德国ketek是世界上最早生产硅漂移探测器的公司产品具备高能量分辨、高计数率、高稳定性、兼容性强、操作简便等优点，多次随美国火星探测器登陆火星，为人类获得了许多火星上物质主要成分的第一手资料。目前仍有7年前发射到火星的ketek探测器可以正常工作。
VIRUS系列产品性能参数 | VITUS Silicon Drift Detectors | | | Premium Class | Standard Class | | Type | Active Area
(mm²) | Window | Cooling
Performance
Max ∆ T @ 30°C heat sink | Guaranteed
FWHM
@ 8µs PT [eV] | Guaranteed
P/B | Typ. FWHM @ 100kcps
dead time <50% [eV] | Guaranteed
FWHM
@ 8µs PT [eV] | Guaranteed P/B | Typ. FWHM @ 100kcps
dead time <50% [eV] | | H7 | 7 | 8µm Be | 75 | ≤ 133 | > 15,000 | ≤ 139 | ≤ 149 | > 6,000 | ≤ 149 | | H20 | 20 | 8µm Be | 75 | ≤ 133 | > 15,000 | ≤ 139 | ≤ 149 | > 6,000 | ≤ 149 | | H30 | 30 | 8µm Be | 75 | ≤ 133 | > 15,000 | ≤ 139 | ≤ 149 | > 6,000 | ≤ 149 | | H50 | 50 | 12.5µm Be | 75 | ≤ 133 | > 15,000 | ≤ 139 | ≤ 149 | > 6,000 | ≤ 149 | | H80 | 80 | 25µm Be | 75 | ≤ 136 | > 10,000 | ≤ 144 | ≤ 160 | > 5,000 | ≤ 180 | | R100 | 92 | 25µm Be | 75 | ≤ 136 | > 400 | ≤ 144 | ≤ 160 | > 400 | ≤ 180 |
| VITUS Silicon Drift Detectors with low-energy window | | | Premium Class | Standard Class | | Type | Active Area
(mm²) | Window | Cooling
Performance
Max ∆ T @ 20°C heat sink | Guaranteed
FWHM
@ 8µs PT [eV] | Guaranteed
P/B | Typ. FWHM @ 100kcps
dead time <50% [eV] | Guaranteed
FWHM
@ 8µs PT [eV] | Guaranteed P/B | Typ. FWHM @ 100kcps
dead time <50% [eV] | | H7LE | 7 | AP3.3
low-energy
window | 55 | ≤ 133 | > 10,000 | ≤ 139 | ≤ 139 | > 6,000 | ≤ 144 | | H15LE | 15 | AP3.3
low-energy
window | 55 | ≤ 136 | > 10,000 | ≤ 139 | ≤ 144 | > 6,000 | ≤ 144
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