[P-PS03] Small Solar System Bodies: New perspectives on the origin and evolution of the Solar System

[PPS03-P11] Progress report of development and ground calibration of DESTINY+ Dust Analyser 2024

*Takayuki Hirai¹, Masanori Kobayashi¹, Tomoko Arai¹, Hiroshi Kimura¹, Hikaru Yabuta², Motoo Ito³, Akira Yamaguchi⁴, Sho Sasaki⁵, Hajime Yano⁶, Mario Trieloff⁷, Thomas Ludwig⁷, Winfried Schwarz⁷, Jens Hopp⁷, Jon Hillier⁸, Nozair Khawaja⁸, Frank Postberg⁸, 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 Stuttgart, 11.German Aerospace Center (DLR))

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

DESTINY⁺ Dust Analyser (DDA) is an impact ionization TOF-MS dust analyser to be onboard the JAXA's DESTINY⁺ spacecraft for Phaethon flyby exploration. DDA will reveal the bulk chemical composition of interplanetary and interstellar dust particles and Phaethon ejecta particles. DDA can obtain TOF mass spectra of positive ions generated by impact ionization of dust particles. This presentation gives the status report of the development and ground calibration of DDA in 2023 to early 2024. The structural and thermal model 1 of the DDA sensor (DDA-S STM1) has been delivered to Japan for participating in the system-level structural and thermal model tests. The flight model (FM) design of DDA will be fixed soon after the upcoming critical design review (CDR). In the calibration test with the dust accelerator at the University of Stuttgart, mineral (e.g. olivine) and organic (e.g. perylen) particles coated with conductive materials have been successfully accelerated and impacted on the engineering model (EM) of DDA. The impact ionization mass spectra have been archived for the future interpretation of spectra to be obtained in orbit.