Each guide is written for the engineer who has been handed the radiation problem alongside several others. They explain what the effect is, what the evidence has to show, where the numbers in the standards come from, and which of the free tools on this site does the arithmetic. Start with the first one if you are new.
COTS Parts in Space: A Radiation Risk Assessment Checklist
How to decide, part by part, whether a commercial component can fly, what evidence is enough, and what to do when there is none
Read the guide →Heavy Ion SEE Test Planning: LET, Fluence, Range, Bias and How Much Is Enough
What to decide before you book beam time, what the standards actually require, and the mistakes that make a campaign worthless
Read the guide →Radiation Hardness Assurance for Commercial Space: Where to Start
A practical starting point for a smallsat or constellation team that has to make radiation decisions without a radiation department
Read the guide →How to Calculate a Single Event Effect Rate from Heavy Ion Test Data
From counts and fluence to events per device per day and probability per mission, with a worked example you can reproduce
Read the guide →Single Event Effects Explained: SEU, MBU, SEFI, SET, SEL, SEB and SEGR
What each single event effect is, what causes it, which parts show it, whether it is destructive, and how it is measured and mitigated
Read the guide →Total Dose, Displacement Damage and Single Event Effects Compared
The three ways space radiation damages electronics, which particles cause each, which parts care, how each is measured and how each is specified
Read the guide →Reference pages
Analog Single Event Transient Guideline
Bounding transient amplitude and width by device family when you have no data on your part.
Open →Standards, Test Methods and the Reasoning Behind Their Numbers
Why 1e7 ions, why LET 37 and 75, why 100 mil of aluminium, why 50 to 300 rad per second, with facilities and data sources.
Open →Proton versus Heavy Ion Latchup Case Studies
Parts tested both ways, and what the proton result did and did not predict.
Open →