Improved Rise Approximation Method for Pulse Arrival Timing

Jokhovets, L.; Erven, A.; Grewing, Christian; Herzkamp, M.; Kulessa, P.; Ohm, H.; Pysz, K.; Ritman, J.; Serdyuk, V.; Streun, M.; Waasen, S. van; Wintz, P.

doi:10.1109/tns.2019.2923382

Cited by 2 publications

(4 citation statements)

References 15 publications

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“…The timing error due to the electronic noise introduced by the 12-m long signal cable is ∼180 ps, as estimated using simulation results of ref. [7]. Thus, the total timing error amounts to ∼270 ps.…”

Section: Testsmentioning

confidence: 98%

“…The acquisition of raw data, arrival time extraction, energy calculation, and pile-up reconstruction for all 160 channels are implemented in a single FPGA occupying less than 30% of its processing resource. The algorithm employed to extract the pulse arrival time has been discussed in detail previously [7]. It uses two very first samples on the pulse leading edge and the non-linear rise approximation.…”

Section: Fpga Implementation Of Data Acquisition and Analysismentioning

confidence: 99%

“…The aim of this work is to increase the number of channels assembled on the standard 6U Eurocard while simultaneously maintaining a high time resolution. A central prerequisite of our strategy is the processing algorithm introduced in [7], which uses a non-linear rise approximation. It strongly reduces the sampling phase error (SPE), and provided that the signal-to-noise ratio is sufficiently large, yields a time resolution better than 1/100 th of the sampling period.…”

Section: Introductionmentioning

confidence: 99%

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Versatile free-running ADC-based data acquisition system for particle detectors

et al. 2022

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A high-density and low-power (<300 mW/channel) data acquisition (DAQ) system integrating 2240 readout channels inside a single OpenVPX crate is presented. It is intended to be used in various applications, e.g. gaseous or scintillator-based particle detectors. 14 payload slots, controller and data concentrator communicate via a multi-gigabit backplane. Each payload slot consists of a front module for digital and a rear transition module for analog processing. A pair of modules implements 160 full readout chains including amplification/shaping, sampling, and feature extraction. The sampling rate and ADC resolution are configurable for 100–1000 MS/s and 14–8 bit, respectively. To extract the pulse arrival time we used a proper shaping of signals and a timing algorithm based on a non-linear rise approximation, which strongly reduces the sampling phase error, thus providing a good performance at moderate (100–250 MS/s) sampling rates. This allows raw data acquisition, arrival time extraction, energy calculation, and pile-up reconstruction for all 160 channels to be implemented in a single FPGA. It occupies less than 30% of its processing resources. The system was tested using the proton beam at COSY (Cooler Synchrotron) at Juelich Research Center (Germany). An off-detector DAQ with a 12-m long cabling was investigated. It introduces considerable additional thermal noise and crosstalk affecting the timing performance. For a sampling rate of 150 MS/s, the time resolution was found to be about 270 ps.

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Section: Testsmentioning

confidence: 98%

Section: Fpga Implementation Of Data Acquisition and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Versatile free-running ADC-based data acquisition system for particle detectors

et al. 2022

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“…The digital processor plays an active role in feature extraction of a pulse and therefore a higher complexity as in usual implementations. It records an event with on-chip memory and then implemented algorithms are applied to extract the energy and the time of arrival, a possible candidate being the algorithm presented in [1], as well as pile-up events. If only some information is needed, the remaining digital signal processing can be switched off to reduce power consumption.…”

Section: Generic Receiver Chainmentioning

confidence: 99%

Towards a generic receiver chain for particle detectors

et al. 2022

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A software-adaptable receiver tackles some of the highest challenges in particle detector development. While a generic approach never reaches the same performance as a dedicated development, it covers most application fields and can cut down development time and costs. Prototyping and verification of readout methods prior to the building of the complete systems are also facilitated. An in-depth study of existing particle detectors was conducted to define requirements that such a system will have to fulfill. In parallel, a first investigation of configurability is conducted to assess feasibility using an ADC as the central block in the receiver.

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Improved Rise Approximation Method for Pulse Arrival Timing

Cited by 2 publications

References 15 publications

Versatile free-running ADC-based data acquisition system for particle detectors

Versatile free-running ADC-based data acquisition system for particle detectors

Towards a generic receiver chain for particle detectors

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