Application of Virtual Instrumentation in Nuclear Physics Experiments

Pěchoušek, Jiří

doi:10.5772/19525

Cited by 3 publications

(1 citation statement)

References 25 publications

(24 reference statements)

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“…Recently, instruments based on a PCI eXtensions for Instrumentation (PXI) platform have been constructed for NMR [41,42] and Mossbauer spectroscopy experiments. [43,44] The PXI architecture offers easy synchronization, modularity and portability. A wide array of "plug-and-play" arbitrary waveform generator (AWG), digitizer cards and radiofrequency (RF) generators are available from over different 55 vendors for easy instrument customization.…”

Section: Solution Dnp At Low Magnetic Fieldmentioning

confidence: 99%

A table‐top PXI based low‐field spectrometer for solution dynamic nuclear polarization

Biller

Stupic

Moreland

2017

Magnetic Reson in Chemistry

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We present the development of a portable dynamic nuclear polarization (DNP) instrument based on the PCI eXtensions for Instrumentation platform. The main purpose of the instrument is for study of H polarization enhancements in solution through the Overhauser mechanism at low magnetic fields. A DNP probe set was constructed for use at 6.7 mT, using a modified Alderman-Grant resonator at 241 MHz for saturation of the electron transition. The solenoid for detection of the enhanced H signal at 288 kHz was constructed with Litz wire. The largest observed H enhancements (ε) at 6.7 mT for N-CTPO radical in air saturated aqueous solution was ε~65. A concentration dependence of the enhancement is observed, with maximum ε at 5.5 mM. A low resonator efficiency for saturation of the electron paramagnetic resonance transition results in a decrease in ε for the 10.3 mM sample. At high incident powers (42 W) and long pump times, capacitor heating effects can also decrease the enhancement. The core unit and program described here could be easily adopted for multi-frequency DNP work, depending on available main magnets and selection of the "plug and play" arbitrary waveform generator, digitizer, and radiofrequency synthesizer PCI eXtensions for Instrumentatione cards.

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Section: Solution Dnp At Low Magnetic Fieldmentioning

confidence: 99%

A table‐top PXI based low‐field spectrometer for solution dynamic nuclear polarization

Biller

Stupic

Moreland

2017

Magnetic Reson in Chemistry

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Development of fast pulse processing algorithm for nuclear detectors and its utilization in LabVIEW-based Mössbauer spectrometer

et al. 2014

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Speed of data processing is regarded as a crucial parameter in the nuclear physics experiment, where a dead time elimination or reduction is needed. In the case of computer-based systems, fast data processing algorithms are necessary to be exploited for saving a computational time and to reduce a total duration of the experiment. Time of measurement is one of the key parameters for implementation of specific experiments. Fast pulse processing algorithm (FPPA) of detector events was developed in LabVIEW™ and is capable to run up to 70% faster compared to the performance of previously used algorithm. The results show increased performance and applicability in complex experiments. Detailed description of the overall algorithm with relevant data flow processing and its utilization in Mössbauer spectrometer is presented.

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Analogue and digital analysis of the effects of some parameters in determination of the best experimental energy resolution

Ermis¹,

Tektas²,

Pilicer³

et al. 2014

Turk J Phys

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The gamma-ray energy spectrum of 137 Cs was obtained according to different parameters such as preamplifier capacitance, the amplifier's coarse gain level, power supply voltage for the detector, and source-to-detector distance. This investigation was performed with both analogue and digital methods. In order to examine the effects of these parameters on energy resolution, a NaI(Tl) inorganic scintillation detector was used. In addition, the gamma energy spectrum of the radioisotope was obtained by means of FLUKA, which is one of the Monte Carlo simulation programmes. Energy resolution of the detector by these 3 methods was calculated. These resolution values were compared with each other.Effects of the parameters above on the resolutions from analogue and digital methods were discussed.

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Application of Virtual Instrumentation in Nuclear Physics Experiments

Cited by 3 publications

References 25 publications

A table‐top PXI based low‐field spectrometer for solution dynamic nuclear polarization

A table‐top PXI based low‐field spectrometer for solution dynamic nuclear polarization

Development of fast pulse processing algorithm for nuclear detectors and its utilization in LabVIEW-based Mössbauer spectrometer

Analogue and digital analysis of the effects of some parameters in determination of the best experimental energy resolution

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