Concept visualization · not a field solution or built hardware
Current evidenceLiterature + analytical modelNo measured ARLO shielding benefit
01
Maintain the intended cold state
The preliminary operating assumption is continuous cooling and controls through eclipse. Routine field shutdown every orbit is not assumed: cycling may introduce charging loss, thermal disturbance and mechanical loads. Thermal inertia may allow alternative duty cycles, but that requires a transient model and verified temperature margin.
02
Separate stored field energy from battery energy
Magnetic energy is U = ½LI². It is not available as an ordinary battery reserve without a designed recovery system. An energization event requires at least U/η input energy, plus other ramp and cooldown loads. Inductance, current, supply efficiency and permitted ramp time remain undefined; the steady-state calculator excludes this event.
03
Two reserves, different purposes
Eclipse storage covers a recurring loss of sunlight. Fault reserve covers a defined contingency such as a missed recharge opportunity or cooler switchover. The calculator includes a stated sizing margin, but does not prove any specific fault endurance or redundant-string capability. Battery capacity must also satisfy charge acceptance, discharge rate, temperature and cycle-life requirements.
04
An orderly degraded state
Define alarms and actions for rising cold-tip temperature, declining battery state of charge, failed cooling and quench detection. Preserve essential station functions and a passive crew-protection baseline. A controlled ramp-down and a quench dump are different cases; stored energy, voltage and heat discharge must have a verified destination.
05
The next model is time-resolved
Run sunlight and eclipse histories through array pointing, battery state of charge, cooler performance and thermal capacitance. Test worst-case eclipse, failed equipment and delayed recovery. No eclipse duration or default reserve on this page is a confirmed ARLO mission requirement.
Research foundations
External work informs the study; it does not validate ARLO. Review date: 24 October 2026. Source access depth is stated below.
We are defining a research scope for radiation transport, superconducting engineering and optical-material testing. No shield is offered for sale or operational use.