کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1829326 | 1027456 | 2008 | 9 صفحه PDF | دانلود رایگان |
In this paper we report the procedure developed and the results achieved for the equalization of threshold levels for the 6144 discriminator units of XAA1.2 ASICs chosen for the SuperAGILE X-ray imager onboard the AGILE satellite. For these kinds of imager, we will show that the threshold equalization is a critical issue. For each XAA1.2 we reduced the threshold dispersion by a factor of 3–4, and a factor of ∼2∼2 for daisy chains of ASICs. Despite the method being developed for XAA1.2, the discriminator units and threshold fine-adjustment circuits are common to other chips of XA and VA-TA family, so that the algorithm and results can be extended to these two families of ASICs. This work may be useful for the design of electronic boards where the threshold equalization is a crucial issue.
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 593, Issue 3, 11 August 2008, Pages 367–375