NTN REACT study plan
NTN REACT · Give each week a clear focus.
8 weeks · About 7 hours per week
Reactor Theory and Nuclear Physics
Derive and explain the six-factor formula and each factor's physical meaning, writing the derivation from memory without notes
Sketch a neutron life cycle diagram and label leakage terms for both fast and thermal neutrons
Calculate k-effective, reactivity in dollars and pcm, and reactor period using the inhour relation for three worked problems
Explain prompt and delayed neutron fractions and why delayed neutrons set the achievable reactor period
Your checkpoint
A one-page handwritten formula sheet plus worked solutions to five reactivity and period calculations, self-graded against a textbook with all errors corrected
Reactor Theory and Nuclear Physics
Describe the fission process, energy release distribution, and fission product inventory relevant to decay heat
Explain neutron moderation, macroscopic and microscopic cross sections, and the effect of temperature on resonance absorption
Compare reactivity feedback mechanisms including Doppler, moderator temperature, void, and power coefficient, stating sign and time scale for each
Solve point-kinetics problems for step and ramp reactivity insertions and interpret the resulting power response
Your checkpoint
A written 800-word comparison table and narrative of reactivity coefficients with sign, magnitude, and time constant for each, plus three solved kinetics problems
Reactor Theory and Nuclear Physics & Reactor Operations and Control
Explain xenon-135 and samarium-149 production, burnout, and equilibrium behavior, and predict post-shutdown xenon peaking
Interpret a power defect curve and describe the startup, intermediate, and power ranges of reactor operation
Explain criticality approach methods including inverse multiplication and 1/M plots, and identify conditions that invalidate them
Describe rod worth, differential and integral worth curves, and the purpose of shutdown margin
Your checkpoint
A timeline diagram of xenon reactivity from shutdown through restart with annotated values, plus a solved 1/M extrapolation problem showing predicted critical loading
Reactor Operations and Control
Describe the operator actions and indications for a reactor trip, turbine trip, and loss of feedwater heating
Explain manual and automatic control of rod position, boron concentration, and feedwater flow to hold power constant
Analyze a load-follow maneuver and identify which parameter drifts first and how it is corrected
Explain the purpose and operation of the reactor protection system and anticipated transient without scram response
Your checkpoint
A timed 60-minute practice set of 25 operations and control questions with a written explanation of every missed item
Radiation Protection and Health Physics
Define absorbed dose, equivalent dose, effective dose, and committed dose, and convert between units including gray, sievert, rad, and rem
Calculate dose rate from a point source using the inverse square law and shielding attenuation, including buildup factor use
Explain ALARA, dose limits for workers and the public, and the difference between dose limits and action levels
Describe internal contamination pathways, bioassay, and the use of protective clothing and respiratory protection
Your checkpoint
A worked problem set of ten dose, shielding, and unit-conversion calculations with a summary card of dose limits and regulatory references
Radiation Protection and Health Physics & Nuclear Safety and Emergency Procedures
Explain the bases of emergency action levels and the classification of unusual event, alert, site area emergency, and general emergency
Describe the purpose of emergency operating procedures and the transition from symptom-based to function-based response
Explain containment isolation, emergency core cooling system operation, and the key safety functions of reactivity control, core cooling, and fission product barrier integrity
Differentiate design basis accidents from beyond design basis events and explain defense in depth levels
Your checkpoint
A one-page decision flowchart mapping observable plant conditions to emergency classification levels, validated against three scenario descriptions
Reactor Systems and Components & Instrumentation and Control
Describe the primary coolant loop, pressurizer, steam generator or once-through steam generator, and their control interactions
Explain the operation of major safety systems including residual heat removal, safety injection, and containment cooling
Describe key instrumentation including neutron detectors, resistance temperature detectors, pressure transmitters, and their redundancy and diversity
Explain setpoint, deadband, hysteresis, and the difference between indication and protection channels
Your checkpoint
An annotated system diagram of the primary and safety injection flow paths with a 15-item instrumentation and control question set answered and explained
Regulatory Requirements and Documentation & Reactor Theory and Nuclear Physics & Reactor Operations and Control & Radiation Protection and Health Physics & Nuclear Safety and Emergency Procedures & Reactor Systems and Components & Instrumentation and Control
Summarize the regulatory framework covering licensing, technical specifications, and the role of the operating license and operator license
Explain the content and use of technical specifications including limiting conditions for operation and surveillance requirements
Complete two full-length timed practice exams under exam conditions and score them by domain
Build a remediation list from missed questions and close at least the top five gaps with targeted review
Your checkpoint
A domain-scored results table from two timed practice exams with a prioritized remediation list and evidence of completed review for the top five weak areas
Milestones
Week 2: Score at least 80 percent on a self-made 20-question reactor theory quiz and correctly solve three out of three point-kinetics problems without notes
Week 4: Explain aloud, in under ten minutes, the xenon transient, a 1/M criticality approach, and the response to a reactor trip, with no factual errors
Week 6: Correctly classify all three scenario descriptions in the emergency action level flowchart and score at least 75 percent on a mixed radiation protection and safety set
Week 8: Achieve at least 75 percent overall on both timed practice exams with no domain below 65 percent, and show a closed remediation list for the five weakest areas