Well Detectors

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Nuclemed - click to enlarge

All well shields contain a 2" x 2" NaI(Tl) crystal, tube base and PM tube for the highest quality in counting statistics. The shield is lined with 0.25" thick copper or brass to minimize interference from lead x-rays and is finished in an attractive durable textured epoxy paint. We offer two shield thicknesses: 1" is standard, and 2" is the heavy shield. Both are suitable for use with the CAPTUS 3000 and CAPTUS 600. Larger crystal sizes up to 3" are available upon request.


  • Completely shielded for low background
  • Accommodates large samples
  • 3 3/4 ? geometry

5430-0069 Well Detector (2" Shield)
5420-2033 Well Detector (1" Shield) CAPTUS 3000 CAPTUS 600 & Caprac-R