Anyone found a reliable way to shorten recal cycles without inviting fixed-pattern noise? On a 2015 Carestream DRX-1, I’m seeing SNR dip about 10% if it sits >30 minutes; a quick dark + gain at 36°C with the tube parked restores it in under 3 minutes, but I’m looking for better cadence or temp setpoints that keep artifacts down without killing throughput.
On a 2014 DRX‑1C, locking the enclosure at 37–38°C let us run an “offset‑only” refresh every about 15 min or about 20 shots and push full gain to every 2–3 hours without FPN… If you creep past about 39°C the patterning comes back, so find your sweet spot — does your firmware have “continuous offset correction” you can toggle between cases? It’s like keeping the coffee warm instead of microwaving every cup.
Stop chasing time; tie recal to ΔT. On a 2015 DRX‑1 we hold the enclosure about 36°C, fire 2–3 dummy darks after >25 min idle, do offset-only every about 15 shots, and only push gain when ‘ΔT >0.6°C’ or at 2 h — keeps SNR flat and avoids FPN. What’s your actual temp drift over that 30‑min sit?
Quick tip: we killed the “SNR dip about 10%” by preventing the DRX‑1 from entering deep sleep — keep the bias rails alive with a lightweight keep‑alive read every about 8 minutes — then a 2‑frame dark refresh stabilizes offset without a full gain. It does bump idle temp a bit, so make sure the fan curve holds steady instead of cycling. Can you keep the panel awake between cases at your site?