SpaceDos - Open Source PIN Diode Dosimeter for Space
Abstract
We introduce "SpaceDos" - an Open Source Dosimeter intended for space applications. Two standard versions of "SpaceDos" were developed: ver.01 for satellites with vacuum environment and ver.02 for human-crewed cosmic flights in a pressurized compartment. "SpaceDos" comprises a silicon PIN diode detector with different sizes (thickness from 0.3 to 0.5 mm, and area from 25 to 200 mm$ ^{2}$) depending on intended orbit/flux, analog frontend electronics with sensitive low power charge preamplifier, specially designed sample/hold circuit and acquisition unit with a microcomputer. Measured data are stored on an SD (Secure Digital) memory card in a portable version, or transferred to an Onboard Computer via a serial interface in an embedded version. "SpaceDos" can perform long duration measurements. Battery operated portable version can measure and record data for 6 months. The device provides deposited energy in silicon for every incident particle in the range from 0.1 to 9 MeV . "SpaceDos" instrument is tested in ongoing space projects and Heavy Ion Medical Accelerator in Chiba (HIMAC, QST, Japan). The device is highly customizable by firmware, which is freely available at GitHub intended for Open Science. The first data from SOCRAT-R 3U CubeSat and ISS missions will be presented and analyzed.
- Publication:
-
43rd COSPAR Scientific Assembly. Held 28 January - 4 February
- Pub Date:
- January 2021
- Bibcode:
- 2021cosp...43E1885A