The Gesta Tancredi of Ralph of Caen

Bachrach, Bernard S.; Bachrach, David S.

doi:10.4324/9781315239408

Cited by 7 publications

(8 citation statements)

References 0 publications

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“…The LED was housed outside of the light-tight box, and an optical fiber guided the light to the SiPM. The SiPM was read out via a Philips Scientific Amplifier 6954 [13] by a CAEN QDC V965 [14]. The read-out was AC coupled with a time constant τ AC ≈ 5 µs.…”

Section: Sensors Investigated and Measurementsmentioning

confidence: 99%

On the characterisation of SiPMs from pulse-height spectra

Chmill

Garutti

Klanner

et al. 2017

Nuclear Instruments and Methods in Physics Research Section A:

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Methods are developed, which use the pulse-height spectra of SiPMs measured in the dark and illuminated by pulsed light, to determine the pulse shape, the dark-count rate, the gain, the average number of photons initiating a Geiger discharge, the probabilities for prompt cross-talk and after-pulses, as well as the electronics noise and the gain fluctuations between and in pixels. The entire pulse-height spectra, including the background regions in-between the peaks corresponding to different number of Geiger discharges, are described by single functions. As a demonstration, the model is used to characterise a KETEK SiPM with 4384 pixels of 15 µm×15 µm area for voltages between 2.5 and 8 V above the breakdown voltage. The results are compared to other methods of characterising SiPMs. Finally, examples are given, how the complete description of the pulse-eight spectra can be used to optimise the operating voltage of SiPMs, and a method for an in-situ calibration and monitoring of SiPMs, suited for large-scale applications, is proposed.

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Section: Sensors Investigated and Measurementsmentioning

confidence: 99%

On the characterisation of SiPMs from pulse-height spectra

Chmill

Garutti

Klanner

et al. 2017

Nuclear Instruments and Methods in Physics Research Section A:

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“…The particular WFD model used is the CAEN V1725 [26] which has a sample rate of 250 MHz and 14 bit depth per sample. Studies using prototype detector modules [23,27] determined that these digitization parameters would meet the PSD and dynamic range requirements of PROSPECT.…”

Section: Data Acquisitionmentioning

confidence: 99%

The PROSPECT reactor antineutrino experiment

Ashenfelter

Balantekin

Baldenegro

et al. 2019

Nuclear Instruments and Methods in Physics Research Section A:

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Preprint submitted to Nuclear Instruments and MethodsThe Precision Reactor Oscillation and Spectrum Experiment, PROSPECT, is designed to make both a precise measurement of the antineutrino spectrum from a highly-enriched uranium reactor and to probe eV-scale sterile neutrinos by searching for neutrino oscillations over meter-long baselines. PROSPECT utilizes a segmented 6 Li-doped liquid scintillator detector for both efficient detection of reactor antineutrinos through the inverse beta decay reaction and excellent background discrimination. PROSPECT is a movable 4-ton antineutrino detector covering distances of 7 m to 13 m from the HFIR reactor core. It will probe the best-fit point of theν e disappearance experiments at 4 σ in 1 year and the favored regions of the sterile neutrino parameter space at more than 3 σ in 3 years. PROSPECT will test the origin of spectral deviations observed in recent Theta13 experiments, search for sterile neutrinos, and address the hypothesis of sterile neutrinos as an explanation of the reactor anomaly.This paper describes the design, construction, and commissioning of PROSPECT and reports first data characterizing the performance of the PROSPECT antineutrino detector.

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“…The 1275 keV gamma quanta from the 22 Na source were suppressed by a lead collimator with a 4 mm slit. Signals of the SiPMs coupled to the WLS strips were amplified with Advatech-UK AMP-0604 amplifiers [23] and were sampled with CAEN Digitizer DT5742 [24] with a frequency of 1 GHz and a resolution of 12 bits. Readout of the digitizer was triggered by a coincidence of pulses from the plastic scintillator and the BGO detector, ensuring selection of annihilation quanta from the 22 Na source.…”

Section: Experimental Set-upmentioning

confidence: 99%

Measurement of gamma quantum interaction point in plastic scintillator with WLS strips

Smyrski

Alfs

Bednarski

et al. 2017

Nuclear Instruments and Methods in Physics Research Section A:

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We demonstrated the feasibility of measuring the axial coordinate of a gamma quantum interaction point in a plastic scintillator bar via the detection of scintillation photons escaping from the scintillator with an array of wavelengthshifting (WLS) strips. Using a test set-up comprising a BC-420 scintillator bar and an array of sixteen BC-482A WLS strips we achieved a spatial resolution of 5 mm (σ) for annihilation photons from a 22 Na isotope. The studied method can be used to improve the spatial resolution of a plastic-scintillator-based PET scanner which is being developed by the J-PET collaboration.

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The Gesta Tancredi of Ralph of Caen

Cited by 7 publications

References 0 publications

On the characterisation of SiPMs from pulse-height spectra

On the characterisation of SiPMs from pulse-height spectra

The PROSPECT reactor antineutrino experiment

Measurement of gamma quantum interaction point in plastic scintillator with WLS strips

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