Product roadmap

HPCalc is evolving toward a broader health physics workstation: calculators, validated reports, curated references, and training. This page groups current and planned execution modules by domain. Nothing here is a schedule guarantee.

Screening & training aids (read carefully)

Planned modules for internal dosimetry, skin contamination dose, and emergency / plume-style response are intended as screening or training aids only until they pass explicit validation, peer review, and (where applicable) alignment with your licensed technical basis. They are not substitutes for qualified internal dose assessments, medical physics determinations, or operational emergency decision systems.

HPCalc does not add plume dispersion physics, databases, or authentication in this roadmap phase—those boundaries remain until a future product decision.

Legend

Status: active (in this build), prototype (future partial UX), planned (design target).
Scientific risk: relative uncertainty / sensitivity until domain validation—not a regulatory classification.
Support tier: training-only (pedagogy), screening (order-of-magnitude checks), calculation support (repeatable numbers with audit trail intent).

External dose & shielding

Radioactive decay (screening)

active

Scientific risk:: Medium
Support tier:: Screening
Data sources: Bundled nuclide half-lives · User activity & time inputs
Report / provenance: Zod-validated report payload; nuclide rows carry confidence labels.

Point source / inverse square (screening)

active

Scientific risk:: Medium
Support tier:: Screening
Data sources: User distance, activity, gamma constant · Optional nuclide context
Report / provenance: Structured report with stated geometry assumptions.

Time & distance dose scaling (screening)

active

Scientific risk:: Medium
Support tier:: Screening
Data sources: User dose or rate inputs · Time/distance factors
Report / provenance: Report captures inputs and assumptions; not workload or occupancy modeling.

Narrow-beam shielding attenuation (screening)

active

Scientific risk:: High
Support tier:: Screening
Data sources: Bundled μ rows & provenance · Optional custom μ with audit fields
Report / provenance: shieldingReport extension; coefficient match transparency; no buildup model.

Unit converter

active

Scientific risk:: Low
Support tier:: Calculation support
Data sources: SI / traditional conversion tables in-app
Report / provenance: Optional unit-converter report payload.

Nuclide reference browser

active

Scientific risk:: Medium
Support tier:: Calculation support
Data sources: Bundled nuclides.json (validated at load)
Report / provenance: Data confidence shown per row; not a substitute for evaluated nuclear data libraries.

Contamination & surveys

Skin contamination screening worksheet

active

Scientific risk:: High
Support tier:: Screening
Data sources: User radionuclide label · Count rates and declared efficiency · Area and duration for documentation
Report / provenance: contaminationReport (skin-screening); skin dose not calculated in-app; no dose coefficients embedded.

Screening worksheet only. Skin dose requires a validated coefficient model not shipped in this release.

Removable contamination / wipe testing

active

Scientific risk:: High
Support tier:: Screening
Data sources: Gross/background counts or cpm · Declared detector efficiency · Wiped area and optional geometry factor
Report / provenance: contaminationReport (wipe); cpm↔dpm chain and dpm/100 cm² in strict report JSON.

Fixed contamination / direct frisking

active

Scientific risk:: High
Support tier:: Screening
Data sources: Gross/background cpm · Probe and surveyed areas · Optional correction factor
Report / provenance: contaminationReport (direct-frisk); geometry and self-absorption warnings in payload only.

Survey statistics (gross−background counts)

active

Scientific risk:: Medium
Support tier:: Calculation support
Data sources: Gross and background counts · Live count time (seconds) · Optional method or confidence label
Report / provenance: contaminationReport (survey-statistics); approximate Poisson uncertainty √(gross+background); screening-only—not an MDA engine.

Screening statistics and documentation aid only.

Air sampling & DAC screening (documentation)

active

Scientific risk:: High
Support tier:: Screening
Data sources: User flow, count, and DAC inputs · Bundled nuclide context (optional) · Appendix B citations (user-declared)
Report / provenance: airSamplingReport extension; export gates for user-supplied DAC notes, grab-sample procedure notes, and non-unity filter correction factors.

Screening and training support only; not a replacement for approved air sampling or RPP programs.

Instrument correction factors

planned

Scientific risk:: Medium
Support tier:: Calculation support
Data sources: Calibration certificates (user) · Factory defaults (optional, clearly labeled)
Report / provenance: Each correction factor traceable in report raw inputs.

Internal dosimetry

Internal dose screening (generic)

active

Scientific risk:: High
Support tier:: Screening
Data sources: Intake type & route · Dose coefficients (source TBD) · Biokinetic model tier
Report / provenance: internalDoseReport extension requires coefficient/ALI/DAC confidence and source notes in exports.

Screening / training aid only until validated against authorized dose assessment programs.

Ingestion dose screening

prototype

Scientific risk:: High
Support tier:: Screening
Data sources: ALI / e ingestion coefficients · Intake amount & solubility class
Report / provenance: Mandatory provenance for coefficient set revision.

Screening / training aid only until validated.

Inhalation dose screening

prototype

Scientific risk:: High
Support tier:: Screening
Data sources: DAC / AMAD assumptions · Particle size defaults (labeled)
Report / provenance: Inhalation class and AMAD stated in every export.

Screening / training aid only until validated.

DAC-hour calculations

prototype

Scientific risk:: High
Support tier:: Screening
Data sources: Regulatory DAC table (user-selected revision) · Exposure interval
Report / provenance: DAC citation and CFR / licensee table version in report.

ALI / DAC reference support (lookup & citations)

prototype

Scientific risk:: Medium
Support tier:: Screening
Data sources: Tabulated limits (versioned bundle or user import) · Footnotes from source docs
Report / provenance: ALI/DAC source requirement and confidence labels included in screening report payload.

Bioassay evaluation support

planned

Scientific risk:: High
Support tier:: Screening
Data sources: Excretion functions · Intake retention classes · Measurement uncertainties
Report / provenance: Model version and intake pathway locked into report JSON.

Screening / training aid only until validated with qualified internal dosimetry review.

Spectroscopy

Gamma spectroscopy workflow shell

prototype

Scientific risk:: High
Support tier:: Calculation support
Data sources: Spectrum files (future) · Energy calibration · Efficiency curves
Report / provenance: spectroscopyReport extension captures tool type, assumptions, warnings, and calibration/source notes for screening workflows.

Energy calibration

prototype

Scientific risk:: Medium
Support tier:: Calculation support
Data sources: Known peak energies · Channel–energy fit model
Report / provenance: Linear fit residuals and calibration notes captured in spectroscopyReport.

Efficiency calibration

prototype

Scientific risk:: High
Support tier:: Calculation support
Data sources: Reference source certificates · Geometry documentation
Report / provenance: Efficiency screening equation inputs and source note preserved in spectroscopyReport.

Peak / ROI activity calculation

prototype

Scientific risk:: High
Support tier:: Screening
Data sources: Efficiency at energy · Peak area & background · Decay corrections
Report / provenance: ROI activity assumptions and warnings exported via spectroscopyReport.

FWHM / resolution calculation

prototype

Scientific risk:: Medium
Support tier:: Calculation support
Data sources: Calibration peaks · Measured peak widths
Report / provenance: Resolution calculation inputs and result exported for documentation.

MDA / LLD calculations

prototype

Scientific risk:: High
Support tier:: Screening
Data sources: Background counts · Counting time · Efficiency · Confidence level
Report / provenance: Simplified screening approximation method label and assumptions captured in report.

Training

Training Academy (modules & quizzes)

active

Scientific risk:: Low
Support tier:: Training only
Data sources: Bundled training prose · localStorage quiz progress only
Report / provenance: No formal certificate; progress is browser-local only.

Regulatory references

Regulatory reference cards

active

Scientific risk:: Low
Support tier:: Calculation support
Data sources: regulatoryReferences.json (pointers & metadata only)
Report / provenance: No reproduced regulatory text; confidence labels on cards.

Calculation reports (JSON / Markdown / copy)

active

Scientific risk:: Low
Support tier:: Calculation support
Data sources: Calculator outputs · User-selected units
Report / provenance: Strict Zod schema; JSON envelope; provenance references where calculators emit them.

Waste management

Decay-in-storage estimator (waste planning)

active

Scientific risk:: Medium
Support tier:: Screening
Data sources: Bundled nuclide half-lives · User activity & elapsed storage interval
Report / provenance: wasteReport (decay-storage); single-nuclide exponential decay; no disposal limit comparison.

Ten half-life screening helper

active

Scientific risk:: Medium
Support tier:: Screening
Data sources: Bundled half-life · User-declared initial activity
Report / provenance: wasteReport (ten-half-lives); rule-of-thumb fraction 2^(−10); explicit non-authorization warnings.

Waste container inventory worksheet

prototype

Scientific risk:: High
Support tier:: Calculation support
Data sources: Per-line reference activity & elapsed time · Bundled decay data
Report / provenance: wasteReport (container-inventory); client-side sums by nuclide; not a licensed inventory system.

Survey-before-disposal documentation checklist

active

Scientific risk:: Low
Support tier:: Calculation support
Data sources: User checkbox attestation only
Report / provenance: wasteReport (disposal-checklist); documentation counts only; no pass/fail scoring.

Emergency response

Emergency response / plume screening (later)

planned

Scientific risk:: High
Support tier:: Training only
Data sources: Met data (external) · Release term estimates · Dispersion class (future)
Report / provenance: No plume modeling in current scope; future module would require separate validation path.

Emergency and plume-related tools will remain training or highly conservative screening aids unless explicitly validated; not for operational emergency decisions.