Customer orders arrive against a catalogue. Activity is specified at delivery, not at end of irradiation — the decay between the two is what the schedule has to solve for.
Order ORD-2291
Customer
Cerlum Labs · radiopharmacy
Product
Lu-177 n.c.a.
Activity at delivery
3.70 GBq
Delivery window
2026-09-14, 06:00–09:00
Route
Courier, 4 h transit
Recurrence
Weekly, standing
Delivery activity is the contracted quantity. End-of-irradiation activity is derived, not entered.