QUDL · Illustrative preview

QUDL: How it works

A self-playing walkthrough of the QUDL calibration workflow, from specifying an instrument to carrying the same calibration onto a second detector platform. Every value shown is an illustrative worked example from a simulation-stage method, not a measured result. It plays like a video, loops automatically, and you can pause or scrub at any time.

Physivitis

Quantum detection, calibrated

self-playing

Illustrative walkthrough. QUDL is validated in simulation and not yet on hardware. Patent pending GB2613829.7.

Scene 1 of 7 · Specify the Instrument

Acceptance window

5 mm aperture, 1 microsecond gate

where and when the detector is open

Detector efficiency

0.60

fraction of arrivals that register

Detection model

photon counting

what a click represents

The instrument is described before anything is predicted. Detector geometry, timing and response are inputs to the calculation, not corrections applied afterwards.

System description

Routes to the detector

Loss present

yes

Memory effects

modelled

Every route by which a signal can reach the detector is represented, together with the loss and memory along it.

One reference measurement

Step 1

Known source applied

reference rate 1,000,000 per second · gate 1 microsecond

Step 2

Counts measured

1,000 counts

Step 3

Coefficient determined

κ_M = 633

counts per gate

Worked example from the published framework. Illustrative only.

One reference measurement fixes the calibration coefficient. It absorbs the readout chain, gain and normalisation in a single constant.

Without calibration

1.32

dimensionless, not comparable between instruments

With QUDL

874 counts

plus or minus 35, absolute and comparable

Uncertainty is carried through from the calibration, not estimated separately.

Predictions arrive in the units the instrument actually reports, with stated confidence.

Drift monitored

Recalibration scheduled on evidence

The coefficient is tracked rather than assumed constant, so recalibration is scheduled when the evidence supports it.

Instrument A

Acceptance window

5 mm aperture, 1 microsecond gate

Detector efficiency

0.60

Detection model

photon counting

Instrument B

Acceptance window

12 mm aperture, 10 microsecond gate

Detector efficiency

0.88

Detection model

coincidence counting

same method, re-determined coefficient

Photonic

Superconducting

Scintillator

The method transfers between detector platforms and operating regimes. The coefficient is re-determined for each, the framework does not change.

One method. Any detector. Absolute, comparable counts.

Simulation-stage. Patent pending GB2613829.7. Seeking hardware, clinical and OEM validation partners.

Request the technical brief Discuss a validation partnership

The instrument is described before anything is predicted. Detector geometry, timing and response are inputs to the calculation, not corrections applied afterwards.

Back to QUDL