Cybersecurity Modernization Initiative

We are taking steps to continue to modernize and secure our data, applications, and systems. We completed the first phase and restored many of the functions put on pause in May 2021. Now that the first phase is complete, work will resume at a slower pace but will speed up as new systems and applications are brought online. For more information and updates, please visit our Cybersecurity Modernization Initiative web page.

Technical Review Summaries from the Technical Support Contractor

On This Page

Dose Reconstruction Implementation Guidelines
General Procedures
Technical Information Bulletins

The Advisory Board conducts technical reviews of various DCAS guidance documents that relate to dose reconstruction. The Board’s technical support contractor assists in the review process. The purpose of the reviews is to assess the scientific and technical quality of the methods used in dose reconstruction. They also help identify any deficiencies that could have a negative effect on the results or the dose reconstruction process. These reviews can be found on the Advisory Board: Reports from the Technical Support Contractor page of our website. When the reviews are complete and all issues have been resolved, the Board prepares a brief summary of the resolutions. These summaries help the public understand the results of the technical reviews.

Note: DCAS was formerly known as the Office of Compensation Analysis and Support (OCAS). The difference in name only indicates a different time period, not a different organization. Both names may appear in the documents on this page.

Dose Reconstruction Implementation Guidelines (IGs) Technical Review Summaries

Dose reconstruction IGs provide basic guidance and methods to help Health Physicists estimate a worker’s exposure to radiation. For example, an IG document may explain how classified information is used or what sources of radiation exposures are included in dose reconstructions. Below are brief summaries of the Board’s technical reviews on these guidelines. Links to the original DCAS guidance document and Board’s technical review appear under the summary, when available.

SC&A Technical Review Summary: Overview of OCAS-IG-002, Rev. 0: Internal Dose Reconstruction Implementation Guideline [166 KB (2 pages)] September 29, 2010

SC&A Report: The Review of NIOSH/ORAUT Procedures and Methods Used for Dose Reconstruction, SCA-TR-Task3, Rev. 0 [2 MB (260 pages)]
January 17, 2005

NIOSH Report: OCAS-IG-002, Rev. 0 – Internal Dose Guidelines [291 KB (50 pages)] August 2002

General Procedure Technical Review Summaries

General procedure documents explain certain processes in the dose reconstruction program. For example, a procedure document may explain how to: conduct a phone call with a claimant, develop technical documents, track claim status, or review dose reconstructions. Below are brief summaries from the Board’s technical reviews on general procedures. Links to the original DCAS guidance document and Board’s technical review appear under the summary, when available.

SC&A Technical Review Summary: Overview of ORAUT-PROC-0002, Rev. 01: Use of Integrated Modules for Bioassay Analysis (IMBA) [131 KB (1 page)] January 20, 2011
SC&A Technical Review Summary: Overview of OCAS-PR-003, Rev. 0 – Performing and Reporting Dose Reconstructions [149 KB (2 pages)] January 20, 2011

NIOSH/ORAU: OCAS-PR-003, Rev. 0 – Performing and Reporting Dose Reconstructions [86 KB (21 pages)] September 24, 2002

Note: This document has been canceled.
SC&A Technical Review Summary: Overview of ORAUT-PROC-0004, Rev. 0: Scheduling Telephone Interviews [203 KB (1 page)] January 20, 2011
SC&A Review Summary: Overview of ORAUT-PROC-0005, Rev. 0: Performing Telephone Interviews [197 KB (1 page)] January 20, 2011
SC&A Technical Review Summary: Overview of ORAUT-PROC-0080 – Conduct of Quality Assurance Audits [137 KB (1 page)] September 13, 2010

Technical Information Bulletins (TIBs) Technical Review Summaries

Technical Information Bulletins (TIBs) contain information on specific technical issues or procedures to estimate radiation exposure. They add to or supplement other technical documents used in dose reconstruction. Below are brief summaries from the Board’s technical reviews on TIBs. The original TIBs that were reviewed and the Board’s original technical review report are listed below, when available. Please note that the most current versions of the original TIBs are on the Technical Information Bulletins (TIBs) — Numerical Listing page of our website.

SC&A Technical Review Summary: Overview of OCAS-TIB-0002, Rev. 0: Tritium Calculations with IMBA [148 KB (2 pages)] January 20, 2011

NIOSH/ORAU Report:OCAS-TIB-0002, Rev. 0 –Tritium Calculations with IMBA [670 KB (4 pages)] April 22, 2003
SC&A Technical Review Summary: Overview of ORAU-TIB-0003, Rev. 0: Savannah River Site Tritium Dose Assignment [138 KB (2 pages)] January 20, 2011

SC&A Report: Review of NIOSH/ORAUT Procedures and Methods Used for Dose Reconstruction (Supplement 1), Revision 1 [5 MB (199 pages)] August 3, 2007

NIOSH/ORAU Report: ORAU-TIB-0003, Rev. 0: Savannah River Site Tritium Dose Assignment [79 KB (6 pages)] October 3, 2003

Note: This document was canceled. The information contained in this document can now be found in ORAUT-OTIB-0011 Rev-00: Tritium Calculated and Missed Dose Estimates
SC&A Technical Review Summary: Overview of ORAU-OTIB-0004, Rev. 2: Estimating the Maximum Plausible Dose to Workers at Atomic Weapons Employer Facilities [161 KB (2 pages)] January 20, 2011

NIOSH/ORAU Report: ORAU-OTIB-0004, Rev. 2: Estimating the Maximum Plausible Dose to Workers at Atomic Weapons Employer Facilities [166 KB (13 pages)] December 5, 2003

Note: This document is no longer needed for dose reconstructions. Information in this document has been superseded by other approved methodologies.
SC&A Technical Review Summary: Overview of OCAS-TIB-0006, Rev. 1: Interpretation of External Dosimetry Records at the Savannah River Site (SRS) [135 KB (1 page)] January 20, 2011

NIOSH Report: OCAS-TIB-0006, Rev. 1: Interpretation of External Dosimetry Records at the Savannah River Site (SRS) [16 KB (3 pages)] February 20, 2004
SC&A Technical Review Summary: Overview of OCAS-TIB-0007, Rev. 0: Neutron Exposures at the Savannah River Site [130 KB (1 page)] January 20, 2011

NIOSH Report: OCAS-TIB-0007, Rev. 0: Neutron Exposures at the Savannah River Site [536 KB (6 pages)] September 17, 2003
SC&A Technical Review Summary: Overview of Use of OCAS-TIB-0008, Rev. 0: ICRP 66 to Calculate Respiratory Tract Doses [151 KB (2 pages)] September 13, 2010

NIOSH/ORAU Report: OCAS-TIB-0008, Rev. 0 – ICRP 66 to Calculate Respiratory Tract Doses [83 KB (5 pages)] September 29, 2003
SC&A Technical Review Summary: Overview of ORAU-OTIB-0008, Rev. 0: Standard Complex-Wide Conversion Factor for Overestimating External Doses Measured with Thermoluminescent Dosimeter [139 KB (2 pages)] January 20, 2011

NIOSH/ORAU Report: ORAU-OTIB-0008, Rev. 0: Standard Complex-Wide Conversion Factor for Overestimating External Doses Measured with Thermoluminescent Dosimeter [180 KB (20 pages)] November 7, 2003
SC&A Technical Review Summary: Overview of ORAUT-OTIB-0015, Rev. 0: Bayesian Methods for Estimation of Unmonitored Y-12 External Penetrating Doses with a Time-Dependent Lognormal Model [138 KB (1 page)] January 20, 2011

SC&A Report: Review of NIOSH/ORAU Procedures and Methods Used for Dose Reconstruction – Review of the Third Set of Procedures (contains review of ORAUT-OTIB-0015, Rev. 0) [2 MB (290 pages)] October 29, 2007

NIOSH/ORAU Report: ORAUT-OTIB-0015, Rev. 0 – Bayesian Methods for Estimation of Unmonitored Y-12 External Penetrating Doses with a Time-Dependent Lognormal Model [206 KB (11 pages)] September 9, 2004

Note: ORAUT-OTIB-0015 was canceled because Bayesian methods are no longer used for dose reconstructions.
SC&A Technical Review Summary: Overview of ORAUT-OTIB-0022, Rev. 0: Guidance on Wound Modeling for Internal Dose Reconstruction [125 KB (1 page)] January 20, 2011

NIOSH/ORAU Report: ORAUT-OTIB-0022 Rev 0 – Guidance on Wound Modeling for Internal Dose Reconstruction [110 KB (9 pages)] November 18, 2005
SC&A Technical Review Summary: Overview of ORAUT-OTIB-0028, Rev. 1: Validation of Thorium Annual Dose Conversion Factors [165 KB (2 pages)] January 20, 2011

NIOSH/ORAU Report: ORAUT-OTIB-0028, Rev. 1 – Validation of Thorium Annual Dose Conversion Factors [487 KB (22 pages)] July 28, 2008
SC&A Technical Review Summary: Overview of ORAUT-OTIB-0030, Rev. 0: External Coworker Dosimetry Data for the Hanford Site [156 KB (1 page)] January 20, 2011

SC&A Report: Review of NIOSH/ORAU Procedures and Methods Used for Dose Reconstruction – Review of the Third Set of Procedures (contains review of ORAUT-OTIB-0030) [2 MB (290 pages)] October 29, 2007

NIOSH/ORAU Report: ORAUT-OTIB-0030, Rev. 0 – External Coworker Dosimetry Data for the Hanford Site [39 KB (8 pages)] March 23, 2005

Note: ORAUT-OTIB-0030 was canceled. The information about the methods contained in this document has been incorporated into ORAUT-TKBS-0019-6 Rev 04, Paducah Gaseous Diffusion Plant – Occupational External Dose.
SC&A Technical Review Summary: Overview of ORAUT-OTIB-0066, Rev. 0 – Calculation of Dose from Intakes of Special Tritium Compounds [155 KB (2 pages)] September 13, 2010

SC&A Report: Review of ORAUT-OTIB-0066, Rev. 0 – Calculation of Dose from Intakes of Special Tritium Compounds [448 KB (26 pages)] November 25, 2008

NIOSH/ORAU Report: ORAUT-OTIB-0066, Rev 0 – Calculation of Dose from Intakes of Special Tritium Compounds [170 KB (14 pages)] November 26, 2007