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Silicon diode dosimeter and spectrometer.

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USTSIPIN02 - Semiconductor ionizing radiation detector and spectrometer electronics

It is intended for measurements of cosmic radiation and ionizing radiation dosimetry by using c-Si PIN diode sensor.

Top view on USTSIPIN02

Technical parameters

  • Silicon PIN diode detector with 44 mm³ detection volume
  • The number of energy channels depends on the firmware
  • Deposited energy range from 200 keV to 12 MeV, the measurement range could be adjusted by altering values in the analog front end
  • Energy measurement resolution is better than 50 keV/channel but the exact value depends on firmware and analog front-end setup.
  • Power supply 3.3 V / 3 mA
  • Integration time depends on specific firmware setup
  • Interface - RS232 TTL on JST-GH connector or USB-C device
  • Dimensions - 91mm x 51mm x 12mm
  • Weight

Use cases

USB interface

The main user interface is with a USB-C connector. See the LABDOS01 for a detailed description.

UART interface

It could also be used for firmware upgrades by switching solder jumper on the PCB.

Signal Pixhawk Color ThunderFly color
+5V Red red Red
RX Black white White
TX Black green Green
CTS Black blue Blue
RTS Black yellow Yellow
GND Black black Black

Auxilary IO

Mainly useful for special tasks like control of external devices depending on radiation intensity or spectral threshold energy. Another usage is the connection to an autopilot in a UAV. See the AIRDOS03 for details.

Signal Pixhawk Color ThunderFly color
TIMEPULSE Black blue Blue
EXTINT Black yellow Yellow
GEO_STAT Black white White
SDA Black green Green
SCL Black yellow Yellow
TX Black white White
RX Black green Green
GND Black black Black

Bootloader Programming Interface

The connector is used for service actions only. It is not accessible by users in normal circumstances.

Pin name Function Description
PB5 MOSI
PB6 MISO
PB7 CLK
#RST RST#
GND GND