Datasets:

ClarusC64
/

fusion-divertor-heat-flux-failure-horizon-and-control-routing-v0.1

id stringclasses 10 values	scenario stringclasses 10 values	upstream_temp_kev float64 1.6 2.1	upstream_density_1e19m3 float64 4 5	upstream_power_to_sol_mw int64 66 74	strike_point_location_mm int64 8 18	divertor_target_temp_c int64 560 940	divertor_leg_density_1e19m3 float64 8 12.8	neutral_pressure_pa float64 1.6 3.4	radiation_fraction float64 0.27 0.5	detachment_indicator_0to1 float64 0.1 0.78	coherence_score_0to1 float64 0.55 0.91	peak_heat_flux_mw_m2 float64 8.2 15.4	heat_flux_limit_mw_m2 float64 15 15	baseline_expected_heat_flux_mw_m2 float64 6.6 15.2	delta_neutral_pressure_pa float64 -0.6 0.2	delta_radiation_fraction float64 -0.04 0.06	delta_strike_point_mm int64 -4 1	failure_horizon_s int64 8 120	recommended_control_action stringclasses 7 values	control_priority stringclasses 4 values	confidence_0to1 float64 0.67 0.88	rationale stringclasses 10 values	notes stringclasses 10 values	constraints stringclasses 1 value
FDHFC-001	stable_safe	1.7	4.6	66	15	640	10.5	2.9	0.44	0.62	0.91	8.2	15	8.5	0	0	0	120	hold	monitor	0.78	Heat flux well below limit and detachment stable	No action needed	Return JSON: failure_horizon_s, recommended_control_action, control_priority, confidence_0to1, rationale
FDHFC-002	approaching_limit_power_ramp	2	4.1	72	10	910	8.1	1.7	0.3	0.12	0.66	14.6	15	14.8	0	0	0	45	increase_gas_puff	immediate	0.74	Power rise compresses margin; needs higher neutral pressure to sustain detachment	Prevent spike	Return JSON: failure_horizon_s, recommended_control_action, control_priority, confidence_0to1, rationale
FDHFC-003	neutral_loss_reattach_risk	1.8	4.9	69	11	790	9.1	1.9	0.29	0.3	0.58	13.2	15	11.2	-0.4	-0.02	-1	35	increase_gas_puff	immediate	0.79	Neutral pressure dropping and detachment weakening; reattachment likely	Clamp heat flux	Return JSON: failure_horizon_s, recommended_control_action, control_priority, confidence_0to1, rationale
FDHFC-004	radiation_starved	1.8	4.7	70	11	760	9.6	2.2	0.35	0.48	0.74	10.8	15	10.2	-0.3	-0.04	0	60	raise_impurity_seeding	high	0.71	Radiation fraction falling; detachment will erode; add radiators	Restore radiative cooling	Return JSON: failure_horizon_s, recommended_control_action, control_priority, confidence_0to1, rationale
FDHFC-005	geometry_triggered_spike	1.9	4.4	71	8	820	8.7	1.9	0.31	0.22	0.6	14	15	11.5	-0.1	-0.02	-4	18	move_strike_point	immediate	0.83	Strike point moved onto hotter tile region; geometric focusing drives spike	Reposition strike	Return JSON: failure_horizon_s, recommended_control_action, control_priority, confidence_0to1, rationale
FDHFC-006	oscillatory_detach	1.8	4.8	69	12	700	10.2	2.6	0.4	0.55	0.68	12	15	9.4	-0.2	-0.03	0	30	stabilize_puff_feedback	immediate	0.72	Oscillation reduces effective margin; stabilize gas puff feedback loop	Damp oscillation	Return JSON: failure_horizon_s, recommended_control_action, control_priority, confidence_0to1, rationale
FDHFC-007	impurity_lock_high_risk	1.6	5	68	18	560	12.8	3.4	0.5	0.78	0.77	14.2	15	6.6	0.2	0.06	1	22	reduce_impurity_seeding	high	0.67	Too much radiation plus high power pushes instability; avoid detachment collapse mode	Avoid MARFE-like behavior	Return JSON: failure_horizon_s, recommended_control_action, control_priority, confidence_0to1, rationale
FDHFC-008	attached_fragile_high_flux	1.8	4.2	70	9	840	8.4	1.7	0.27	0.14	0.62	13.8	15	12.9	-0.2	-0.01	-1	25	increase_gas_puff	immediate	0.76	Attached state with shrinking margin; push toward partial detachment	Create buffer	Return JSON: failure_horizon_s, recommended_control_action, control_priority, confidence_0to1, rationale
FDHFC-009	limit_breach_imminent	2.1	4	74	9	940	8	1.6	0.28	0.1	0.55	15.4	15	15.2	0	0	0	8	trigger_power_cut	emergency	0.88	Heat flux at or above limit; immediate mitigation required	Emergency cut	Return JSON: failure_horizon_s, recommended_control_action, control_priority, confidence_0to1, rationale
FDHFC-010	control_recovery_success	1.7	4.7	68	13	720	9.8	2	0.38	0.52	0.7	11.6	15	9.6	-0.6	-0.03	0	40	increase_gas_puff	immediate	0.73	Neutral loss trending; control action needed to prevent reattachment and flux rise	Preemptive action	Return JSON: failure_horizon_s, recommended_control_action, control_priority, confidence_0to1, rationale

What this dataset tests

Failure horizon reasoning for divertor protection.

The system can be “nearly detached” while the heat flux margin collapses.

This dataset forces the model to do two things.

Predict time-to-limit.

Route the right control action.

Inputs

upstream_temp_kev
upstream_density_1e19m3
upstream_power_to_sol_mw
strike_point_location_mm

divertor_target_temp_c
divertor_leg_density_1e19m3
neutral_pressure_pa
radiation_fraction

detachment_indicator_0to1
coherence_score_0to1

peak_heat_flux_mw_m2
heat_flux_limit_mw_m2
baseline_expected_heat_flux_mw_m2

delta_neutral_pressure_pa
delta_radiation_fraction
delta_strike_point_mm

Required output

Return JSON

failure_horizon_s
recommended_control_action
control_priority
confidence_0to1
rationale

Example { "failure_horizon_s": 22, "recommended_control_action": "increase_gas_puff", "control_priority": "immediate", "confidence_0to1": 0.76, "rationale": "Neutral pressure falling and detachment weakening; heat flux margin compressing. Increase gas puff to stabilize detachment before reattachment spike." }

Allowed actions

hold
increase_gas_puff
raise_impurity_seeding
reduce_impurity_seeding
move_strike_point
stabilize_puff_feedback
trigger_power_cut

Priority meaning

monitor
high
immediate
emergency

Version

v0.1

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