Department of Energy Fact Sheets
These Fact Sheets were developed by the National Labs for the Department of Energy. Although the Fact Sheets are element-specific rather than nuclide-specific, each sheet provides lots of nuclide-specific radiation data for that element. These files are in PDF format; download/view these files with Adobe Reader or similar software. You may download
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DOE
Fact Sheet site [they lost funding - let me know
if this link fails]