Table 2.
Comparison of the key parameters determining the jitter performance for different sensors. Capacitance (Cd), current duration (tr) and charge (Q) allow to calculate the expected jitter with equation (4), which can be compared to typical measured performance.
| Sensor | area mm2 | capacitance Cd (pF) | current duration tr (ns) | Charge Q (fC/MIP) | expected jitter ps rms | measured jitter |
|---|---|---|---|---|---|---|
| Si pixel | 0.01 | 0.1–1 | 1–5 | 1–4 | 4–90 | 300–3000 |
| PIN diode | 1–10 | 1–10 | 1–5 | 1–4 | 40–900 | |
| APD | 1–10 | 5–50 | 1–5 | 5–50 | 10–400 | 100–1000 (Bornheim et al 2017) |
| LGAD | 1–5 | 1–5 | 0.5–1 | 5–50 | 3–20 | 20–200 (Cartiglia etal 2017, de La Taille et al 2018) |
| PMT | 100–10 000 | 5–10 | 1–5 | 100–1000 | 1–5 | |
| SiPM | 1–5 | 50–500 | 0.1 | 10–100 | 3–300 | 50–500 (Gundacker et al 2019) |
| RPC | 100–500 | 0.1–5 | 1000 | 3–30 | 50–500 |