کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9845667 | 1526517 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The ground calibration of X-ray CCD cameras (XIS) with front-illuminated chips onboard Astro-E2
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The ground calibration of X-ray CCD cameras (XIS) with front-illuminated chips onboard Astro-E2 The ground calibration of X-ray CCD cameras (XIS) with front-illuminated chips onboard Astro-E2](/preview/png/9845667.png)
چکیده انگلیسی
We report on the results of the ground calibration of Astro-E2/XIS with front-illuminated (FI) chips. The sensors have basically the same performance as that of Astro-E/XIS. However, there are some improved points: (1) A 55Fe radio isotope is equipped on the door and (2) the capability for charge injection (CI) has been added. We measured the gain, energy resolution, and quantum efficiency (QE) of the FI sensors as a function of energy by using characteristic X-rays for each sensor. An energy resolution of 130Â eV at 5.9Â keV in FWHM and a QE of 52% at 8.6Â keV are achieved. After XIS is launched, the charge transfer inefficiency (CTI) will increase due to radiation damage by cosmic rays. Then XIS is equipped with the CI capability to calibrate and compensate for the increase in CTI. We estimate the time variability in the amount of the injected charge.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 541, Issues 1â2, 1 April 2005, Pages 365-371
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 541, Issues 1â2, 1 April 2005, Pages 365-371
نویسندگان
H. Nakajima, H. Yamaguchi, H. Matsumoto, T.G. Tsuru, K. Koyama, S. Kissel, B. LaMarr, M. Bautz,