Table 1.

Performance of conventional X-ray detectors for medical imaging

	Atomic number	Applied electric field (V μm−1)	μτ product (cm2 V−1)	Sensitivity (μC  Gy−1air cm−2)	Spatial resolution (lp mm−1)	Lowest detectable dose rate (μGyair s−1)	Refs
Sia	14	0.5	>1	8	4.5	<8300	24, 26
a-Sea	34	10	10−7	20	~15	5.5	21, 70
HgI2a	53,80	10	10−4	1600	3.93	10	84
CZTa	48, 52	0.1–1	0.01	318	10	50	85, 86
MAPbBr3a	35, 82	0.05	0.012	2.1 × 104	10	0.039	18, 66
MAPbI3a	53, 82	0.24	0.010	1.1 × 104	3	<5000	64
Cs2AgBiBr6a	47, 53, 55, 83	0.025	0.0060	105	—	0.060	47
CsI(Tl)b	53, 55, 81	—	—	5370	10	0.18	27, 28
GOS(Tb)b	64, 65	—	—	7.3	4.75	—	29

^aThe direct X-ray detection by semiconductor

^bThe indirect X-ray detection by scintillator