Name: Radiation Dosimeters and Rad Hard ICs
Brand: Teledyne HiRel Semiconductors

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Radiation Dosimeters and Rad Hard ICsRadiation Dosimeters and Rad-Hard ICs from Teledyne HiRel include the uDOS001 and uDOS007 micro dosimeters, which measure total ionizing dose up to 40 krad(Si) for in-flight spacecraft radiation monitoring. The compact 20 gram devices support Class H screening for space missions.

Teledyne HiRel Semiconductors offers Radiation Dosimeters and Rad-Hard ICs for space and defense markets. Key capabilities include: in-flight TID measurement, compact low-mass packaging, and Class H space screening.

Measurement range: up to 40 krad(Si)
Package: 1.4 x 1.0 x 0.2 inches, 20 g
Input power: 10 mA from 13 V to 40 V dc

Radiation dosimeters are used in satellites, deep-space probes, and crewed spacecraft within the high-reliability semiconductor industry.

Features

UDOS001-H and UDOS007-H Micro Dosimeters: compact hybrid microcircuits measuring TID
Patented integrator architecture producing flat energy response across electrons, protons, and gamma rays
Measurement range up to 40 krad(Si) with dose resolution of 15 µrad(Si)
Three cascaded DC linear outputs (Low, Medium, High range) plus one pseudo-logarithmic output; 0 to 5 V range
Mechanical dimensions 1.4 x 1.0 x 0.2 inches; 20 g; 10 mA from 13 V dc to 40 V dc input
Class H-equivalent MIL-PRF-38534 screening; latch-up immunity demonstrated to 67.8 LET MeV·cm²/mg

Benefits

Direct TID measurement enables routine monitoring of the spacecraft radiation environment throughout the mission
Flat energy response provides consistent dose accuracy across the full range of space radiation particle types and energies
Compact 20 g package with minimal power draw (10 mA) supports multi-location mounting without significant mass or power budget impact
Simple 0 to 5 V analog output connects directly to existing spacecraft housekeeping analog inputs without additional interface hardware
Total mission dose data supports diagnosis of spacecraft anomalies attributable to changes in radiation environmental fluxes
Correlates environmental models and ray-tracing analyses with real in-flight measurements for improved mission radiation understanding

Applications

Routine spacecraft radiation environment monitoring throughout satellite mission lifetime
In-flight TID measurement on GEO, MEO, and LEO satellites to characterise the actual radiation dose received
Correlation of pre-launch environmental models and ray-tracing analyses with real in-flight dose measurements
Diagnosis of spacecraft anomalies resulting from changes in radiation environmental fluxes
Multi-location dose mapping across a spacecraft to characterise shielding effectiveness
Scientific and technology demonstration missions requiring in-situ radiation dose measurement capability

Specifications

Part numbers: UDOS001-H (Class H), UDOS007-H (Class H Extended Temperature Range)
Measurement range: Up to 40 krad(Si)
Dose resolution: 15 µrad(Si) per step
Supply voltage / current: 13 V dc to 40 V dc; 10 mA typical supply current
Outputs: Three cascaded linear DAC outputs (Low/Medium/High range) plus pseudo-logarithmic output; 0 to 5 V range
Package / weight: Hermetic hybrid; 1.4 x 1.0 x 0.2 inches; 20 g; Class H-equivalent MIL-PRF-38534 screening