From: A CZT-based blood counter for quantitative molecular imaging
Detector | Technical characteristics | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Type | Sizea (mm) | Number | Shielding (mm), material | β +/γ | Sensitivity (18F) (cps/(kBq/ml)) | MDA (18F) (kBq/ml) | Absolute efficiency (%) | Energy window | Time drift | Energy resolution | |
This work | CZT | 20 × 20 × 15 | 1 | 30, W | γ | 7.1 | 2.5 | 10.5% at 511 keV | 110–1050 keV | <0.05% /h | 8% at 662 keV |
Eriksson et al. [5] | BGO/PMT | 45 × 45 × 45 | 1 | 60, Pb | γ | 25.5 | 0.37 | – | 350–650 keV | <1% | 20% |
Votaw and Shulman [6] | BGO/PMT | 50 × 25 × 25 | 2 | 16, Pb | γ | 7.3 | – | 6.9% at 511 keV | >350 keV | – | – |
Boellaard et al. [7] | BGO/PMT | D = 60 L = 60 | 1 | 60, Pb | γ | 23 | – | – | 30% of 511 keV | <3% /h | – |
Kudomi et al. [9] | GSO/PMT | 20 × 20 × 12.9 | 4 | 20, Pb | γ | >2.6 | – | 6.2% at 511 keV | >450 keV | – | 11% at 511 keV |
Twilite II (swisstrace)[28] | LYSO | – | 2 | – | γ | 2.4 | – | – | – | – | – |
Laymon et al. [8] | BGO/PMT | D = 25 L = 25 | 2 | – | γ | 11 (15O) | – | 19% at 511 keV | 400–1360 keV | <0.6% | – |
Breuer et al. [11] | LSO/APD | 50 × 40 × 30 | 2 | 40, W | γ | – | – | 18.5% at 511 keV | 350–1000 keV | <1% | 22% at 511 keV |
Yamamoto et al. [10] | GSO/PMT | 10 × 20 × 0.5 | 4 | 4, W | β +/γ | – | – | 8.6% (18F) | >80 keV | – | 18.5% at 511 keV |
Convert et al. [12] | Si photodiode | 30 × 3 | 1 | <13, W | β + | – | 23 | 7.1% (18F) | – | – | – |
Convert et al. [13] | Si photodiode | 16 × 2 | 1 | – | β + | – | 23–51 | 39% (18F) | – | – | – |
Roehrbacher et al. [29] | LYSO/PMT | D = 25 L = 25 | 2 | 17, Pb | γ | – | 3.7 | 6.5% (18F) | 415–680 keV | – | 23% |