Development of a Digital Signal Processing System for the X-Ray Microcalorimeter Onboard ASTRO-H (II)

The Pulse Shape Processor is a digital signal processing electronics for the microcalorimeter instrument onboard ASTRO-H. Receiving digitized waveform (14 bit, 12.5 kHz sample) from 2×18 channels, two identical units of PSP-A and -B trigger X-ray events, assign five kinds of event grade, and perform...

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Bibliographic Details
Published in:Journal of low temperature physics 2012-06, Vol.167 (5-6), p.575-581
Main Authors: Shimoda, Y., Seta, H., Tashiro, M. S., Terada, Y., Ishisaki, Y., Tsujimoto, M., Mitsuda, K., Yasuda, T., Takeda, S., Hiyama, Y., Masukawa, K., Matsuda, K., Boyce, K. R.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Condensed Matter Physics
Magnetic Materials
Magnetism
Physics
Physics and Astronomy
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Summary:The Pulse Shape Processor is a digital signal processing electronics for the microcalorimeter instrument onboard ASTRO-H. Receiving digitized waveform (14 bit, 12.5 kHz sample) from 2×18 channels, two identical units of PSP-A and -B trigger X-ray events, assign five kinds of event grade, and perform optimal filtering to measure energy deposit on the 6×6 microcalorimeter pixels. One unit of PSP is composed of one FPGA board and two CPU boards. This paper describes the event processing algorithm to fulfill requirements for the signal processing, and task sharing between FPGA and CPU.
ISSN:0022-2291
1573-7357
DOI:10.1007/s10909-012-0483-0