德國ketek是世界上zui早生產硅漂移探測器的公司產品具備高能量分辨、高計數率、高穩定性、兼容性強、操作簡便等優點,多次隨美國火星探測器登陸火星,為人類獲得了許多火星上物質主要成分的*手資料。目前仍有7年前發射到火星的ketek探測器可以正常工作。
VIRUS系列產品性能參數  
 
| 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 |