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RESRAD-BUILD 3.5 (10/30/09):

  • Choice between ICRP60 or FGR12 for external dose factors added
  • 64-bit and Vista computers now supported
  • Added graphics capability for risk results

RESRAD-BUILD 3.4 (12/20/07):

  • Added ICRP 72 age-dependent DCFs
  • Added sensitivity analysis
  • More advanced detailed report
  • Various textual changes to the interface
  • Source form changed to be similar to RESRAD
  • Shielding of a volume source now correctly sets the density of shielding
  • Help system enhanced

RESRAD-BUILD 3.3 (8/25/05):

  • Added risk calculations
  • Added ICRP-38 database
  • Added rectangular source
  • Reestablished Eu-154 external parameters
  • Alphabetically ordered radionuclide list
  • DCF Editor is now common between RESRAD and RESRAD-BUILD

RESRAD-BUILD 3.22 (2/6/04):

  • Added Tl-206 and Bi-210m
  • Corrected DCF and coefficient for Eu-154, Sm-151, and Pu-244

RESRAD-BUILD 3.21 (10/1/02):

  • Added Graphics Wizard that guides the user through the process of creating data plots
  • Added ability to add more than 10 radionuclides per source
  • Corrected SR-90 area and volume source calculations
  • Radon diffusion calculations with volume sources with more than 1 region have been corrected
  • SI units problem has been fixed
  • Upgraded to run under Windows XP
  • The external DCF values for U-238+D and Ce-144+D changed from 1.37E-01 to 1.52E-01 and 3.20E-01 to 3.24E-01, respectively
  • Refined line integral approximation and Bateman's equation for short-lived daughters at small times
  • Resolved error with Radon daughters in uncertainty analysis

RESRAD-BUILD 3.1 (7/27/01):

  • User choice of radiological units: Ci, Bq, dps, dpm for activity and mrem or Sv for dose
  • Much improved report Table of Contents
  • If calculation errors occur, they are identified and displayed
  • The removable fraction is accurately reported
  • Copy Shielding feature has been created
  • Improved 3D interface with a bounding box
  • Changed default file extension to .bld
  • Exposure buildup factor coefficients are consistenty used instead of energy absorption buildup factor coefficients
  • U-236 half-life changed to 2.34E7 years from 2.34E6 years
  • Pb-210 air submersion DCF changed to 1.05E-5 (mrem/yr per pCi/m3) from 1.43E-5
  • Effective diffusion coefficient of Rn for uncertainty analysis has been enabled
  • Corrected occasional bluewash over input fields
  • Improved Help

RESRAD-BUILD 3.00 (10/15/00):

  • There is no difference in the deterministic interface, calculations, or results
  • The probabilistic version was updated and released including the following features:
  • Default data distributions for important variables
  • Template files for non-radionuclide dependent variables
  • A help system to display the input distributions
  • Feedback on how long the calculation will take
  • A robust user input screen for setting distributions, input correlations, & sampling characteristics
  • An estimate of the variability of the end results given the sampling size and characteristics
  • A set of 4 output results including interactive tables and graphs, a full report, and a structured database with all the raw samplings and intermediate results
  • Input-output correlation analysis
  • Analysis with both the peak-of-the-means and means-of-the-peaks methods

RESRAD-BUILD 2.37 (August, 1998):

  • Added table for input/review of source/receptor shielding properties
  • Fixed occasional inconsistencies with Radon dose results

RESRAD-BUILD 2.36 (April, 1998):

  • Corrected problem with simultaneously changing number of wall regions and their parameters
  • Added OK button to uncertainty window
  • Made sure first uncertainty variable is added on first try

RESRAD-BUILD 2.35 (March, 1998):

  • DCF consistent with RESRAD
  • Defined porosity dependence for Rn path only
  • Various interface improvements

RESRAD-BUILD 2.30 (January, 1998):

  • Incorporated new Tritium model for volume sources
  • Cleaned up interface

RESRAD-BUILD 2.20 (July, 1997):

  • Incorporated new external model similar to RESRAD
  • Cleaned up interface units and defaults
  • Fixed Ra-228/Th-228 air decay (usually very minor)

RESRAD-BUILD 2.11 (March 1997):

  • Corrected incorporation of Am-241 as daughter of Pu-241.
  • Corrected ability of user to save and use User-Defined DCF (DOS)

RESRAD-BUILD 2.10:

  • Radon dose calculation correction.
  • Windows interface version released under test and evaluation mode

RESRAD-BUILD 1.50:

  • Original release.

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