Fast digital spectrometer for mixed radiation fields

Pavelek, Martin; Matěj, Zdeněk; Herman, Ondřej; Mravec, Filip; Veškrna, Martin; Přenosil, Václav; Cvachovec, František; Košťál, Michal

doi:10.1109/icsens.2017.8234012

Cited by 5 publications

(4 citation statements)

References 3 publications

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“…1. Amplified and non-amplified impulse selection [3], [6] The Cs 137 and Co 60 emitters were used for calibration of the measurement. The Compton edges in the photon instrument spectrum are for the Cs 137 a 0.477 MeV energy edge and for the Co 60 emitter a 1.17 MeV energy edge.…”

Section: Methodsmentioning

confidence: 99%

Perspective liquid scintillators for spectrometry of neutron and gamma radiation

et al. 2020

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This paper presents some results of the development of two new scintillation detectors usable for the detection and spectrometry of neutron and photon components of the mixed field. It is a series of liquid organic scintillators containing carbon, hydrogen, nitrogen and oxygen. Elements of individual scintillator designs are arranged in various chemical bonds defining physical and chemical properties of the scintillators. These scintillators have advantageous useful properties. They are non-hygroscopic, not poisonous and are not sensitive to contact with the outside atmosphere and can be stored in conventional laboratory containers.

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Section: Methodsmentioning

confidence: 99%

Perspective liquid scintillators for spectrometry of neutron and gamma radiation

et al. 2020

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“…The measurement was performed using the spectrometric system NGA-01 [4]. A 45 x 45 mm cylindrical stilbene organic scintillator was used as a detector.…”

Section: B Stilbene Measurement Apparatusmentioning

confidence: 99%

Measurement of prompt gamma field above the VR-1 water level

et al. 2021

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Pool-type reactors are an excellent source of high energy photons without neutrons because the water above fuel acts as an outstanding neutron shielding, whereas for high energy photons, it is nearly transparent. The absence of neutrons is a valuable property essential for testing semiconductor detectors because they are sensitive to neutrons, which might cause their damage. The high energy gammas are worth studying because they are responsible for radiation induced heating of reactor internal components in energy producing reactors, which might lead to their radiation induced damage by void swelling. At this effect, the helium produced in (n,α) reactions influenced by locally increased temperature clusters into bigger bubbles, which are increasing material volume, and therefore changing the geometry of internals. The referred method could be utilized e.g. for resource exploration by detecting prompt capture gammas. The prompt gamma field was measured at the VR-1 reactor with two different cores and water levels. The stilbene measurements showed relatively good agreement with the spectrum shape computed by MCNP6.2. An important result is a confirmation that the stilbene deconvolution matrix can be used with a rotated crystal. The testing measurement with HPGe detectors showed a possibility for measurement in such type of geometry.

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“…Fast digitizing cards are built on programmable gate arrays (FPGA) and fast (12 -16) bit analog-digital convertor (ADC) with a sampling frequency of (100 -1000) MS/s. The fast digital MCA follows on from the previous development of the DIM-09 and NGA-01 digitizer cards [1]. These cards use modern technologies and are capable of processing data with transfer speed higher than 40 Gbit/s.…”

Section: Introductionmentioning

confidence: 99%

Fast Digitizer Card With Integrated Peak Analysis Algorithm

2023

RAD Conference Proceedings

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The newly developed spectrometric system combines a digital multichannel analyzer and peak analysis. The fast digital (FD) card is built on programmable gate arrays (FPGA) and fast 12-bit analog-digital convertor (ADC) with a sampling frequency of (100 - 1000) MS/s. The FD card contains integrated high voltage module, preamplifier, digital interface for communication with a PC and advanced algorithms for peak analysis of the measured spectra. This system can be integrated directly into radiation detectors and perform spectrometric measurements and evaluations.

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Fast digital spectrometer for mixed radiation fields

Cited by 5 publications

References 3 publications

Perspective liquid scintillators for spectrometry of neutron and gamma radiation

Perspective liquid scintillators for spectrometry of neutron and gamma radiation

Measurement of prompt gamma field above the VR-1 water level

Fast Digitizer Card With Integrated Peak Analysis Algorithm

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