Standards for protection against radiation

Reference type: regulation

Organization:

U.S. NRC

Publication / report:

10 CFR 20

URL:

https://www.nrc.gov/reading-rm/doc-collections/cfr/part020/

Date accessed (metadata):

2026-04-30

Used by:

regulations, contamination

Placeholder summary card; consult eCFR for authoritative text.

Export line: 10 CFR Part 20 (U.S. NRC) [10 CFR 20] https://www.nrc.gov/reading-rm/doc-collections/cfr/part020/ [Placeholder]

Medical use of byproduct material

Reference type: regulation

Organization:

U.S. NRC

Publication / report:

10 CFR 35

URL:

https://www.nrc.gov/reading-rm/doc-collections/cfr/part035/

Date accessed (metadata):

2026-04-30

Used by:

regulations

Placeholder summary card; consult eCFR for authoritative text.

Export line: 10 CFR Part 35 (U.S. NRC) [10 CFR 35] https://www.nrc.gov/reading-rm/doc-collections/cfr/part035/ [Placeholder]

Shielding design methods

Reference type: standard

Organization:

NCRP

URL:

https://ncrponline.org/

Date accessed (metadata):

2026-04-30

Used by:

regulations, shielding

Placeholder pointer to NCRP catalog; select report by facility type.

Export line: NCRP shielding guidance (NCRP) https://ncrponline.org/ [Placeholder]

Radiation protection system

Reference type: standard

Organization:

ICRP

URL:

https://www.icrp.org/

Date accessed (metadata):

2026-04-30

Used by:

regulations, decay

Placeholder; ICRP publications are copyrighted—link to official site.

Export line: ICRP recommendations (ICRP) https://www.icrp.org/ [Placeholder]

Emergency planning

Reference type: regulation

Organization:

EPA

URL:

https://www.epa.gov/radiation

Date accessed (metadata):

2026-04-30

Used by:

regulations

Placeholder; verify current PAG manual revision for operational use.

Export line: EPA protective action guides (EPA) https://www.epa.gov/radiation [Placeholder]

Occupational requirements

Reference type: regulation

Organization:

OSHA

URL:

https://www.osha.gov/ionizing-radiation

Date accessed (metadata):

2026-04-30

Used by:

regulations

Placeholder summary; cross-check with state OSHA plans.

Export line: OSHA ionizing radiation (OSHA) https://www.osha.gov/ionizing-radiation [Placeholder]

Material attenuation coefficients

Reference type: dataset

Organization:

NIST

URL:

https://www.nist.gov/pml/xcom-photon-cross-sections-database

Date accessed (metadata):

2026-04-30

Used by:

regulations, shielding

Authoritative photon interaction data by energy; HPCalc uses illustrative single μ rows in JSON.

Export line: NIST attenuation data (XCOM / related) (NIST) https://www.nist.gov/pml/xcom-photon-cross-sections-database [Reference-derived]

Photon interaction cross sections and attenuation coefficients by element, compound, and energy

Reference type: dataset

Organization:

NIST

Publication / report:

NIST Standard Reference Database 8 (XCOM)

URL:

https://www.nist.gov/pml/xcom-photon-cross-sections-database

Date accessed (metadata):

2026-04-30

Used by:

regulations, shielding

Primary NIST entry point for photon cross sections; bundled HPCalc μ rows are illustrative unless you replace them with values you verify from XCOM for your exact material definition and spectrum.

Export line: NIST XCOM: Photon Cross Sections Database (NIST) [NIST Standard Reference Database 8 (XCOM)] https://www.nist.gov/pml/xcom-photon-cross-sections-database [Reference-derived]

Mass attenuation coefficients for elements and selected compounds as a function of energy

Reference type: dataset

Organization:

NIST

URL:

https://www.nist.gov/pml/x-ray-mass-attenuation-coefficients

Date accessed (metadata):

2026-04-30

Used by:

regulations, shielding

Use alongside XCOM for independent checks (μ/ρ then density); HPCalc does not auto-import these tables.

Export line: NIST: X-ray Mass Attenuation Coefficients (NIST) https://www.nist.gov/pml/x-ray-mass-attenuation-coefficients [Reference-derived]

Definitions and references for SI base units and derived quantities used in scientific work

Reference type: other

Organization:

NIST

URL:

https://www.nist.gov/si

Date accessed (metadata):

2026-04-30

Used by:

unit-converter, training, contamination

Pointer for trainees reviewing SI quantities; consult NIST and BIPM materials for authoritative definitions.

Export line: NIST: International System of Units (SI) (NIST) https://www.nist.gov/si [Reference-derived]

Orientation for in-app training modules

Reference type: internal

Organization:

HPCalc

Date accessed (metadata):

2026-04-30

Used by:

training

Modules summarize concepts for self-study. They are not a substitute for licensed training programs, facility procedures, or authoritative regulatory text.

Export line: HPCalc Training Academy (application note) (HPCalc) [Placeholder]

Wipe, frisk, and skin screening calculators — stated limitations

Reference type: internal

Organization:

HPCalc

Date accessed (metadata):

2026-04-30

Used by:

contamination

Uniform efficiency, simple cpm-to-dpm conversion, and area normalization only; no regulatory limit values or skin dose coefficients are embedded.

Export line: HPCalc contamination screening assumptions (HPCalc) [Placeholder]

Radiation instrumentation and measurement standards

Reference type: standard

Organization:

ANSI / N42

URL:

https://webstore.ansi.org/

Date accessed (metadata):

2026-05-01

Used by:

spectroscopy, regulations

Reference pointer only; consult applicable current standards and lab QA methods for operational spectroscopy programs.

Export line: ANSI N42 standards family (pointer) (ANSI / N42) https://webstore.ansi.org/ [Placeholder]

Training/support scope for spectroscopy calculators

Reference type: internal

Organization:

HPCalc

Date accessed (metadata):

2026-05-01

Used by:

spectroscopy

Simple calibration and detection-limit approximations for documentation/training support only; not a substitute for calibrated lab software.

Export line: HPCalc spectroscopy screening assumptions (HPCalc) [Placeholder]

Annual limits on intake and derived air concentrations

Reference type: regulation

Organization:

U.S. NRC

URL:

https://www.ecfr.gov/current/title-10/chapter-I/part-20/appendix-Appendix%20B%20to%20Part%2020

Date accessed (metadata):

2026-05-01

Used by:

regulations, internal-dose

Use current eCFR table revision and applicable footnotes for operational interpretation.

Export line: 10 CFR Part 20 Appendix B (ALI/DAC) (U.S. NRC) https://www.ecfr.gov/current/title-10/chapter-I/part-20/appendix-Appendix%20B%20to%20Part%2020 [Reference-derived]

Committed effective dose coefficients and model assumptions

Reference type: standard

Organization:

ICRP

URL:

https://www.icrp.org/

Date accessed (metadata):

2026-05-01

Used by:

regulations, internal-dose

Dose coefficient selection depends on route, class/type, particle size, age group, and model assumptions.

Export line: ICRP dose coefficient framework (ICRP) https://www.icrp.org/ [Reference-derived]

Occupational dose framework and compliance context

Reference type: regulation

Organization:

U.S. NRC

URL:

https://www.nrc.gov/reading-rm/doc-collections/cfr/part020/

Date accessed (metadata):

2026-05-01

Used by:

regulations, internal-dose

Short pointer for context only; this app does not assign regulatory dose compliance.

Export line: 10 CFR Part 20 (occupational limits overview) (U.S. NRC) https://www.nrc.gov/reading-rm/doc-collections/cfr/part020/ [Reference-derived]

Documentation/training-only screening scope and limits

Reference type: internal

Organization:

HPCalc

Date accessed (metadata):

2026-05-01

Used by:

internal-dose

No certified internal dosimetry, bioassay interpretation, organ dose modeling, or medical decision logic in this module.

Export line: HPCalc internal dose screening assumptions (HPCalc) [Placeholder]

Emergency response support

Reference type: other

Organization:

U.S. NRC

URL:

https://www.nrc.gov/reading-rm/doc-collections/nuregs/

Date accessed (metadata):

2026-04-30

Used by:

regulations

Placeholder; use official NRC emergency tools and procedures for response.

Export line: NRC emergency response tools (U.S. NRC) https://www.nrc.gov/reading-rm/doc-collections/nuregs/ [Placeholder]