Results of the CALET Ultra-Heavy Cosmic-Ray Analysis

The Calorimetric Electron Telescope (CALET), launched to the International Space Station in August 2015 and has been in continuous operation since, measures cosmic-ray (CR) electrons, nuclei, and gamma rays. CALET, with its 27 radiation length deep Total Absorption Calorimeter (TASC), measures particle energy, allowing for the determination of spectra and secondary to primary ratios of the more abundant CR nuclei through ₂₈Ni, while the main charge detector (CHD) can measure Ultra-Heavy (UH) CR nuclei through ₄₀Zr. By using the special high duty cycle (~90%) UH trigger with a screen that requires UH trigger events to pass through the TASC, we can leverage energy information into our charge determination. While this reduces the total number of analyzed events, the improved charge determination and long duration of the CALET mission provides sufficient peak resolution. Here we present the results of 7 years of observation of the abundances of elements from Z=10 to Z=40 relative to ₂₆Fe and compare our results to previous measurements from ACE-CRIS, SuperTIGER, and HEAO-3.