pushinka-rad 0.1.0

Space radiation effects library for spacecraft components. Published models, real data, pip-installable.

pushinka-rad

Space radiation effects library for spacecraft components. Published models, real data, pip-installable.

pip install pushinka-rad

No SPENVIS account. No Windows-only GUI. No Fortran. Just pip install and get answers.

Quick Start

import pushinka_rad as prad

report = prad.assess(
    orbit="LEO",
    years=15,
    shielding_mm_al=2.54,  # 100 mil Al
    components=["photonic-soi", "cmos-28nm", "fpga-rad-hard"]
)
print(report)

Output:

==============================================================================
  PUSHINKA-RAD  Space Radiation Assessment
  Mission: LEO_ISS, 400 km, 51.6 deg, 15.0 years
  Shielding: 2.54 mm Al (100 mil)
==============================================================================

  ENVIRONMENT
  --------------------------------------------------
  Total Ionizing Dose:      7.10 krad(Si)
  Dose rate:                0.4732 krad/yr
  Proton fluence:           7.10e+10 p/cm2
  Displacement damage:      7.10e+07 MeV/g
  Expected SPE events:      6

  COMPONENT ASSESSMENT
  --------------------------------------------------
  Component               Degrad%   Fail%    SEUs   Status
  ------------------------------------------------------
  Photonic SOI              0.00%    0.0%     0.0     PASS
  CMOS 28nm                 0.71%   51.3%     1.9     FAIL
  Microchip RTG4            2.37%    0.0%     0.0     PASS
==============================================================================

CLI

# Assess a 15-year LEO mission
pushinka-rad assess --orbit LEO --years 15 --component photonic-soi --component cmos-28nm

# GEO communications satellite
pushinka-rad assess --orbit GEO --years 10 --component cmos-28nm --component solar-gaas

# Lunar Gateway
pushinka-rad assess --orbit LUNAR --years 5 --component fpga-rad-tolerant --component photonic-soi

# Export as JSON
pushinka-rad assess --orbit LEO --years 15 --format json -o report.json

# List available orbits and components
pushinka-rad list-orbits
pushinka-rad list-components

Supported Orbits

Preset	Altitude	Inclination	Description
LEO_ISS	400 km	51.6 deg	International Space Station
LEO_SSO	700 km	98.2 deg	Sun-synchronous (Earth observation)
LEO_STARLINK	550 km	53.0 deg	Starlink-like constellation
MEO_GPS	20,200 km	55.0 deg	GPS (radiation belt heart)
GEO	35,786 km	0.0 deg	Geostationary (comms/weather)
LUNAR	100 km	90.0 deg	Low lunar orbit (Artemis Gateway)
DEEP_SPACE	--	--	Interplanetary (GCR-dominated)

Supported Components

Component	SEU?	Key metric
cmos-7nm through cmos-130nm	Yes	TID threshold + SEU rate per bit
fpga-rad-tolerant (XQRKU060)	Yes (TMR mitigated)	Config memory SEU
fpga-rad-hard (RTG4)	No (flash-based)	TID tolerance: 300 krad
photonic-soi	No (no stored charge)	Refractive index shift
photonic-sin	No	Wider bandgap, more tolerant than SOI
photonic-lnoi	No	Limited data, conservative model
mems	No	Dielectric charging
solar-gaas	No	NIEL displacement damage
solar-si	No	NIEL displacement damage

Why This Exists

SPENVIS requires an ESA account and a web browser. CREME96 is legacy Fortran. OMERE is Windows-only. SRIM is Windows-only. There is no lightweight Python tool that combines trapped particle models, SEU calculation, and component degradation prediction in one package.

Every number in this library traces to a published paper or datasheet. No synthetic data.

Data Sources

Model	Source
Trapped protons	AP-8 MIN, Sawyer & Vette 1976, tabulated via SPENVIS
Trapped electrons	AE-8 MAX, Vette 1991
Dose-depth	SHIELDOSE-2, Seltzer 1994
GCR protons	AMS-02, Aguilar et al. PRL 114, 2015
Solar proton events	King 1974, Xapsos et al. IEEE TNS 2000
CMOS SEU cross-sections	Seifert et al. IEEE TNS 59(6), 2012
CMOS TID thresholds	Dodd & Massengill IEEE TNS 50(3), 2003
Photonic SOI rad tolerance	Tzintzarov et al. Science Advances 10, 2024
Photonic SiN rad tolerance	Grudinin et al. arXiv 1406.0297, 2014
FPGA specifications	Xilinx DS893, Microchip DS0148
Solar cell NIEL	Messenger et al. IEEE Trans. ED 48(9), 2001
MEMS radiation effects	Shea, J. MEMS 8(3), 2009

Dependencies

• numpy >= 1.24
• scipy >= 1.10

That's it. No heavy frameworks, no ITAR-restricted binaries, no network access required.

Install

pip install pushinka-rad

Or from source:

git clone https://github.com/venticedlatte/pushinka-rad.git
cd pushinka-rad
pip install -e .

License

Apache 2.0

Built by

Pushinka Photonics