Radiation Micro Dosimeter Datasheet0 pages

μDOS001

Micro Dosimeter

PART NUMBER

DESCRIPTION

UDOS001-C

Micro Dosimeter - Commercial

UDOS001-H

Micro Dosimeter - Class H Equivalent Screening

UDOS001-K

Micro Dosimeter - Class K Equivalent Screening

DESCRIPTION
The Micro Dosimeter (P/N UDOS001) is a compact hybrid microcircuit
which directly measures total ionizing dose (TID) absorbed by an
internal silicon test mass. The test mass simulates silicon die of
integrated circuits on-board a host spacecraft in critical mission
payloads and subsystems. By accurately measuring the energy
absorbed from electrons, protons, and gamma rays, an estimate of
the dose absorbed by other electronic devices on the same vehicle
can be made. The Micro Dosimeter can operate from a wide range
of power supply voltages. The accumulated dose is presented to
three cascaded DC linear outputs and one pseudo-logarithmic output
giving a dose resolution of 14 uRads and a measurement range up
to 40 krads. These outputs are intended to be directly connected to
most analog-to-digital converters (ADCs) or spacecraft housekeeping
analog inputs (0-5V range), which makes minimal demands on the host
vehicle.

BETTER THAN INDUSTRY STANDARDS
•t First compact microcircuit that provides a
repeatable measurement of radiation dose
over a wide range of energies
•t Uses a patented integrator architecture to
produce a flat energy response
•t High reliability hermetic packaging

FEATURES/BENEFITS
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Enables routine monitoring of spacecraft radiation environment
Custom microchip in a small footprint package which results in
significantly lower weight and power than alternative devices
Can be mounted in multiple locations on spacecraft
Correlates environmental models and ray-tracing analyses with
real in-flight measurements
Provides total mission dose to aid in diagnosis of spacecraft
anomalies that result from changes in environmental fluxes
Dosimeters can be integrated to standard spacecraft
housekeeping systems
Measures up to 40 krads
Mechanical dimensions: 1.4” x 1.0” x 0.040”
20 grams in weight
10 mA from 13 VDC to 40 VDC input
Simple linear analog output
Commercial, Class H and Class K equivalent screening available

CLASSIFICATION DESCRIPTION
•t Commercial - Electrical Test Only
•t Class H - MIL-PRF 38534 Class H
Equivalent Screening
•t Class K - MIL-PRF 38534 Class K
Equivalent Screening

LOCATION OF DETECTOR
Pin 1

NOTE
Teledyne requests that the Micro Dosimeter data be made available
to The Aerospace Corporation for the purpose of improving space
environment models used to predict radiation dose with the multitude of
Micro Dosimeter data obtained from orbits.

Location of
Detector

Information included herein is controlled by the Export Administration Regulations (EAR) and may require an export license, license exception or other approval from the appropriate U.S. Government agency before being exported from the United States or provided to any foreign person. Diversion contrary to U.S. law is prohibited. License exception “TSU”.
© 2014 TELEDYNE MICROELECTRONIC TECHNOLOGIESt
Approved for Public Release TMT-2014-02

310.574.2010 | www.teledynemicro.com

2DSUDOS001 Rev 11