Changes in Version 3.9 ====================== Compiled the program to 32 bit. Previous versions were compiled to 16 bit, for Windows 3.1. This version should run under 'Windows 7'. Changes in Version 3.6 ====================== Program stores settings to a INI file, and uses those settings for next run. Colour of the window can be changed under options. The Periodic Table has been extended to add the new internationally accepted names and symbols for the elements up to element 109: Changes in Version 3.5 ====================== Added a Decay Calculation section, and included a Decay Graph. Changes in 13 April 2000 compile: Fixed (hopefully) the Date Error on the Decay Calculation section, where it would not correctly handle the non-Australian date formats of M/D/Y, (unstead of the "normal" D/M/Y). [Now who would want to put the month first! :o) ] Changes in Version 3.1 ====================== Fixed a bug in the Decay Series window, that caused the wrong decay percentages to display from the wrong daughter radionuclide! The decay probabilities were reversed on the graphic presentation. Here's an example: The main window for Ac-227 states that the daughter Fr-223 decays 1% of the time, and Th-227 decays 99% of the time. Yet on the decay series graphic, it shows Ac-227 decaying 99% of the time to Fr-223 and 1% of the time to Th-227. An obvious reverse of the percentages. This should now be fixed. This new version allows for displaying KeV energies as well as the usual MeV energies. Use the main menu (O)ptions to select this, or right click the mouse button on the energy display window. Changes in Version 3.0 ====================== 1. UPDATED DATA FILES The previous versions of Windows Radiation Decay (Version 1 and 2), used the data files that were included with the DOS Radiation Decay program "RadDecay.exe" version 2.02. Windows Radiation Decay Version 3 now uses the data files that are included with DOS Radiation Decay program "DK.exe" version 3.05. The information included in the DOS program "DK.exe" states: __________________________________________________________________ This constitutes the history of (DOS) RadDecay Version 3 as of this release. 3.00: Initial release - 4/5/90. 3.04: New NUCLIDES.REC file with corrected Cu-67 halflife units of hours. Prior values were days. This correction was pointed out by a user and verified with D. Kocher. The reference above is incorrect. Old NUCLIDES.REC was dated 1/25/88. New one is 12/19/90. 3.05: New NUCLIDES.REC and PHOTONS.REC Corrected halflives of: Po - 214 from 6.37e-5 sec. to 1.637e-4 sec. Po - 215 from 0.000778 sec. to 0.001778 sec. Pu - 240 from 6537 yrs. to 6569 yrs. Sm - 147 from 6900000000 yrs. to 1.06e11 yrs. U - 236 from 3415000 yrs. to 2.3415e7 yrs. Added Photons to: Ag - 110m Energy: 0.7345 Probability: 0.0091 In - 114 Energy: 0.5671 Probability: 0.0001 Nb - 90 Energy: 1.7164 Probability: 0.0052 Te - 134 Energy: 0.0439 Probability: 0.0013 Old NUCLIDES.REC was dated 12/19/90. New one is 5/3/91. Old PHOTONS.REC was dated 4/13/87. New one is 5/3/91. __________________________________________________________________ These above changes have been checked against ICRP-38, "Radionuclide Transformations" and have been found to be correct. What changes (if any) were made to the data files between the DOS Version 2.02 and DOS Version 3.0 is unknown. (The updated data files, and checking, is thanks to Ken Sejkora) NOTE: A newer DOS version exists, called RADDECAY 4.02, "DK4.EXE" (According to http://www-rsicc.ornl.gov/codes/dlc/dlc1/dlc-134.html) I was informed that it was available for purchasing over the internet. I was NOT inclined to purchase it! 3. PARENT NUCLIDE On the main display, possible parents of the current nuclide are displayed. The percentage that the parent decays to the current nuclide is also displayed. (Mouse clicking on the parent nuclide, will display that nuclides data. Also, mouse clicking on a daughter nuclide, will display that nuclides data). 2. SORT ON PROBABILITIES OR ENERGY When the display of the Probabilities and Energy of emission products are opened, it is sorted on Probabilities or Energy, depending on the menu option settings on the start-up window. This option can be modified in the display listing, by right clicking the mouse on the list. (Sorting is still only from minimum to maximum, {the Delphi listbox only allowed ascending order sort} ) 3. SPECTRUM SEARCHING It is now possible to search for Alpha, Electron, Beta and Positrons emissions, for specific energy emissions. Previously only Photon Emission search was possible. (Since Beta and Positrons have a range of energies, [Average and Maximum], the searching of these emissions requires the energy type to be specified). A probability limit is now included in the spectrum search. This probability limit allows the spectrum yield to discriminate out low probability energy lines. 4. HELP INFORMATION ON DATA UPDATES Particular literature publications have experimentally determined variations to currently published Radionuclide data. The data (*.REC) files were NOT updated with this new information. Instead a note button was included, to list the variations to current published data. (Try the Nuclide Si-32 for an example). 5. SAVING THE RECORD FILES AS TEXT A menu selection is provided to save the data files (*.rec) to text files (*.txt). (Under File - Create Text Data Base Files). The record files are written to disk files. The resulting files can be imported into spreadsheets, data base, or word processors. This function was provided by the DOS Raddecay program Version 3.05 (DK.exe), and was thus incorporated in this windows version. 6. BUG FIXES Some minor bug fixes made. No recordings were made of what they were.