We are creating all-sky diffuse maps from the AKARI mid-infrared survey data with the two photometric bands centered at wavelengths of 9 and 18 m. The AKARI mid-infrared diffuse maps achieve higher spatial resolution and higher sensitivity than the IRAS maps. In particular, the 9 m data are unique resources as an all-sky tracer of the emission of polycyclic aromatic hydrocarbons (PAHs). However, the original data suffer many artifacts. Thus, we have been developing correction methods. Among them, we have recently improved correction methods for the non-linearity and the reset anomaly of the detector response. These corrections successfully reduce the artifact level down to 0.1 MJy sr􀀀1 on average, which is essential for discussion on faint extended emission (e.g., the Galactic PAH emission). We have also made progress in the subtraction of the scattered light caused in the camera optics. We plan to release the improved diffuse maps to the public within a year.

ABSTRACT
1. INTRODUCTION
2. DATA ANALYSIS
3. RESULTS
4. SUMMARY
REFERENCES

• Tomoya Amatsutsu(Graduate School of Science, Nagoya University)
• Daisuke Ishihara(Graduate School of Science, Nagoya University)
• Toru Kondo(Graduate School of Science, Nagoya University)
• Hidehiro Kaneda(Graduate School of Science, Nagoya University)
• Shinki Oyabu(Graduate School of Science, Nagoya University)
• Mitsuyoshi Yamagishi(Graduate School of Science, Nagoya University)
• Keichiro Nakamichi(Graduate School of Science, Nagoya University)
• Hidetoshi Sano(Graduate School of Science, Nagoya University)
• Takashi Onaka(Graduate School of Science, The University of Tokyo)