EXPERTISE

Environment

Derive radiation environment specifications

Component

Scrub parts list & assess radiation tolerance

Testing

Design test strategy, planning, & execution

Analysis

Determine on-orbit event rate & mitigation strategy

 

ENVIRONMENT DERIVATION

space radiation environment, protons, electrons, solar flare, galactic cosmic rays, van allen belt.

Simulate mission's radiation environment, including:

  • Total-ionizing dose profile

  • Displacement damage dose

  • Trapped proton & electron flux

  • Galactic cosmic ray heavy ion LET spectra

  • Worst-case solar particle spectra

  • and More 

total dose profile, dose-depth curve

Here is an example of the dose profile for a LEO mission. The total mission dose is given as a function of the spacecraft shielding thickness. Additionally, the plot shows the individual dose contributions from various particle sources. We see the dominant contribution from solar protons for this mission. 

We will also determine the adequate radiation requirements based on your mission needs, leveraging on our experience writing radiation requirement documents for NASA missions and commercial space launch vehicle programs.

COMPONENT EVALUATION

Microelectronics chip, Component radiation tolerance, EEE parts radation.

A key part of any radiation assurance program is the evaluation of components for radiation susceptibility (aka. parts scrub). We leverage on our experience with parts assessment of various mission types & EEE parts requirements, from NASA Class A missions to CubeSats to commercial space. We have experience with parts lists that meet NASA EEE-INST-002 requirements to COTS with no data or heritage.

We leverage our internally developed, comprehensive 

radiation database app to provide the most up-to-date information and sound judgement. We will also have discussions with your designers to understand application specific performance, provide mitigation techniques, and recommend potential alternative components that meet your mission's requirements. 

 

RADIATION TESTING

testing-setup_edited_edited.jpg

Radiation sources and tests we support:

  • SEE testing (heavy ion, proton, laser, etc.)

  • TID testing (Co-60 gamma rays)

    • MIL-STD-883 TM 1019 Condition A, B, C, D

    • Low dose rate testing for ELDRS

  • Displacement damage dose testing (proton, neutron)

Types of test solutions we offer:

  • Turnkey solutions - planning, design, execution, analysis

  • Customized support - you provide the setup, we'll perform the irradiation or function as onsite consultant

Types of application:

  • COTS circuits / evaluation boards

  • Space-grade product development

  • Custom chips, devices, modules, instrument boxes

  • Materials: photonic devices, lense, battery cells, fiber optic cables, shielding fabrics, etc.

  • Medical sterilization (small volume)

 

RADIATION ANALYSIS

Types of analysis that we offer:

  • SEE rate calculation, probability derivation

    • Tools we use: CREME96, OMERE

  • SET / SEU data analysis and characterization

  • TID delta-parameter characterization, KTL limits

 

Run your analysis efficiently with our in-house developed SEE data analysis tool. Our SEE analysis app uses figure-of-merit method to quickly provide event rate estimates for heavy ion and proton test data. For proton data, the tool calculates rates from a set of mission parameters including orbit inputs, solar condition, and shielding level.

Our SEE analysis app is free to use for the community.

 
 
How can we help?
Inquire about our consulting or radiation testing services