Reverse-Electrode Coaxial Ge Detectors


View full specifications (PDF)

Features

  • Ultra-thin ion implanted contacts
  • Spectroscopy from 3 keV up
  • Radiation damage resitiant
  • Excellent timing resolution
  • High energy rate capability
  • Diode FET protection
  • Warm-up/HV shutdown
  • High rate indicator

Description

The Reverse-Electrode detector (REGe) is similar in geometry to other coaxial germanium detectors with one important difference. The electrodes of the REGe are opposite from the conventional coaxial detector in that the p-type electrode, (ion-implanted boron) is on the outside, and the n-type contact (diffused lithium) is on the inside. There are two advantages to this electrode arrangement – window thickness and radiation damage resistance.

The ion-implanted outside contact is extremely thin (0.3 mm) compared to a lithium-diffused contact. This, in conjunction with a thin cryostat window, extends the response to below 5 keV, giving this detector a dynamic range of 2000:1. Needless to say, this dynamic range exceeds the 100:1 offered by most analysis systems so the detector is unlikely to be covering the range of 5 keV to 10 MeV at once.

The radiation damage resistance properties of the REGe detector come about for the following reason. It has been found that radiation damage, principally due to neutrons or charged particles, causes hole trapping in germanium. Unlike the case of the conventional coaxial detector, holes are collected by the outside electrode of the REGe detector. Since a much greater amount of the active detector volume is situated within a given distance, D R, of the outside contact, than of the inside contact (Volume » R2) it follows that, on average, holes have less distance to travel if they are attracted to the outside contact than if they are attracted to the inside contact. With less distance to travel, they are less likely to be trapped in radiation damaged material. The extent of the improved resistance to radiation damage depends on other facts, of course, but experimental evidence suggests that the REGe detector may be 10 times as resistant to damage as conventional Coaxial Ge detectors.


View full specifications (PDF)

Top of Page

Note to our International Customers: The CANBERRA Online Quoting System is only available for our US customers. If you would like a quote on this product, please contact your Local Sales Office for assistance.

We apologize for the inconvenience.

Models
GR1018: REGe GR1018 Request a Quote
GR1019: REGe GR1019 Request a Quote
GR1020: REGe GR1020 Request a Quote
GR1318: REGe GR1318 Request a Quote
GR1319: REGe GR1319 Request a Quote
GR1320: REGe GR1320 Request a Quote
GR1518: REGe GR1518 Request a Quote
GR1519: REGe GR1519 Request a Quote
GR1520: REGe GR1520 Request a Quote
GR1818: REGe GR1818 Request a Quote
GR1819: REGe GR1819 Request a Quote
GR1820: REGe GR1820 Request a Quote
GR2018: REGe GR2018 Request a Quote
GR2019: REGe GR2019 Request a Quote
GR2020: REGe GR2020 Request a Quote
GR2519: REGe GR2519 Request a Quote
GR2520: REGe GR2520 Request a Quote
GR2521: REGe GR2521 Request a Quote
GR3019: REGe GR3019 Request a Quote
GR3020: REGe GR3020 Request a Quote
GR3021: REGe GR3021 Request a Quote
GR3520: REGe GR3520 Request a Quote
GR3521: REGe GR3521 Request a Quote
GR3522: REGe GR3522 Request a Quote
GR4021: REGe GR4021 Request a Quote
GR4022: REGe GR4022 Request a Quote
GR4023: REGe GR4023 Request a Quote
GR4521: REGe GR4521 Request a Quote
GR4522: REGe GR4522 Request a Quote
GR4523: REGe GR4523 Request a Quote
GR5022: REGe GR5022 Request a Quote
GR5023: REGe GR5023 Request a Quote
GR5024: REGe GR5024 Request a Quote
GR5522: REGe GR5522 Request a Quote
GR5524: REGe GR5524 Request a Quote
GR5526: REGe GR5526 Request a Quote
GR6022: REGe GR6022 Request a Quote
GR6024: REGe GR6024 Request a Quote
GR6026: REGe GR6026 Request a Quote
GR6523: REGe GR6523 Request a Quote
GR6525: REGe GR6525 Request a Quote
GR6527: REGe GR6527 Request a Quote
GR7023: REGe GR7023 Request a Quote
GR7025: REGe GR7025 Request a Quote
GR7027: REGe GR7027 Request a Quote


Contact Us
Email Us or via phone

In the United States
(800) 243-3955

Outside United States:
(203) 238-2351

Online Quoting
Reference Material