwent various processes during their propagation.
| GeoPri a | ScaInBody b | PenScaCol c | X-ray d | Bck e | |
|---|---|---|---|---|---|
| 60–100 keV | 9.4% | 66.4% | 27.1% | 9.3% | 22.7% |
| 100–160 keV | 9.9% | 49.2% | 51.9% | 0.01% | 50.6% |
| 160–300 keV | 5.1% | 30.3% | 83.1% | 0.00% | 72.6% |
| 300–2000 keV | 1.2% | 21.7% | 97.5% | 0.00% | 31.9% |
a
Geometrically collimated primary photons.
b
Body-scattered photons.
c
Collimator scatter and penetration.
d
Collimator lead characteristic X-ray.
e
Backscatter from compartments behind the crystal.