1. Plan a scan series

For a series of N equal-length scans separated by a fixed dead time, the total run time is T = N · tscan + (N − 1) · tdead. Pick which quantity to solve for; the remaining three boxes are your inputs. Durations accept seconds (600), colon notation (10:00, 1:30:00), or unit tokens (1h 30m, 10 min). The optional monitor/charge rate converts the count time into a per-scan accumulation target (e.g. Coulombs of proton charge).

Plan results

2. Estimate finish time from a sequence in progress

Provide a calibration window from the run so far — the start time of scan A and the end time of scan B — to estimate the average elapsed time per scan (count plus dead), and from that the time the full sequence will finish. Scan numbers A, B, and "last completed" are absolute (i.e. they match the numbers in your beamline log); if your sequence does not start at scan 1, change the "First scan number" field accordingly. Times wrap automatically across one midnight; for runs longer than ~24 h enter the calibration window inside a single day.

Progress estimate