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Journal articles on the topic 'Gamma spectrometry'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 January 2023

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1

Dorozhkin, I. P., Yu V. Baklanova, and Ye V. Mustafina. "DEVELOPMENT OF FIELD SPECTROMETRY DATABASE." NNC RK Bulletin, no. 2 (October 17, 2021): 19–24. http://dx.doi.org/10.52676/1729-7885-2021-2-19-24.

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The paper considers the issues in design and development of databases for storage and processing gamma-spectrometric information. A model is presented that allows one to describe the conceptual schemes for storing and processing data obtained during field gamma-spectrometric surveys in principle and, in particular, on the territory of the Semipalatinsk test site. The possibilities of the database of field spectrometry are described. The interface for interaction between the user and the database management system has been implemented.

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2

Skinner, G. K. "Practical gamma-ray spectrometry." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 52, no. 3 (March 1996): 379. http://dx.doi.org/10.1016/s0584-8539(96)90113-0.

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3

Fedoriv, V. V. "The use of gamma-spectrometry and gamma-gamma-density logging for the study of reservoir rocks of complex structures." Prospecting and Development of Oil and Gas Fields, no. 2(67) (March 28, 2018): 41–46. http://dx.doi.org/10.31471/1993-9973-2018-2(67)-41-46.

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The results of the study of the poroperm properties of the complex structure reservoir rocks of the neogene deposits at the Letnianskyi gas condensate field are considered. The petrophysical model for determining the bulk content of the main components of oil and gas reservoirs is given by data of gamma-gamma-density logging and spectrometric gamma-logging. The petrophysical model of the joint use of the results of gamma-spectrometry and gamma-gamma-density logging is shown. As a result of data analysis, it has been established that there is a close relationship between uranium content and bulk density. It should also be noted that there is a close relationship between the solid organic matter and the thorium content. It has been shown that under the conditions of complex structure reservoirs, the complex processing of data of gamma spectrometry and gamma-gamma-density logging allows quantitatively to determine the following parameters in complex structures: clayness, porosity, content of solid organic matter and rock density.

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4

Shaker, Hesham H., H. Kasban, A. A. Saleh, and M. Dessouky. "Experimental investigation of the ADC sampling rate effect on the digital gamma spectrometry." Journal of Instrumentation 17, no. 09 (September 1, 2022): P09036. http://dx.doi.org/10.1088/1748-0221/17/09/p09036.

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Abstract Gamma spectrometer is not available in many laboratories because it is very expensive. Analog to digital converter ADC is the basic component of digital gamma spectrometers. The sampling rate of the ADC plays an important role in determining the performance and the cost of the gamma spectrometers. This paper investigates experimentally the ADC's sampling rate effect on the performance of the gamma spectroscopy. The conducted experiment started by sampling a real pre-amplifier output. Then, the acquired samples have been processed at different sampling rates to build the dedicated gamma spectrums. During the processing of the sampled signals, three different digital filters have been tested to distinguish their effect on the energy resolution when the sampling rate is reduced. The results of this experimental investigation will help later in proposing new low-cost and efficient gamma spectrometer prototypes.

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5

Mauz, Barbara, Paul J. Nolan, and Peter G. Appleby. "Technical note: Quantifying uranium-series disequilibrium in natural samples for dosimetric dating – Part 1: gamma spectrometry." Geochronology 4, no. 1 (April 14, 2022): 213–25. http://dx.doi.org/10.5194/gchron-4-213-2022.

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Abstract. Dosimetric dating techniques rely on accurate and precise determination of environmental radioactivity. Gamma spectrometry is the method of choice for determining the activity of 238U, 232Th, and 40K. With the aim to standardize gamma-spectrometric procedures for the purpose of determining accurate parent nuclide activities in natural samples, we outline the basics of gamma spectrometry and practical laboratory procedures here. This includes gamma radiation and instrumentation, sample preparation, finding the suitable measurement geometry and sample size for a given detector, and using the most suitable energy peaks in a gamma spectrum. The issue of correct efficiency calibration is highlighted. The procedures outlined are required for estimating contemporary parent nuclide activity. For estimating changing activities during burial specific data analyses are required, and these are also highlighted.

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6

Luca, A., P. De Felice, and G. Tanase. "Low level gamma spectrometry by beta–gamma coincidence." Applied Radiation and Isotopes 53, no. 1-2 (July 2000): 221–24. http://dx.doi.org/10.1016/s0969-8043(00)00137-8.

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7

Tugsavul, A., B. Kopuz, K. Cimcim, S. Can, H. Tel, and Ö. Ciftcioglu. "Gamma absorptiometric technique employing high resolution gamma spectrometry." International Journal of Applied Radiation and Isotopes 36, no. 9 (September 1985): 705–8. http://dx.doi.org/10.1016/0020-708x(85)90040-7.

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8

Le, Vuong Quang, Nguyen Hoang Vo, Chuong Dinh Huynh, Phuc Minh Lau, Thanh Thien Tran, and Tao Van Chau. "Study of the minimum detectable activity in gamma-ray spectrometry with various shielding configurations." Science and Technology Development Journal - Natural Sciences 1, T4 (December 31, 2017): 56–62. http://dx.doi.org/10.32508/stdjns.v1it4.496.

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In the environmental radioactivity analyzing methods using gamma-ray spectrometry, the natural activities of radionuclides were required to be higher than the minimum detectable activity (MDA). To reduce MDA, one of the popular methods is to improve the ability of reducing the background radiation of the gamma-ray spectrometry. In this work, we designed the shielding configuration with 5 cm lead and 2 mm copper (thickness of walls and top). The MDAs of gamma-ray spectrometer were 2.6–4.24 times times for 40K (1460.8 keV), 232Th (208Tl- 2614.5 keV) and 238U (214Pb- 352 keV; 214Bi- 609.3 keV, 214Bi- 1764.5 keV). In the other hand, MDA for 238U with this shielding configuration is smaller than the activity of 238U inside surface soils in Vietnam. These results showed that the gamma spectrometer with NaI(Tl) detector and this shielding configuration was suitable for measurements activity of 238U in the environmental samples.

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9

Стець, М. М., and М. В. Стець. "Gamma-spectrometry of transcarpathian zeolites." Scientific Herald of Uzhhorod University.Series Physics 14 (December 25, 2003): 179–87. http://dx.doi.org/10.24144/2415-8038.2003.14.179-187.

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10

Lépy, M. C., A. Pearce, and O. Sima. "Uncertainties in gamma-ray spectrometry." Metrologia 52, no. 3 (May 22, 2015): S123—S145. http://dx.doi.org/10.1088/0026-1394/52/3/s123.

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11

ARAKI, Harumi, and Kuniro SUGIURA. "Airborne Gamma-Ray Spectrometry(II)." Journal of the Japan society of photogrammetry and remote sensing 32, no. 2 (1993): 25–37. http://dx.doi.org/10.4287/jsprs.32.2_25.

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12

ARAKI, Harumi, and Kuniro SUGIURA. "Airborne Gamma-Ray Spectrometry. (I)." Journal of the Japan society of photogrammetry and remote sensing 32, no. 1 (1993): 36–43. http://dx.doi.org/10.4287/jsprs.32.36.

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13

Brodzinski, R. L. "Low-level gamma-ray spectrometry." Journal of Physics G: Nuclear and Particle Physics 17, S (December 1, 1991): S403—S413. http://dx.doi.org/10.1088/0954-3899/17/s/041.

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14

Jacob, P., K. Debertin, K. Miller, J. Roed, K. Saito, and D. Sanderson. "4. Airborne Gamma-Ray Spectrometry." Journal of the International Commission on Radiation Units and Measurements os27, no. 2 (December 1, 1994): 28–40. http://dx.doi.org/10.1093/jicru/os27.2.28.

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15

Jacob, P., K. Debertin, K. Miller, J. Roed, K. Saito, and D. Sanderson. "4. Airborne Gamma-Ray Spectrometry." Reports of the International Commission on Radiation Units and Measurements os-27, no. 2 (December 1994): 28–40. http://dx.doi.org/10.1093/jicru_os27.2.28.

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16

Glavič-Cindro, D., and M. Korun. "Traceability in gamma-ray spectrometry." Applied Radiation and Isotopes 68, no. 7-8 (July 2010): 1196–99. http://dx.doi.org/10.1016/j.apradiso.2009.11.006.

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17

Szentmiklósi, L., T. Belgya, G. L. Molnár, and Zs Révay. "Time resolved gamma-ray spectrometry." Journal of Radioanalytical and Nuclear Chemistry 271, no. 2 (February 2007): 439–45. http://dx.doi.org/10.1007/s10967-007-0228-8.

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18

Shives, Robert B. K., B. W. Charbonneau, and K. L. Ford. "The detection of potassic alteration by gamma‐ray spectrometry—Recognition of alteration related to mineralization." GEOPHYSICS 65, no. 6 (November 2000): 2001–11. http://dx.doi.org/10.1190/1.1444884.

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Canadian case histories document the use of airborne and ground gamma‐ray spectrometry to detect and map potassium alteration associated with different styles of mineralization. These include: volcanic‐hosted massive sulfides (Cu‐Pb‐Zn), Pilley’s Island, Newfoundland; polymetallic, magmatic‐hydrothermal deposits (Au‐Co‐Cu‐Bi‐W‐As), Lou Lake, Northwest Territories; and porphyry Cu‐Au‐(Mo) deposits at Mt. Milligan, British Columbia and Casino, Yukon Territory. Mineralization in two of these areas was discovered using airborne gamma‐ray spectrometry. In each case history, alteration produces potassium anomalies that can be distinguished from normal lithologic potassium variations by characteristic lows in eTh/K ratios. Interpretations incorporating airborne and ground spectrometry, surficial and bedrock geochemistry and petrology show that gamma‐ray spectrometric patterns provide powerful guides to mineralization. This information complements magnetic, electromagnetic, geological, and conventional geochemical data commonly gathered during mineral exploration programs.

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19

This, Kélian, Laurent Le Brusquet, Adrien Frigerio, Sébastien Colas, and Pascal Bondon. "Baseline removal in spectrometry gamma by observation of local minima." SYSTEM THEORY, CONTROL AND COMPUTING JOURNAL 1, no. 1 (June 30, 2021): 1–12. http://dx.doi.org/10.52846/stccj.2021.1.1.4.

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This paper presents a Baseline Removal method in the context of spectrometry gamma. The method implements an estimator for the full continuum based on the observation of local minima. This estimator is constructed from the statistical properties of the signal and is therefore easily explainable. The method involves a limited number of fixed parameters, which allows the automation of the process. Moreover, the method is adaptable to any peaks width, which makes it suitable for both HPGe spectrometers and scintillators. Application to real gamma spectrometry measurements are presented, as well as a discussion about the choice of the parameters, for which an adjustment is proposed.

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20

Izrael, Yu A., L. I. Boltneva, S. M. Vakulovskii, and M. V. Nikiforov. "Airborne gamma-spectrometry and its potential." Russian Meteorology and Hydrology 39, no. 8 (August 2014): 507–13. http://dx.doi.org/10.3103/s1068373914080019.

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21

SHIGEMATSU, Tsunenobu, and Shiro GODA. "Neutron irradiation-prompt .GAMMA. ray spectrometry." RADIOISOTOPES 35, no. 4 (1986): 215–23. http://dx.doi.org/10.3769/radioisotopes.35.4_215.

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22

Rulik, P., and J. Skrkal. "Emergency preparedness of gamma spectrometry laboratories." Radioprotection 44, no. 5 (2009): 601–6. http://dx.doi.org/10.1051/radiopro/20095111.

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23

Jacob, P., K. Debertin, K. Miller, J. Roed, K. Saito, and D. Sanderson. "3. Ground-Level Gamma-Ray Spectrometry." Journal of the International Commission on Radiation Units and Measurements os27, no. 2 (December 1, 1994): 15–27. http://dx.doi.org/10.1093/jicru/os27.2.15.

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24

Jacob, P., K. Debertin, K. Miller, J. Roed, K. Saito, and D. Sanderson. "3. Ground-Level Gamma-Ray Spectrometry." Reports of the International Commission on Radiation Units and Measurements os-27, no. 2 (December 1994): 15–27. http://dx.doi.org/10.1093/jicru_os27.2.15.

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25

Ihantola, Sakari, Johan Sand, Kari Peräjärvi, Juha Toivonen, and Harri Toivonen. "Principles of UV–gamma coincidence spectrometry." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 690 (October 2012): 79–84. http://dx.doi.org/10.1016/j.nima.2012.06.044.

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26

Sloboda, Michal, Helena Malá, Petr Rulík, and Věra Bečková. "EMERGENCY PREPAREDNESS OF GAMMA SPECTROMETRY LABORATORIES." Radiation Protection Dosimetry 186, no. 2-3 (November 7, 2019): 332–36. http://dx.doi.org/10.1093/rpd/ncz228.

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Abstract Currently, the territorial Radiation Monitoring Network (RMN) of the Czech Republic consists of seven laboratories equipped with gamma spectrometry High Purity Germanium (HPGe) detectors. From 2007 to 2018, five emergency exercises were carried out to test the sample throughput of these facilities and their staff. The main objective was to identify weaknesses and problem areas in the whole process from the moment of obtaining the samples to logging the results into the central RMN database. The long-term aim of these exercises is to optimize emergency response procedures. The most important factor limiting laboratory capacity is the lack of qualified personnel. The exercises showed that in the current state, these laboratories would be able to operate in 12-hour shifts for 14 days and analyze 1700 samples per day. Emergency exercises have highlighted the fact that this type of exercise should be repeated periodically in order to monitor the performance and analytical capabilities of RMN.

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27

Gehrke, Robert J. "Gamma-ray spectrometry in the environment." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 372, no. 1-2 (March 1996): 333–34. http://dx.doi.org/10.1016/s0168-9002(96)90004-2.

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28

Sundgren, Orvar. "Coincidence summing correction in gamma spectrometry." Science of The Total Environment 130-131 (March 1993): 167–75. http://dx.doi.org/10.1016/0048-9697(93)90071-d.

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29

Chugunov, I. N., V. G. Kiptily, A. E. Shevelev, and D. B. Gin. "Gamma-Ray Spectrometry of Hot Plasmas." Fusion Science and Technology 59, no. 1T (January 2011): 176–79. http://dx.doi.org/10.13182/fst11-a11601.

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30

Podgorsak, Reviewed by Matthew B. "Gamma-Ray Spectrometry in the Environment." Medical Physics 23, no. 2 (February 1996): 281. http://dx.doi.org/10.1118/1.597795.

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31

Aarnio, P. A., J. J. Ala-Heikkilä, A. Isolankila, A. Kuusi, M. Moring, M. Nikkinen, T. Siiskonen, H. Toivonen, K. Ungar, and W. Zhang. "Linssi: Database for gamma-ray spectrometry." Journal of Radioanalytical and Nuclear Chemistry 276, no. 3 (May 2, 2008): 631–37. http://dx.doi.org/10.1007/s10967-008-0610-1.

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32

Skupio, Rafal. "Portable XRF spectrometer with helium flow as a tool for lithological interpretation." Geology, Geophysics and Environment 46, no. 4 (January 29, 2021): 315–20. http://dx.doi.org/10.7494/geol.2020.46.4.315.

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Portable EDXRF (Energy Dispersive X-Ray Fluorescence) spectrometer with the ability to perform rock tests in a helium atmosphere was applied to prepare unique calibration coefficients and mineralogical models. These data could be used for the chemical profiling, chemostratigraphy, gamma-ray, TOC and lithological interpretation of borehole geological profile. The measurements were conducted on 19 samples of sandstones and compared to the XRF data without helium flow. The acquired dataset was calibrated to the chemical laboratory tests (ICP-MS), gamma-ray spectrometry measurements (RT-50) and combined with the mineralogical data (XRD). The new methodology enables the measurement of sodium and enhances the possibility of detecting magnesium, thorium and uranium, compared to standard handheld XRF spectrometers. The applied method is dedicated to whole cores (without sample preparation) or cuttings which must be cleaned, dried, milled and pressed.

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33

Moskalewicz, Damian. "Spektrometryczne profilowanie gamma w odsłonięciach geologicznych – metody i przykłady zastosowania." Przegląd Geologiczny 70, no. 11 (December 21, 2022): 806–15. http://dx.doi.org/10.7306/2022.31.

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34

Persson, Henrik, and Kara Phillips. "Peak Area Consistency Evaluation in Gamma Spectrometry." EPJ Web of Conferences 253 (2021): 07002. http://dx.doi.org/10.1051/epjconf/202125307002.

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Quantification of radionuclide activities in gamma spectrometry can be a challenging task. It depends on efficiency calibration, peak area calculation, nuclide decay data and correction factors, such as attenuation correction or true coincidence summing corrections. These quantities can present significant challenges to an accurate analysis. It is therefore desirable to have a way of assessing the quality of the radionuclide quantification that can be applied to samples with unknown activities and radionuclide compositions. A verification of the self-consistency of the analysis is one possible way of accomplishing this. In gamma spectrometry it is possible to calculate radionuclide activities using information from multiple gamma emission energies. This leads to an overdetermined system for which the solution can be used to look for inconsistencies. By calculating the recovered peak areas from the radionuclide activities and comparing these to the measured peak areas, outliers can be identified and by resolving these inconsistencies the analysis of the spectrum can be improved. This peak area consistency evaluation can be used to find incorrect shape of the efficiency calibration, missing interferences in the nuclide decay data, and point to peaks where the peak area calculation needs to be optimized. The performance of the method has been shown on a simple spectrum consisting of three radionuclides that are interfering with each other as well as a complex spectrum with unknown radionuclide composition and activities. The method will be integrated into a future version the Genie 2000 Gamma Spectroscopy Software.

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35

Materna, T., A. Letourneau, Ch Amouroux, A. Marchix, O. Litaize, O. Sérot, D. Regnier, et al. "Fission studies by prompt gamma-ray spectrometry." EPJ Web of Conferences 93 (2015): 02020. http://dx.doi.org/10.1051/epjconf/20159302020.

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36

Minty, Brian. "Accurate Noise Reduction for Gamma-Ray Spectrometry." ASEG Extended Abstracts 2003, no. 2 (August 2003): 1. http://dx.doi.org/10.1071/aseg2003ab110.

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37

Ulin, S. E., V. V. Dmitrenko, K. F. Vlasik, V. M. Grachev, R. R. Egorov, K. V. Krivova, A. I. Madzhidov, Z. M. Uteshev, I. V. Chernysheva, and A. E. Shustov. "Gamma Spectrometry System for Decommissioning Nuclear Facilities." Bulletin of the Lebedev Physics Institute 47, no. 6 (June 2020): 176–80. http://dx.doi.org/10.3103/s1068335620060081.

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38

Bucher, B. "Composite mapping experiences in airborne gamma spectrometry." Radiation Protection Dosimetry 160, no. 4 (March 23, 2014): 288–92. http://dx.doi.org/10.1093/rpd/ncu015.

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39

de Vismes, A., R. Gurriaran, and X. Cagnat. "Anti-Compton gamma spectrometry for environmental samples." Radioprotection 44, no. 5 (2009): 613–18. http://dx.doi.org/10.1051/radiopro/20095113.

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40

Hjerpe, Thomas, Robert R. Finck, and Christer Samuelsson. "STATISTICAL DATA EVALUATION IN MOBILE GAMMA SPECTROMETRY." Health Physics 80, no. 6 (June 2001): 563–70. http://dx.doi.org/10.1097/00004032-200106000-00006.

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41

Shebell, P., S. Faller, M. Monetti, F. Bronson, R. Hagenauer, C. L. Jarrell, D. Keefer, et al. "AN IN SITU GAMMA-RAY SPECTROMETRY INTERCOMPARISON." Health Physics 85, no. 6 (December 2003): 662–77. http://dx.doi.org/10.1097/00004032-200312000-00012.

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42

Jacob, P., K. Debertin, K. Miller, J. Roed, K. Saito, and D. Sanderson. "2. Basic Principles of Gamma-Ray Spectrometry." Journal of the International Commission on Radiation Units and Measurements os27, no. 2 (December 1, 1994): 4–14. http://dx.doi.org/10.1093/jicru/os27.2.4.

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43

Jacob, P., K. Debertin, K. Miller, J. Roed, K. Saito, and D. Sanderson. "2. Basic Principles of Gamma-Ray Spectrometry." Reports of the International Commission on Radiation Units and Measurements os-27, no. 2 (December 1994): 4–14. http://dx.doi.org/10.1093/jicru_os27.2.4.

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44

Plastino, Wolfango, Pierino De Felice, and Francesco de Notaristefani. "Radon gamma-ray spectrometry with YAP:Ce scintillator." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 486, no. 1-2 (June 2002): 146–49. http://dx.doi.org/10.1016/s0168-9002(02)00692-7.

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45

Burnett, J. L., J. L. Slack, and J. M. Bowen. "Time sequence gamma-spectrometry of irradiated salt." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 947 (December 2019): 162648. http://dx.doi.org/10.1016/j.nima.2019.162648.

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46

Isakar, K., K. Realo, M. Kiisk, and E. Realo. "Efficiency corrections in low-energy gamma spectrometry." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 580, no. 1 (September 2007): 90–93. http://dx.doi.org/10.1016/j.nima.2007.05.044.

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47

Kroupa, Tomáš, Michal Setnička, Alena Čtvrtečková, and René Marek. "REFERENCE SURFACE FOR IN SITU GAMMA SPECTROMETRY." Radiation Protection Dosimetry 186, no. 2-3 (November 18, 2019): 263–67. http://dx.doi.org/10.1093/rpd/ncz215.

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Abstract Chemical laboratories of the Fire Rescue Service of the Czech Republic are part of the radiation monitoring network and participate in the radiation situation monitoring in the Czech Republic. Measurements in situ are crucial for monitoring the radiation situation in emergencies associated with the deposition of radioactive substances on a large area. Those data can be used for estimating a possible dose obtained either by staying in a contaminated area or by consumption of food produced in the area. For correct setting of device parameters (e.g. efficiency calibration), standard samples should be measured regularly. Unlike in laboratory, verification in field conditions is difficult. Therefore, a search for suitable reference areas containing a higher amount of 137Cs homogeneously dispersed after the fall of a radioactive cloud passing through our territory following the Chernobyl accident was conducted. Small airports in the East Bohemia regions were identified as suitable candidates.

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48

Ehmann, William D. "Books: A Manual on Gamma-Ray Spectrometry." Analytical Chemistry 68, no. 1 (January 1996): 42A—43A. http://dx.doi.org/10.1021/ac9618076.

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49

Semkow, T. M., P. P. Parekh, C. D. Schwenker, A. J. Khan, A. Bari, J. F. Colaresi, O. K. Tench, G. David, and W. Guryn. "Low-background gamma spectrometry for environmental radioactivity." Applied Radiation and Isotopes 57, no. 2 (August 2002): 213–23. http://dx.doi.org/10.1016/s0969-8043(02)00085-4.

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50

Pantelić, Gordana. "Gamma spectrometry calibrations with natural radioactive materials." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 369, no. 2-3 (February 1996): 572–73. http://dx.doi.org/10.1016/s0168-9002(96)80053-2.

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