Detector replacement
6:00
Removing the failing detector assembly, installing a replacement NaI(Tl) + PMT module, and verifying the swap with a check-source measurement.
Most manufacturers orphan their equipment after ten or fifteen years. We never have. The Genesys 5000 series, last manufactured well over a decade ago, is still in active service in nuclear medicine departments and research labs around the world. Below: our archived service videos, produced by LTI engineering, for the biomeds and service technicians supporting these legacy instruments today. If you have a 5000 in service and need parts or technical assistance, contact us directly — we still ship the parts, we still answer the questions, and we still know every board on the schematic.
The Genesys 5000 series was a heavy floor-model gamma counter built for high-throughput RIA work. Many were installed in the late 1990s and early 2000s, and many are still running. Some labs have replaced theirs with our newer Genesys™ Genii or Gamma 1 instruments, on the same platform. Others kept their 5000 because it does the job, and the new one isn’t materially better at the assays they actually run. Both choices are reasonable.
What's not reasonable, in our view, is leaving those customers without support. So we don’t. We still stock most of the field-replaceable parts. We still have the schematics on the wall in the engineering room. The same engineering team that designed the 5000 is the team that supports it today — and the videos below were produced for our service technicians at the time, by those same engineers. They’re archival quality (352×288 by today’s standards), but the procedures haven’t changed.
If you own a Genesys 5000 and need help — whether that’s a gain adjust on a sluggish detector, a CPU board swap, or just a question about a bizarre error code — call us or email service@labtechinc.com. We answer the phone.
Click any video to play. These are real procedure videos produced by LTI engineering for our service technicians during the 5000’s active production years. The video quality is archival (352×288, ~2000s-era CIF) — that’s the point. If you’re working on a 5000 today, these are the procedures the people who built it would walk you through.
If you eventually do replace your 5000, the same Genesys-platform detector design carries forward into the current Genii (multi-well) and Gamma 1 (single-well) instruments. Same crystal architecture, same calibration model, same UI language. The transition is gentle — your operators already know how it works.
Multi-well RIA gamma counter on the modern platform. 1 through 10 well configurations. 13-minute 100-tube assays, I-125 tracer-based calibration (no calibrated source needed for I-125), 100% solid-state.
View Genii →Single-well sibling of the Genii. Same Genesys-platform detector. Calibrate with Co-57, Cs-137, or I-125 (or use the peak-ratio efficiency calculation). For labs that don’t need ten wells but want the same engineering depth.
View Gamma 1 →Tell us what symptom you’re seeing, what part you suspect, or what error message you’re reading. We’ll get the right part shipped or the right engineer on the phone.