HPGe Planar Detectors

LIQUID NITROGEN COOLED DETECTOR FOR GAMMA AND X-RAYS SPECTROSCOPY

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DESCRIPTION:

Germanium detectors are semiconductor diodes having a p-i-n structure in which the intrinsic (I) region is sensitive to ionizing radiation, particularly x rays and gamma rays.
When photons interact with the material within the depleted volume of a detector, charge carriers (holes and electrons) are produced and are swept by the electric field to the P and N electrodes. This charge, which is in proportion to the energy deposited in the detector by the incoming photon, is converted into a voltage pulse by an integral charge sensitive preamplifier.
Because germanium has relatively low band gap, these detectors must be cooled with Liquid nitrogen (temperature of 77 °K)

APPLICATION:

Detection of Gamma and X-rays in nuclear energetics and environmental control, in industry and scientific research, in medicine and other applications.

STANDARD SET:

The HPGe Planar Detectors complete set is composed by the following components:

  • HPGe planar detector
  • Preamplifier with cooled input stage
  • Dewar vessel
  • Cable set
  • Documentation

In addition to standard supply, the following accessories are available upon request:

  • Hexagon Multichannel Analyzer
  • Analytical Software packages:
    • quantitative and qualitative analysis
    • Gamma spectra modeling and efficiency registration calculation for complex geometry objects
    • extended radionuclide library
  • Liquid nitrogen storage and filling system
  • Liquid nitrogen sensor and monitor
  • Cable set extension
Model Diameter (mm) Detector Sensitive Area – Area (mm2) Detector Sensitive Area – Thickness (mm) Energy Resolution FWHM at 5.9 keV  (eV) Energy Resolution FWHM at 122 keV (eV)
GPD – 05 145 5 20 6 145 465
GPD – 08 155 8 50 6 155 485
GPD – 12 165 12 100 7 165 490
GPD – 12 160 12 100 10 160 490
GPD – 16 180 16 200 11 180 495
GPD – 25 300 25 500 13 300 545
GPD – 36 360 36 1000 13 360 585
GPD – 36 300 36 1000 15 300 560
GPD – 45 400 45 1590 14 400 600
GPD – 50 400 50 2000 15 400 600
GPD – 50 600 50 2000 20 600 750
GPD – 50 460 50 2000 35 460 680
GPD – 60 500 60 2800 25 400/500 700
GPD – 70 560 70 3800 25 560 750
GPD – 70 600 70 3800 30 600 780
GPD – 80 620 80 5000 30 620 800
GPD – 80 720 80 5000 30 480 720
GPD – 90 500 90 6500 30 500+/-30 750

Plenty of cryostat geometries are available

Highlights

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2017-07-21T13:07:21+00:00