Pulse Height, Pulse Shape, and Time Interval Analyzer for Delayed $\alpha /\beta$ Coincidence Counting

Miłosz, Sebastian; Tudyka, Konrad; Walencik-Łata, Agata; Barwinek, Sebastian; Bluszcz, Andrzej; Adamiec, Grzegorz

doi:10.1109/tns.2017.2731852

Cited by 12 publications

(8 citation statements)

References 19 publications

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“…The developed system, with the same name, offers new possibilities of increasing dose rate precession and accuracy, measuring small samples including internal dose rate and obtaining reliable dose rate in samples where secular equilibrium is uncertain. A detailed description of the mDose system is given in Section 2.2.2 and by Miłosz et al (2017), Tudyka et al (2018) and Tudyka et al (2020).…”

Section: Application Of Results In Projectsmentioning

confidence: 99%

Luminescence Dating Procedures at the Gliwice Luminescence Dating Laboratory

et al. 2021

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The Gliwice Luminescence Laboratory (GLL) is a part of the Institute of Physics – Centre for Science and Education at the Silesian University of Technology, which has gradually evolved since the 1980s. To date, nearly 3500 samples have been dated using luminescence from materials such as ceramics, bricks, and sediments from archaeological and geological sites. Currently, the laboratory is equipped with four luminescence readers and three gamma spectrometers, allowing luminescence dating of approximately 300 samples annually for the needs of research projects. This article focuses on the laboratory procedures used in GLL to obtain luminescence ages. Recent improvements of the GLL's facilities and new equipment, as well as the performance spanning the Laboratory's 30 years of activity, are discussed in terms of obtained results and the involvement in national and international projects.

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Section: Application Of Results In Projectsmentioning

confidence: 99%

Luminescence Dating Procedures at the Gliwice Luminescence Dating Laboratory

et al. 2021

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“…α and β particles are discriminated based on the different shapes of the pulses induced by the particles. Amplified by the PMT, these pulses are identified and analysed by a pulse analyser unit that has previously been described in detail by Miłosz et al (2017). During the measurement process, an analogue-to-digital converter (ADC) samples and transforms the incoming pulses into digital values (ADC values).…”

Section: Technical Descriptionmentioning

confidence: 99%

“…Recently, a laboratory-based, combined α and β particle detection instrument called the µDose system has been developed (e.g. Miłosz et al, 2017;Tudyka et al, 2018). Providing a cost-efficient approach, this novel device allows the determination of radionuclide concentrations of 238 U, 235 U, 232 Th and 40 K. Up to now, this measurement system has not been tested systematically.…”

Section: Introductionmentioning

confidence: 99%

The <i>μ</i>Dose system: determination of environmental dose rates by combined alpha and beta counting – performance tests and practical experiences

et al. 2022

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Abstract. The μDose system is a recently developed analytical instrument applying a combined α- and β-sensitive scintillation technique for determining the radioactivity arising from the decay chains of 235U, 238U and 232Th as well as from the decay of 40K. The device was designed to meet the particular requirements of trapped charge dating methods and allows the assessment of environmental (i.e. low) levels of natural radionuclides. The μDose system was developed as a piece of low-cost laboratory equipment, but a systematic test of its performance is still pending. For the first time, we present results from a comprehensive performance test based on an inter-laboratory comparison. We compare the results obtained with μDose measurements with those from thick source alpha counting (TSAC), inductively coupled plasma optical emission spectrometry (ICP-OES) and low-level high-resolution gamma spectrometry (HRGS) applied in five participating laboratories. In addition, the reproducibility and accuracy of μDose measurements were tested on certified reference materials distributed by the International Atomic Energy Agency (IAEA; RGU-1, RGTh-1 and RGK-1) and on two loess standards (Nussy and Volkegem) frequently used in trapped charge dating studies. We compare μDose-based results for a total of 47 sediment samples with results previously obtained for these materials by well-established methods of dose rate determination. The investigated natural samples cover a great variety of environments, including fluvial, aeolian, littoral, colluvial and (geo-)archaeological sites originating from high and low mountain regions as well as from lowlands in tropical areas, drylands and mid-latitude zones of Europe, Africa, Australia, Central Asia and the Americas. Our results suggest the μDose system's capability of assessing low-level radionuclide contents with very good accuracy and precision comparable to well-established dosimetry methods. Based on the results of our comparative study and with respect to the practical experiences gained so far, the μDose system appears to be a promising tool for trapped charge dating studies.

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“…The pulse analyzer has been described in detail in Miłosz et al (2017), therefore here only a brief description is given. The α and β particles produce scintillations in two different scintillator layers.…”

Section: Electronicsmentioning

confidence: 99%

μDose: A compact system for environmental radioactivity and dose rate measurement

Tudyka

Miłosz

Adamiec

et al. 2018

Radiation Measurements

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µDose is a novel compact analytical instrument for assessing low level 238 U, 235 U, 232 Th decay chains and 40 K radioactivity. The system is equipped with a dual α/β scintillator allowing discrimination between α and β particles. The unique built-in pulse analyzer measures the amplitude of each individual pulse, its shape and the time interval between subsequent pulses. This allows the detection of pulse pairs arising from subsequent decays of 214 Bi/ 214 Po, 220 Rn/ 216 Po, 212 Bi/ 212 Po and 219 Rn/ 215 Po. The obtained α and β counts and four separate decay pair counts are used to calculate 238 U, 235 U, 232 Th and 40 K specific activities in measured samples through the use of radioactivity standards. The µDose system may be equipped with various photomultipliers and counting containers to assess radionuclide concentrations of samples of masses ranging between 0.4 g and 4 g. As a result, the user can customize the system to their needs and maximize the instrument's performance. The system is controlled by dedicated software with a graphical user interface and modules for system calibration, data visualization, specific radioactivity calculations and dose rate determination using the infinite matrix assumption.

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Pulse Height, Pulse Shape, and Time Interval Analyzer for Delayed $\alpha /\beta$ Coincidence Counting

Cited by 12 publications

References 19 publications

Luminescence Dating Procedures at the Gliwice Luminescence Dating Laboratory

Luminescence Dating Procedures at the Gliwice Luminescence Dating Laboratory

The <i>μ</i>Dose system: determination of environmental dose rates by combined alpha and beta counting – performance tests and practical experiences

μDose: A compact system for environmental radioactivity and dose rate measurement

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Pulse Height, Pulse Shape, and Time Interval Analyzer for Delayed $\alpha /\beta$ Coincidence Counting

Cited by 12 publications

References 19 publications

Luminescence Dating Procedures at the Gliwice Luminescence Dating Laboratory

Luminescence Dating Procedures at the Gliwice Luminescence Dating Laboratory

The &lt;i&gt;μ&lt;/i&gt;Dose system: determination of environmental dose rates by combined alpha and beta counting – performance tests and practical experiences

μDose: A compact system for environmental radioactivity and dose rate measurement

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The <i>μ</i>Dose system: determination of environmental dose rates by combined alpha and beta counting – performance tests and practical experiences