Development of wide-band CCD camera for precise imaging-spectroscopy of cosmic hard X-rays

2015 Fiscal Year Final Research Report

• Project/Area Number: 24684010
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Astronomy
• Research Institution: Osaka University
• Principal Investigator: Nakajima Hiroshi 大阪大学, 理学(系)研究科(研究院), 助教 (70570670)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: X線CCD / ASIC / 放射線耐性

Outline of Final Research Achievements

We developed a mixed-signal ASIC for low-noise high-speed signal processing of onboard X-ray CCD cameras as well as dedicated printed circuit boards. While its noise performance was almost the same as that of the last version of ASIC that have been used for CCD camera onboard X-ray astronomical satellite Hitomi, the linearity performance improved (INL=0.1%, corresponds 6eV deviation at 6keV). We also verified the statistical radiation tolerance of our ASIC in terms of total ionizing dose and single event latch-up in the low earth orbit.

Free Research Field

X線天文学、宇宙物理学、衛星搭載機器開発