VITUS
Modules

KETEK’s VITUS Silicon Drift Detectors (SDD) are the state-of-the-art X-ray detectors based on siliconsubstrate. Their typical X-ray energy range is between 0.2 keV and 30 keV. They are used in applications such as EDX, EDS, XRF, TXRF in bench top as well as in handheld based systems. Due to their wide operating temperature range they are especially suited for industrial applications.

Outstanding performance

Spectrum acquired with VITUS SDD at 1 µs peaking time.

Energy resolution FWHM down to 126 eV for Mn Kα at 1 µs peaking time.

Spectrum acquired with VITUS SDD at 3 µs peaking time.

Energy resolution FWHM down to 123 eV for Mn Kα at 3 µs peaking time.

Spectrum showing the outstanding performance of the VITUS SDDs in low-energy regime. FWHM of 42 eV for C Kα line.

Unprecedented low-energy performance down to Li @ 53 eV

Low-energy spectrum acquired with VITUS SDD showing the Li and O Kα lines.

Product Portfolio

C = CUBE class

	class	H7	H20	H30	H50	H80	H150	H7LE	H20LE
COLLIMATED AREA (mm²)	C	7	20	30	50	80	150	7	20
ACTIVE AREA (mm²)	C	10	30	40	65	109	170	10	30
WINDOW	C	8 μm Be	8 μm Be	8 μm Be	12.5 μm Be	25 μm Be	25 μm Be	AP3.3 polymer	AP3.3 polymer
COOLING PERFORMANCE MAX Δ T @ 20°C HEAT SINK	C	75	75	75	75	75	90	65	65
AMPLIFICATION STAGE	C	ASIC	ASIC	ASIC	ASIC	ASIC	ASIC	ASIC	ASIC
OPTIMAL PEAKING TIME AT MAX. COOLING	C	1 μs	1 μs	1 μs	1 μs	1 μs	1 μs	1 μs	1 μs
GUARANTEED FWHM at MnK_α (5.9 keV) [eV]	C	≤ 129	≤ 129	≤ 129	≤ 129	≤ 136	≤ 136	≤ 129	≤ 129
GUARANTEED P/B	C	> 15,000	> 15,000	> 15,000	> 15,000	> 15,000	> 15,000	> 10,000	> 10,000
GUARANTEED P/T	C	> 2,000	> 2,000	> 2,000	> 2,000	> 2,000	> 2,000	> 2,000	> 2,000
ABSORPTION DEPTH Si	C	450 μm	450 μm	450 μm	450 μm	450 μm	450 μm	450 μm	450 μm
PEAK SHIFT STABILITY UP TO 100 kcps	C	< 1 eV	< 1 eV	< 1 eV	< 1 eV	< 1 eV	< 1 eV	< 1 eV	< 1 eV
MAX. INPUT COUNT RATE	C	2,000 kcps	2,000 kcps	2,000 kcps	2,000 kcps	2,000 kcps	2,000 kcps	2,000 kcps	2,000 kcps
ON-CHIP COLLIMATOR	C	multilayer	multilayer	multilayer	multilayer	multilayer	multilayer	palladium	palladium
		Learn More	Learn More	Learn More	Learn More	Learn More	Learn More	Learn More	Learn More

Features

Energy resolution down to 123 eV FWHM at Mn-Kα
Excellent peak-to-background
Operable at an ambient temperature of up to +80 °C with excellent performance
High count rate capability up to 2,000 kcps
Efficient integrated Peltier element
No liquid nitrogen cooling required
Radiation hardness during more than 10 years standard count rate exposure
Collimated areas from 7 mm² to 150 mm² available

Functional Block Diagram

Applications

XRF
µ-XRF
EDX
EDS
TXRF
XRD
Handheld

VITUS Modules