CdZnTe spectra improvement through digital pulse amplitude correction using the linear sliding method

Cardoso, J. M. R.; Simões, José Augusto; Menezes, T.; Correia, C.M.B.A.

doi:10.1016/s0168-9002(03)01091-x

Cited by 15 publications

(9 citation statements)

References 5 publications

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“…An integral discriminator (Canberra, model 832) was utilized to produce logic output pulses when the linear input pulses amplitude from the amplifier exceeded a threshold. The discriminator level is adjustable from 0 to 10 V 20 . The discriminator is connected to the counter/timer through a coaxial cable.…”

Section: Methodsmentioning

confidence: 99%

Experimental evaluation of the deadtime phenomenon for GM detector: deadtime dependence on operating voltages

Almutairi

Alam

Akyurek

et al. 2020

Sci Rep

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A detailed analysis of Geiger Mueller counter deadtime dependence on operating voltage is presented in the manuscript using four pairs of radiation sources. Based on two-source method, detector deadtime is calculated for a wide range of operating voltages which revealed a peculiar relationship between the operating voltage and the detector deadtime. In the low voltage range, a distinct drop in deadtime was observed where deadtime reached a value as low as a few microseconds (22 µs for 204Tl, 26 µs for 137Cs, 9 µs for 22Na). This sharp drop in the deadtime is possibly due to reduced recombination with increasing voltage. After the lowest point, the deadtime generally increased rapidly to reach a maximum (292 µs for 204Tl, 277 µs for 137Cs, 258 µs for 22Na). This rapid increase in the deadtime is mainly due to the on-set of charge multiplication. After the maximum deadtime values, there was an exponential decrease in the deadtime reaching an asymptotic low where the manufacturer recommended voltage for operation falls. This pattern of deadtime voltage dependence was repeated for all sources tested with the exception of 54Mn. Low count rates leading to a negative deadtime suggested poor statistical nature of the data collected for 54Mn and the data while being presented here is not used for any inference.

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Section: Methodsmentioning

confidence: 99%

Experimental evaluation of the deadtime phenomenon for GM detector: deadtime dependence on operating voltages

Almutairi

Alam

Akyurek

et al. 2020

Sci Rep

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show abstract

“…At higher counting rates, the direct digitization of the preamplifier output pulses (DPP approach) is a very appealing solution, as reported in several works [7][8][9][10][11][12][13][14][15][16][17]. These systems showed good spectroscopic performance up to photoncounting rates of approximately 100 kcps, a limit due to the finite width of the shaped pulses and the difficulties on baseline restoration.…”

Section: Pulse-processing Electronics: Analog and Digital Approachesmentioning

confidence: 99%

Silicon Photomultipliers for High-Performance Scintillation Crystal Readout Applications

Abbene¹,

Gerardi²,

Principato³

2017

Analog Electronics for Radiation Detection

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“…Electronic methods have also been used to improve the spectrometric performance of CdZnTe detectors, such as pulse shape discrimination (PSD) [16–19] and pulse rise-time compensation (PRC) [17,20]. Both of these techniques are implemented in combination with hardware and software.…”

Section: Techniques To Reduce Hole Trappingmentioning

confidence: 99%

Progress in the Development of CdZnTe Unipolar Detectors for Different Anode Geometries and Data Corrections

Zhang

et al. 2013

Sensors

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CdZnTe detectors have been under development for the past two decades, providing good stopping power for gamma rays, lightweight camera heads and improved energy resolution. However, the performance of this type of detector is limited primarily by incomplete charge collection problems resulting from charge carriers trapping. This paper is a review of the progress in the development of CdZnTe unipolar detectors with some data correction techniques for improving performance of the detectors. We will first briefly review the relevant theories. Thereafter, two aspects of the techniques for overcoming the hole trapping issue are summarized, including irradiation direction configuration and pulse shape correction methods. CdZnTe detectors of different geometries are discussed in detail, covering the principal of the electrode geometry design, the design and performance characteristics, some detector prototypes development and special correction techniques to improve the energy resolution. Finally, the state of art development of 3-D position sensing and Compton imaging technique are also discussed. Spectroscopic performance of CdZnTe semiconductor detector will be greatly improved even to approach the statistical limit on energy resolution with the combination of some of these techniques.

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CdZnTe spectra improvement through digital pulse amplitude correction using the linear sliding method

Cited by 15 publications

References 5 publications

Experimental evaluation of the deadtime phenomenon for GM detector: deadtime dependence on operating voltages

Experimental evaluation of the deadtime phenomenon for GM detector: deadtime dependence on operating voltages

Silicon Photomultipliers for High-Performance Scintillation Crystal Readout Applications

Progress in the Development of CdZnTe Unipolar Detectors for Different Anode Geometries and Data Corrections

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