Parts Engineering and Product Assurance service: Adittional Services
Radiation Analysis
ALTER has developed the capabilities to perform the necessary analysis and calculations required for the multiple reviews
- Calculation of radiation environment and radiation analysis using,
- OMERE (TRAD Software)
- CREME96
- SPENVIS
- FASTRAD ® (TRAD Software). Ray-tracing (Reverse and Forward Montecarlo)
- Others: FLUKA, SRIM, EXPACS
- Standard Outputs required by users:
- TID and TNID Dose Septh Curves, GCR and Solar Flare Heavy Ion Environments, Solar Flare Proton Environments, etc
- Radiation Design Margins, SEE rate calculation and shielding analysis
TID, TNID and SEE testing
With more than 35 years in radiation testing, ALTER has accumulated hundreds of test campaigns with thousands of accumulated radiation experience in:
- I.D. (Total Ionizing Dose), at EEE part level or PCB/unit level at RADLAC facilities in Seville
- E.E. (Single Event Effects), like SEU, SEL, SET, SEB, SEFI, SEGR, SEDR, mainly in RADEF, UCL, GANIL and PSI
- Proton and neutron testing for S.E.E. and D.D. (Displacement Damage)
- Laser Testing for characterization,
- Alternative testing (CHARM, HEARTS, proton at PCB level….)
Space Product Support
Consider ALTER as your partner for EEE parts, radiation, materials, procurement and Product Assurance for your traditional or New Space mission. Rely on our 35 years expertise to boost your design and achieve the flight heritage, becoming integrated part of your engineering department to:
- Parts selection and analysis
- Downgrade/Upgrade your designs. Move from class 1 to class 3/COTS and LEO to GEO profiles.
- COTS assessment, including necessary testing, parts approval process and cost trade-off
- Materials and radiation support, understanding key reviews and documentation for space missions
Cryogenic characterization and support
Cryogenic testing is essential to guarantee the reliability of electronic, electrical, and electromechanical components operating in extreme environments such as space.
Below the standard -55ºC for standard EEE parts in space, multiple equipments need to withstand temperatures in the range of few kelvins where materials experience significant changes in mechanical and electrical behaviour, making standard qualification insufficient. These test can be only achieved by using liquid Nitrogen (-196ºC) and/or Helium (8-10K).
ALTER has participated in multiple ESA missions applying dedicated test at cryogenic temperatures like Herschell Planck, ExoMars, EUCLID or ARIEL. These tests validate performance under thermal cycling and prolonged exposure to ultra-low temperatures, preventing failures due to brittleness, contraction, or altered conductivity. By replicating mission conditions, cryogenic validation ensures robust functionality for critical subsystems in space science missions.
Cryostat features:
Characteristics of two Helium Cryostats available at ALTER Technology:
- Temperature control on Big Cold Finger from 10K
- Load capacity: 20cm diameter, 10cm height.
- Temperature range: 10K to 320K
- Temperature rate: <2K/min
- Vacuum range (control and measure): 10E-4 to 10E-7 mbar
- Temperature sensors for control and monitoring
- Feedthrough for in-vacuum measurements:
- Electrical: D-Sub, SpaceWire, high power
- Optical: window and fiber optics
- RF: SMA up to 18GHz
- Rotary and linear motion
- Can operate inside ISO-8 Clean Area
Key contacts
