[P-PS03] Small Solar System Bodies: Latest results and new perspectives on the Solar System evolution

[PPS03-P04] Progress report of development and ground calibration of DESTINY+ Dust Analyser 2022

*Takayuki Hirai¹, Masanori Kobayashi¹, Tomoko Arai¹, Hiroshi Kimura¹, Hikaru Yabuta², Sui Amano², Sachio Kobayashi³, Motoo Ito³, Akira Yamaguchi⁴, Sho Sasaki⁵, Hajime Yano⁶, Mario Trieloff⁷, Thomas Ludwig⁷, Winfried Schwarz⁷, Jens Hopp⁷, Jon Hillier⁸, Nozair Khawaja⁸, Frank Postberg⁸, Lisa Eckert⁸, Harald Krueger⁹, Ralf Srama¹⁰, Jonas Simolka¹⁰, Carsten Henselowsky¹¹ (1.Chiba Institute of Technology, Planetary Exploration Research Center, 2.Hiroshima University, 3.Japan Agency for Marine-Earth Science and Technology, 4.National Institute of Polar Research, 5.Osaka University, 6.Japan Aerospace Exploration Agency, 7.Heidelberg University, 8.Free University of Berlin, 9.Max Planck Institute for Solar System Research, 10.University of Stuttgard, 11.German Aerospace Center)

Keywords:Cosmic dust, 3200 Phaethon, Impact ionization mass spectrometry

This presentation reports the current status of development and ground calibration of DESTINY+ Dust Analyser (DDA) to be onboard DESTINY+ spacecraft for the flyby observation of an asteroid 3200 Phaethon. DDA is an impact ionization TOF-MS dust analyser to reveal the mineral and organic molecular species by measuring positive ions generated upon hypervelocity impact of dust particles. The engineering model (EM) of DDA is in fabrication and some functional tests (pointing mechanism bearing test) have been successfully finished. For the ground calibration, the mineral and organic molecular sample materials are in preparation, e.g. the homogenity check of mineral samples to generate micro-sized particles for the dust accelerator. The functioning of the electrostatic dust accelerator at Stuttgart University has been confirmed at the trial run state with less than the nominal acceleration voltage.