Amplifiers for use with photomultipliers—who needs them?

Wright, A.G.

doi:10.1016/s0168-9002(03)00800-3

Cited by 14 publications

(7 citation statements)

References 3 publications

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“…PMTs are modelled as ideal current sources in parallel with an output resistance R 0 ( 410 12 O) and capacitance C 0 (5-20 pF-typical 10 pF), as shown in Fig. 7 [27,28]. The measured output depends on the load resistance (R L ) and capacitance (C L ) in combination with R 0 and C 0 .…”

Section: Conversion To Radiant Flux and Intensitymentioning

confidence: 99%

Progress towards absolute intensity measurements of emissions from high temperature thermographic phosphors

Khalid

Kontis

2011

Journal of Luminescence

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Section: Conversion To Radiant Flux and Intensitymentioning

confidence: 99%

Progress towards absolute intensity measurements of emissions from high temperature thermographic phosphors

Khalid

Kontis

2011

Journal of Luminescence

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“…2) Transimpedance Amplifier: Currents signals received from the charge division network and last dynode are converted in voltage signals by means of a transimpedance amplifier [12], [13]. Besides, this amplifier configuration isolates the PMT plus the resistive network stage output from the amplification and shaping stage input.…”

Section: Analog Front-end 1) Resistive Charge Division Networkmentioning

confidence: 99%

Accurate Simulation Testbench for Nuclear Imaging Systems

Monzó

Aliaga

Herrero

et al. 2008

IEEE Trans. Nucl. Sci.

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Current testbenches for nuclear imaging devices aim to simulate only a single stage of the system at a time. This approach is useful in early design stages where accuracy is not necessary. However, it would be desirable that different tools could be combined to achieve more detailed simulations. In this work, a high precision testbench is presented. It has been developed to test nuclear imaging systems. Its accuracy lies in the possibility of linking different simulation tools using the right one for each part of the system. High energy events are simulated using Geant4 (High Energy Simulator). Analog and digital electronics are verified using SpectreVerilog or UltrasimVerilog (Cadence Design Syst. Inc., San Jose, CA, USA) and ModelSim (Mentor Graphics Corp, Wilsonville, OR, USA). This testbench structure can be used to test any physical topology, scintillation crystals, Photomultiplier Tubes (PMTs), Avalanche Photodiodes (APDs), with any kind of ASIC, discrete analog and digital electronics, thus reducing the prototyping and design time. New system developments can be easily verified using behavioral and circuital description models for analog and digital electronics. Finally, a dual-head continuous LSO scintillation crystal Positron Emission Tomography (PET) system has been used as an example for evaluation of the testbench.Index Terms-Biomedical nuclear imaging, design methodology, positron emission tomography (PET), simulation, system analysis and design.

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“…The first one is related to the output variation of the photomultiplier tube caused by the continuous operation (Wright, 2003;Bonutti et al, 1993). The variation of the photomultiplier sensitivity occurs mainly as a result of a variation in secondary emission, particularly in the last stages of the photomultiplier, where the currents are the highest.…”

Section: Introductionmentioning

confidence: 99%

Self-calibration techniques of underwater gamma ray spectrometers

Vlachos¹

2005

Journal of Environmental Radioactivity

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Amplifiers for use with photomultipliers—who needs them?

Cited by 14 publications

References 3 publications

Progress towards absolute intensity measurements of emissions from high temperature thermographic phosphors

Progress towards absolute intensity measurements of emissions from high temperature thermographic phosphors

Accurate Simulation Testbench for Nuclear Imaging Systems

Self-calibration techniques of underwater gamma ray spectrometers

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