TG-43 Brachytherapy Workbench

Deterministic source review, report lineage, and citation-first assistance.

This baseline carries the TG-51 product shape into a TG-43-specific workbench: deterministic dose-rate review, local report-registry ingestion, and constrained assistant output tied to the seeded TG-43 lineage.

Preview data
Direct TG-43 authority1 seeded reports
Deterministic core3.5456 cGy/h at the active worksheet point
Formal relationLine-source geometry, radial dose, and anisotropy remain explicit.

Deterministic Engine

TG-43 worksheet

The first deterministic slice evaluates a single TG-43 point using source strength, dose-rate constant, active length, and user-specified radial dose and anisotropy factors.

Governing relationD˙(r,θ)=SKΛGL(r,θ)GL(r0,θ0)gL(r)F(r,θ)\dot{D}(r,\theta) = S_K \Lambda \frac{G_L(r,\theta)}{G_L(r_0,\theta_0)} g_L(r) F(r,\theta)
Preview worksheet ready
Dose rate3.5456 cGy/h
Geometry ratio1.0000
Difference vs. reference0.00%
FactorSymbolValue
Air-kerma strengthS_K3.2000
Dose-rate constantLambda1.1080
Geometry ratioG_L(r,theta)/G_L(r0,theta0)1.0000
Radial dose functiong_L(r)1.0000
Anisotropy functionF(r,theta)1.0000

Corpus Registry

Seeded TG-43 lineage

The backend reads the local `report-registry.json` file and resolves the canonical TG-43 source PDFs from the workspace before chunking them for citation-ready retrieval.

Registry seeded, ingestion not yet run in this session
DocumentTierRole
Update of AAPM Task Group No. 43 Report: A revised AAPM protocol for brachytherapy dose calculations
Medical Physics - 2004 - Rivard - Update of AAPM Task Group No 43 Report A revised AAPM protocol for brachytherapy dose.pdf
1Revised protocol authority
Report of Task Group 186 on model-based dose calculation methods in brachytherapy
Medical Physics - 2012 - Beaulieu - Report of the Task Group 186 on model‐based dose calculation methods in brachytherapy.pdf
3Forward-looking model-based context
Context only for the first TG-43 slice.

Assistant

Report-grounded TG-43 query

Ready

tg43-primary-only

Scope: TG-43 primary sources only.

Grounded summary:

[1] Update of AAPM Task Group No. 43 Report, Unlabeled section, pages 1-2: The revised TG-43 protocol defines a report-grounded formalism for brachytherapy dose calculations and related consensus parameters.

Use the cited report text as authority; do not treat this answer as a substitute for protocol review.

Update of AAPM Task Group No. 43 Report

tg43-2004-update | tier 1 | Unlabeled section | pages 1-2

The revised TG-43 report provides a protocol framework for brachytherapy dose calculations.

Boundary Conditions

TG-43 guardrails

Tier 1 authorityOriginal TG-43 report, update, supplements, and errata govern the first product slice.
Tier 3 contextTG-186 can inform model-based context, but it does not silently override TG-43 behavior.
Deterministic boundaryThe worksheet engine remains testable without an LLM and keeps each factor explicit.
Local provenanceEvery TG-43 assumption stays inside `tg-43-app`, including corpus, tests, and deployment notes.

Source Catalog

Recommended TG-43 source presets

SourceIsotopePreset
Varian VariSource VS2000
Common Ir-192 HDR afterloader visualization preset.
Ir-192HDR reference water tank

Workflow

Persist a TG-43 QA session

No TG-43 workflow session created yet

OpenTOPAS

Stage a TG-43 visualization bundle

No TG-43 visualization staged yet