Table 2.
Detailed γ-ray detector for energy spectrum
| Atomic number | Linear attenuation coefficients to 662 keVa (cm−1) | Bandgap (eV) | Bulk resistivity (Ω cm) | μτ product (cm2 V−1) | Energy resolution (%) | Refs | |
|---|---|---|---|---|---|---|---|
| HPGeb | 32 | 0.01 | 0.67 | 102–103 | >1 | 0.2 | 33, 87 |
| CZTb | 48, 52 | 0.05 | 1.5–1.6 | 1010 | 0.004–0.01 | 0.5 | 34, 35 |
| TlBrb | 35, 81 | 0.24 | 2.68 | 1011–1012 | 0.0005 | 1 | 36 |
| Halide perovskiteb | 35, 53, 55, 82, 83 | 0.09 | 1.5–3.1 | 107–1010 | 0.001–0.01 | 3.9 | 46, 48, 72, 81 |
| NaI(Tl)c | 53, 81 | 0.01 | 3.0 | — | — | 5.6 | 2 |
a Only photoelectric attenuation process is considered to calculate the attenuation coefficients
bThe direct γ-ray detection by semiconductor
cThe indirect γ-ray detection by scintillator