Products | Vitus H15LE SDD

30 mm² collimated to 15 mm²
X-Ray Silicon Drift Detectors for
EDX  -  XRF  -  TXRF  -  Applications

KEY PARAMETERS VITUS H15LE

ClassPremiumStandard
Energy Resolution< 136 eV< 144 eV
Peak to Background> 10000> 6000
Peak to Tail > 2000> 1000
Absorption Depth          450 µm Si
Peak Shift Stability
up to 100 kcps		          
           < 1eV
Max. input countrate         500.000 cps
Windows                       AP3.3 Polymer
Cooling Performance         ∆T > 55K
Collimator       Zr or multilayer
REGISTER HERE AND GET THE DETAILED
PRODUCT INFO DATA  SHEET
State of the Art Detector for Your Application
VITUS H20 SDD

Short Facts

  • AP3.3 low energy window with transmission
    down to 200eV
  • low capacitance
  • very good energy resolution
  • high count rate capability up to 500kcps
  • integrated peltier element
  • no liquid nitrogen cooling
  • low leakage current
  • radiation hardness during more than
    10 years standard count-rate exposure
  • "easy to use" - no voltage adjustment


Energy Resolution

to the top

The energy resolution of the VITUS H15-LE SDD is dependent on the operating temperature and the shaping time. To achieve good results KETEK recommends an operating temperature below -20°C. Typical operating conditions are -35°C and an analogue shaping time of 4 µs.

The temperature dependency is more significant for longer shaping times.

Finding the optimum operating conditions depends very much on the ambient temperature and on the count rate for the specific application.


Count Rates

to the top

The VITUS H15-LE SDD detector offers a high count rate capability up 500 kcps with weak FWHM dependency as shown in the graph for different analogue shaping times.

The data of the example plot has been acquired with a VITUS H15-LE Standard Class detector at an operating temperature of -35°C.

The plots show values up to the maximum reasonable dead time of 60%.


Operation

to the top

  • pin wiring according VITUS Operation Block Diagram
  • detector operating voltages should be RC low-pass filtered and linear regulated (KETEK electronics recommended)
  • KETEK reset type charge sensitive preamplifier with internal triggered reset pulses recommended
  • short wiring length between detector and preamplifier recommended
  • detector may only be operated with an appropriate heat sink

VITUS Operation Block Diagram
VITUS Operation Block Diagram

SDD Voltage and Current Requirements

Operation Requirements
SDD Voltages and Currents
Ring1 (R1)  -20 V ± 5 V 10 µA typ.
RingX (RX)  -130 V ± 20 V 10 µA typ.
Back  -60 V ± 5 V <1 nA

Voltage Requirements of the included FET

Operation Requirements
FET
Drain 3 V ± 0.5 V  3 mA
Source 0 V
Bulk -5 V ± 3 V
Reset 1 V  1 µs
Feedback ramped output

Operation of TEC and Temperature Monitor

Operation Requirements
Peltier Element 4 V 1 A max
Temperature Monitor slope 2.40 mV/K
520 mV @ +20°C		 1 µA

VITUS H15-LE Pin Assignment
VITUS H15-LE Pin Assignment

 


Geometries

to the top

The VITUS H15-LE SDD is encapsulated with a bevelled cap for optimum beam geometries in your application. The used TO8 housing can be easily mounted by the M4 stud. 

VITUS H15-LE Detector Geometry
VITUS H15-LE Detector Geometry

Versions and Ordering Codes

to the top

Available versions and ordering codes
for Vitus-H15-LE SDD:

version and ordering codes

Accessories

to the top

Available KETEK Signal Processing Electronics