Activity vs. Decay Time
Flux-Weighted Macroscopic Cross Section vs. Energy
User Guide
1. Input Fields
-
Alloy Compositions — Enter one alloy per line, each must have 2–7 elements using standard symbols (e.g.,
Fe
,Al
) Quantities can be in atomic ratio (e.g.,Co3Fe
), atomic percent ( at.% e.g.,Fe25Al75
), or atomic fraction (e.g.,Cr0.5Ni0.5
)For example:
Fe25Al75
is interpreted as 25 atoms of iron and 75 atoms of aluminum, yielding atomic fractions:- Fe = 0.25
- Al = 0.75
- This is equivalent to
Fe0.25Al0.75
or the compound notationFeAl₃
.
🚫 Do not enter weight percentages. ASAP does not convert mass percentages to atomic fractions internally. If your data is in weight percent, use an external tool to convert to atomic fractions before input.
Recommendation: To avoid ambiguity, use formats like
Fe0.25Al0.75
for clarity. - Reactor Type — Choose between PWR, SFR and DEMO FW
- Years of Irradiation — Select from 2, 5, or 10 years
- Decay Time after irradiation — Input a real number (e.g., 1 for 1 year or 0.0027 for 1 day) representing decay/cooling time after irradiation in years
AlFe
Cr0.25Ni0.25Fe0.25Co0.25
Mn2Fe1
Zr — Only one element
Al-Fe — Illegal character
AlFeCuMgZnNiTiV — Too many elements
2. CAPTCHA Verification
This site uses CAPTCHA to protect against automated misuse. Make sure to check the “I’m not a robot” box before submitting.
3. CSV Output
You’ll receive a CSV with all valid predictions, one per valid alloy entry. See the How-To Guide for explanations of the CSV column headings.
4. Tips for Clean Submission
- Keep input under 1024 characters
- Use only letters and numbers (no symbols like dashes or tabs)
- Use standard element symbols and optional quantities
If your submission fails, check line count, formatting, and whether each alloy has 2–7 valid elements.