Detector wear
Hi folks,
I'm curious to know the approximate rate at which your optimal detector voltage increases and consequently how long your detectors typically lasts. We recently had our detector replaced (for the first time since having our instrument installed), and saw our optimal DV jump from ~1300 with our old detector to ~2200 with the new one together with a nice boost in tuning and bead signal intensity. However, since then the DV has been steadily increasing quite quickly and in just over a month it is now up to -1600. This is a much bigger drift than we ever saw with our old detector and seems pretty unusual to me, but I was wondering what other people's experience has been.
Our instrument is admittedly quite heavily used, but not really any more so than with our old detector, and we also haven't noted particularly high background in any of our samples or anything that should be causing obvious damage to the detector.
Thanks,
Adeeb
I'm curious to know the approximate rate at which your optimal detector voltage increases and consequently how long your detectors typically lasts. We recently had our detector replaced (for the first time since having our instrument installed), and saw our optimal DV jump from ~1300 with our old detector to ~2200 with the new one together with a nice boost in tuning and bead signal intensity. However, since then the DV has been steadily increasing quite quickly and in just over a month it is now up to -1600. This is a much bigger drift than we ever saw with our old detector and seems pretty unusual to me, but I was wondering what other people's experience has been.
Our instrument is admittedly quite heavily used, but not really any more so than with our old detector, and we also haven't noted particularly high background in any of our samples or anything that should be causing obvious damage to the detector.
Thanks,
Adeeb
Adeeb Rahman
Icahn School of Medicine at Mount Sinai, NYC
Icahn School of Medicine at Mount Sinai, NYC