Development of the gamma-ray analysis digital filter multi-channel analyzer (GMCA)

Dambacher, M.; Zwerger, A.; Fauler, A.; Disch, C.; Stöhlker, U.; Fiederle, M.

doi:10.1016/j.nima.2011.02.020

Cited by 26 publications

(11 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We already introduced the coincidence sum mode [6,7,8] where coincident events from the Compton background of two detectors are summed up to reconstruct the initial total energy of the photons into the photo peak. With this mode it is possible to reduce the Compton background and to improve the photo peak efficiency.…”

Section: Detectorsmentioning

confidence: 99%

See 1 more Smart Citation

Digital spectroscopic system based on large volume stacked coplanar grid (Cd,Zn)Te detectors

Dambacher¹,

Zwerger²,

Fauler³

et al. 2011

2011 IEEE Nuclear Science Symposium Conference Record

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Detectorsmentioning

confidence: 99%

“…Coplanar Grid (CPG) [2,3,4] measurements are performed by our digital MCA, the GMCA [6,7]. We implemented a high voltage and detector supply that is able to supply all necessary voltages for both detectors.…”

mentioning

confidence: 99%

Digital spectroscopic system based on large volume stacked coplanar grid (Cd,Zn)Te detectors

Dambacher¹,

Zwerger²,

Fauler³

et al. 2011

2011 IEEE Nuclear Science Symposium Conference Record

Self Cite

View full text Add to dashboard Cite

show abstract

“…The multichannel analyzer (MCA) is widely used in various areas of nuclear physics experiments for spectra analysis [1,2]. The properties of MCA are closely related to linearity as well as the resolution.…”

Section: Introductionmentioning

confidence: 99%

Development of high-performance multichannel analyzer by using traditional pulse forming method and high-speed waveform sampling technology

Wan

et al. 2019

J. Inst.

View full text Add to dashboard Cite

A high performance multichannel analyzer (MCA) based on traditional used pulse forming method and high-speed waveform sampling technology was developed in this paper for spectra analysis and radioactive measurement. The self-developed MCA is composed of conditioning part and processing part. The conditioning part including pole-zero cancellation, polarity conversion, programmable amplification, active integral filter, baseline recovery and peak holding is adopted to realize amplification, Gauss shaping and peak holding functions, while the processing part mainly including dither circuit, 16-bit 100 MHz high speed ADC and FPGA is employed to make waveform sampling and spectra acquisition. The performance including the differential nonlinearity (DNL), integral nonlinearity (INL) and energy resolution are studied by using precision sliding pulse generator, NaI scintillator detector and radiation sources. The results show that the DNL and INL of the MCA are better than 1.06% and 0.09% respectively, and the energy resolution measured with NaI scintillator detector at 0.662 MeV is about 7.82%. In addition, the DNL value depends on the appropriate selection of dither channels, and the optimal dither channel is 64 for the self-developed MCA in this paper. At last, the overall performance of the self-developed MCA is compared with a commercially available NIM plug-in type MCA, the results indicate that the MCA designed in this paper is obviously better than the commercially available MCA.

show abstract

“…In this work, we will present the abilities on dead-time correction, investigated through both theoretical and experimental approaches, of a real-time digital pulse processing (DPP) system, recently developed by our group, for high-rate high-resolution radiation measurements. Currently, several spectroscopic systems are developed by using DPP techniques (Arkani et al, 2014;Arnold et al, 2006;Bolić & Drndarević, 2002;Cardoso et al, 2004;Gerardi et al, 2007;Dambacher et al, 2011;Meyer et al, 2001;Nakhostin & Veeramani, 2012;Papp & Maxwell, 2010), where the detector output signals, i.e. the output signals from charge-sensitive preamplifiers (CSPs), are directly fed into fast digitizers and then processed by using digital algorithms.…”

Section: Introductionmentioning

confidence: 99%

High-rate dead-time corrections in a general purpose digital pulse processing system

Abbene

Gerardi

2015

J Synchrotron Rad

View full text Add to dashboard Cite

Dead-time losses are well recognized and studied drawbacks in counting and spectroscopic systems. In this work the abilities on dead-time correction of a real-time digital pulse processing (DPP) system for high-rate high-resolution radiation measurements are presented. The DPP system, through a fast and slow analysis of the output waveform from radiation detectors, is able to perform multi-parameter analysis (arrival time, pulse width, pulse height, pulse shape, etc.) at high input counting rates (ICRs), allowing accurate counting loss corrections even for variable or transient radiations. The fast analysis is used to obtain both the ICR and energy spectra with high throughput, while the slow analysis is used to obtain high-resolution energy spectra. A complete characterization of the counting capabilities, through both theoretical and experimental approaches, was performed. The dead-time modeling, the throughput curves, the experimental time-interval distributions (TIDs) and the counting uncertainty of the recorded events of both the fast and the slow channels, measured with a planar CdTe (cadmium telluride) detector, will be presented. The throughput formula of a series of two types of dead-times is also derived. The results of dead-time corrections, performed through different methods, will be reported and discussed, pointing out the error on ICR estimation and the simplicity of the procedure. Accurate ICR estimations (nonlinearity < 0.5%) were performed by using the time widths and the TIDs (using 10 ns time bin width) of the detected pulses up to 2.2 Mcps. The digital system allows, after a simple parameter setting, different and sophisticated procedures for dead-time correction, traditionally implemented in complex/ dedicated systems and time-consuming set-ups.

show abstract

Development of the gamma-ray analysis digital filter multi-channel analyzer (GMCA)

Cited by 26 publications

References 7 publications

Digital spectroscopic system based on large volume stacked coplanar grid (Cd,Zn)Te detectors

Digital spectroscopic system based on large volume stacked coplanar grid (Cd,Zn)Te detectors

Development of high-performance multichannel analyzer by using traditional pulse forming method and high-speed waveform sampling technology

High-rate dead-time corrections in a general purpose digital pulse processing system

Contact Info

Product

Resources

About