A pulse-processor based on rise time measurement of trapezoidal waveforms by using a count-up ADC

T. Ito, H. Maeda, M. Kuwata, S. Ohkawa, M. Iwasaki, Tomoki P. Terada, K. Husimi, Satoshi Nakamura

doi:10.1109/nssmic.1995.504166

Description

In order to raise the throughput of low-energy X-ray signals appearing in a background of high-energy pulses, a new pulse-processor that measures the rising time of a trapezoidal waveform instead of the peak height has been developed. A rectangular pre-filter and a gated integrator are used to make the wave-shape at the shaper output linear. A rectangular pulse is formed by adding a differentiated step signal and its integration. The rising time of the trapezoidal waveform is inversely proportional to the height of the input step pulse. Therefore, processing time for a high-energy pulse is shorter than that for low-energy ones. Consequently, the pile-up loss of the low-energy X-rays is reduced.

Journal

IEEE Transactions on Nuclear Science

IEEE Transactions on Nuclear Science 43 1626-1628, 1996-06-01

Institute of Electrical and Electronics Engineers (IEEE)

Details 詳細情報について

CRID: 1873116917649462912

DOI: 10.1109/23.507160; 10.1109/nssmic.1995.504166

ISSN: 15581578; 00189499

Data Source

OpenAIRE

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