Comparison of analog and digital signal processing systems using pulsers

Koskelo, M. J.; Koskelo, I.J; Sielaff, B

doi:10.1016/s0168-9002(98)00986-3

Cited by 16 publications

(5 citation statements)

References 3 publications

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“…Single photopeak count rates up to 2 × 3000 s −1 are achievable without major decrease in energy resolution. The signal processing is performed by two digital signal processors from Canberra (DSP 2060) 27 which are connected to the multiparameter system MPA3 from FastComTec. 28…”

Section: Experiments a The Cdb-spectrometer At Nepomucmentioning

confidence: 99%

Investigation of the chemical vicinity of crystal defects in ion-irradiated Mg and a Mg-Al-Zn alloy with coincident Doppler broadening spectroscopy

et al. 2007

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Crystal defects in magnesium and magnesium based alloys like AZ31 are of major importance for the understanding of their macroscopic properties. We have investigated defects and their chemical surrounding in Mg and AZ31 on an atomic scale with Doppler broadening spectroscopy of the positron annihilation radiation. In these Doppler spectra the chemical information and the defect contribution have to be thoroughly separated. For this reason samples of annealed Mg were irradiated with Mg-ions in order to create exclusively defects. In addition Al-and Zn-ion irradiation on Mg-samples was performed in order to create samples with defects and impurity atoms. The ion irradiated area on the samples was investigated with laterally and depth resolved positron Doppler broadening spectroscopy (DBS) and compared with preceding SRIM-simulations of the vacancy distribution, which are in excellent agreement. The investigation of the chemical vicinity of crystal defects in AZ31 was performed with coincident Doppler broadening spectroscopy (CDBS) by comparing Mg-ion irradiated AZ31 with Mg-ion irradiated Mg. No formation of solute-vacancy complexes was found due to the ion irradiation, despite the high defect mobility.

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Section: Experiments a The Cdb-spectrometer At Nepomucmentioning

confidence: 99%

Investigation of the chemical vicinity of crystal defects in ion-irradiated Mg and a Mg-Al-Zn alloy with coincident Doppler broadening spectroscopy

et al. 2007

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“…Later, a test of digital coincidence counting was performed [2]. A comparison was obtained of analog and digital pulse processing systems using a pulser [3]. The principles for use of DSP with x-and γ-ray detectors were outlined [4].…”

Section: Introductionmentioning

confidence: 99%

High-resolution energy and fast timing measurements for nuclear spectroscopy using digital signal processing

Negi¹,

Wahid²,

Suman³

et al. 2020

J. Inst.

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Simultaneous high-resolution energy and picosecond timing measurements have been established with an 8-channel, 14-bit, 500 MS/s digitizer coupled to semiconductor and scintillation radiation detectors, resulting in performance equivalent to that obtained with analog electronics. By interpolating between the 2 nanosecond time stamps associated with the sampling frequency, timing up to few tens of picoseconds is achieved. Energy resolution and linearity are determined to be excellent. Coincidence and precise lifetime measurements performed indicate the utility in complex gamma-ray spectroscopic studies.

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“…Since that, a novel generation of spectrometry systems (coincidence or anticoincidence mode) is compact on size, convenient in terms of connectivity and use [6]. The outstanding advantage of DSP techniques and FPGA technology is capable of enhancement of the quality of the experimental measurements for nuclear radiation, minimization of functional electronics modules as well as the economic investment [7,8]. Besides, an important element of the system based on DSP and FPGA is low power consumption to save energy that has a special meaning in large equipments.…”

Section: Introductionmentioning

confidence: 99%

A Design Configuration of an FPGA-Based Coincident Spectrometry System

Khang¹,

Dien²,

Lanh³

et al. 2013

JASMI

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In the past, most of popular coincidence spectrometers were normally based on traditional electronics techniques such as time to amplitude conversion or logic selecting coincidence unit. They were complicated and it is not convenient for us to use them. This paper deals with a new design of a contemporary coincidence spectrometer which is based on Field Programmable Gate Arrays (FPGA) devices via Digital Signal Processing (DSP) techniques with Hardware Description Language (VHDL). The outstanding advantage of DSP techniques and FPGA technology is capable of enhancement of the quality of the experimental measurements for nuclear radiation. The designed configuration of the traditional system was tested on the PCI 7811R board of National Instruments while the digital systems were establishing with FPGA devices. The purpose of this work is referring to the principle for construction of an FPGA-based system capable of replacing a conventional system. Therefore, a novel approach for in-house development of digital techniques is presented. The method for designing the system is utilization of slow-fast coincidence configurations with two HPGe detectors obtaining a pair of coincidence events, processing data in DSP algorithms. The significant and noticeable results are the operating frequency of 80 MHz and system timestamp window of approximately 10 ns.

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Comparison of analog and digital signal processing systems using pulsers

Cited by 16 publications

References 3 publications

Investigation of the chemical vicinity of crystal defects in ion-irradiated Mg and a Mg-Al-Zn alloy with coincident Doppler broadening spectroscopy

Investigation of the chemical vicinity of crystal defects in ion-irradiated Mg and a Mg-Al-Zn alloy with coincident Doppler broadening spectroscopy

High-resolution energy and fast timing measurements for nuclear spectroscopy using digital signal processing

A Design Configuration of an FPGA-Based Coincident Spectrometry System

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