SPACEDOS02 - PIN diode dosimeter for manned spacecraft
SPACEDOS is a active cosmic radiation dosimeter for use onboard manned spacecraft. It is designed as a replacement to standard passive detectors.
The device is used onboard ISS. The following pictures show the processed data from the flight. Here is a radiation map, where the South Atlantic Anomaly is visible.
The following spectrum is a cumulative sum of all the measured particles during the flight.
Technical parameters
- Silicon PIN diode detector with 0.22 x 10 x 20 ~ 44 mm³ detection volume
- Measurement environment: atmosphere > 70 kPa
- Measurement endurance: 120 days (4 months of measurement)
- Number of energy channels: 240
- Integration time: Customizable in a wide range from milliseconds to minutes
- Deposited energy range: from 180 keV to 8.5 MeV
- Energy measurement resolution: < 50 keV/channel
- Thermal stability: 1 channel per 12 °C
- Power supply: battery 3.6 V LS 33600
- Power consumption: < 10 mW during measurement, < 120 mW during writing to SD card
- Data storage media: Standard size SDcard, Industry-grade SLC SD card
- Interface: RS232/UART 3.3V TTL
- Radiation durability: 50 mGy - currently limited by the durability of a storage media
- Dimensions(HxWxL): 60mm x 39mm x 113 mm
- Mass / (including battery): 58/148 g