Table 2.
Specifications for Instrumentation Examined in These Methods
| Bioscan—1500 V | Bioscan—1000 V | γ Counter | Minipix | |
|---|---|---|---|---|
| Detected radiation | All ionizing radiation | α particles | γ | All ionizing radiation |
| Detection mechanism | P-10 ionizing gas | P-10 ionizing gas | Well-type NaI detector | Si solid-state semiconductor (256 × 256 pixels) |
| Detection timea | 1 min | 5 min | 1 min | 15 min |
| Detection resolution | 3 mmb | 3 mmb | <30%b | Spatial: 9 lp/mm Energy: 0.8 keV (THL) and 2 keV (ToT) |
| Software | WinScan | WinScan | Wizard2 data analyzer | PixetPRO |
| Portable | No | No | No | Yes |
For samples >0.025 μCi.
For most γ emitters.
THL, threshold level; ToT, time-over-threshold.