Abstract
The nuclear analytical method of element mapping in large-sized (several dozen cm2) polished sections of geological samples was worked out. The method includes activation of the sample by bremstrahlung of an electron accelerator using a developed device for uniform sample irradiation. The next step is to obtain a series of digital autoradiograms, which is processed by the program for estimation of the decay dynamics of induced radioactivity for each pixel of the image. The data obtained are converted into a series of metaimages characterizing the distribution of induced radionuclides (measured elements) over the surface of polished thin sections. The results of mapping are in a good agreement with the data of scanning electron microscopy. The developed method is suggested for screening detection of element distribution including distinguishing of the sample zones containing PGE inclusions.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Yu. F. Babikova, V. M. Gusakov, V. M. Minaev, and G. G. Ryabova, Analytical Autoradiography (Energoatomizdat, Moscow, 1985) [in Russian].
G. N. Flerov and I. G. Berzina, Radiography of Minerals, Rocks, and Ores (Atomizdat, Moscow, 1979) [in Russian].
W. Görner, O. Haase, and Chr. Segebade, “BEAMGAA with photons–the axial gradient,” J. Radioanal. Nucl. Chem. 271 (1), 199–201 (2007).
A. Kerkapoly, N. Vajda, and T. Pinter, “Film autoradiography used for hot particle identification,” J. Radioanal. Nucl. Chem. 265 (3), 423–429 (2009).
V. P. Kolotov, A. Yu. Andriyanov, N. N. Dogadkin, S. N. Shilovreeva, B. A.Chapyzhnikov, Yu. M. Tsipenyuk, and V. I. Korobkov, “Determination of platinum–group elements and gold in silicates by gamma activation autoradiography and instrumental gamma activation analysis,” J. Anal. Chem. 58 (9), 882–885 (2003).
V. P. Kolotov, S. N. Shilobreeva, A. Yu. Andriyanov, N. N. Dogadkin, B. A. Chapyzhnikov, M. V. Alenina, “Development of digital autoradiography technique for the determination of the platinum–group elements in geological materials,” Radiochim. Acta 89, 765–769 (2001).
V. P. Kolotov, A. Yu. Andriyanov, S. N. Shilobreeva, V. I. Korobkov, N. N. Dogadkin, B. A. Chapyzhnikov, and Yu. M. Tsipenyuk, “Development of digital gamma–activation autoradiography for the determination of platinum group element inclusions in geological samples,” J. Radioanal. Nucl. Chem. 271 (3), 671–678 (2007).
V. P. Kolotov, D. S. Grozdov, N. N. Dogadkin, and V. I. Korobkov, “Development of digital gamma–activation autoradiography for analysis of samples of large area,” Radiochim. Acta. Suppl. 1, 299–303 (2011). doi 10.1524/rcpr.2011.0052
V. P. Kolotov, D. S. Grozdov, and N. N. Dogadkin, “Enhancement of digital gamma activation autoradiography capabilities by means of computer analysis of the time series images,” J. Radioanal. Nucl. Chem. 291 (2), 347–352 (2012).
V. P. Kolotov, D. S.Grozdov, and N. N. Dogadkin, “Generation of metaimages while analysis of the time series autoradiograms,” J. Radioanal. Nucl. Chem. 296 (2), 991–996 (2013).
V. P. Kolotov, D. S. Grozdov, N. N. Dogadkin, A. A. Shiryaev and V. I. Korobkov, “Quantitative digital 2D densitometry,” J. Analyt. Chem. 70 (3), 287–291 (2015).
V. P. Kolotov, D. S. Grozdov, N. N. Dogadkin, and A. A. Shiryaev, “Photo–and digital–detectors for quantitative digital densitometry for distribution analysis of ores by means of gamma–activation,” J. Radioanal. Nucl. Chem. 304 (1), 171–175 (2015).
N. A. Krivolutskaya, Siberian Traps and Pt–Cu–Ni Deposits in the Noril’sk Area (Springer, 2016).
V. I. Popova, Neutron-Activation Radiography of Minerals (IMIN UrO RAN, Miass, 1995) [in Russian].
A. W. Rogers, Techniques of Autoradiography (Elsevier, London, 1967).
S. E. Vinokurov, Yu. M. Kulyako, O. M. Slyuntchev, S. I. Rovny, and B. F. Myasoedov “Low–temperature immobilization of actinides and other components of high–level waste in magnesium potassium phosphate matrices,” J. Nucl. Mater. 385, 189–192 (2009).
I. E. Vlasova, S. N. Kalmykov, Yu. A. Sapozhnikov, S. G. Simakin, A. Yu. Anokhin, R. A. Aliev, and D. A. Tsarev, “Radiography and local microanalysis for detection and investigation of actinide–containing micro particles,” Russ. Radiochem. 48 (6), 551–556 (2006).
I. E. Vlasova, St. N. Kalmykov, Yu. V. Konevnik, S. G. Simakin, I. S. Simakin, A. Yu. Anokhin and Yu. A. Sapozhnikov, “Alpha track analysis and fission track analysis for localizing actinide–bearing micro–particled in the Yenisey River bottom sediments,” Radiat. Meas. 43, 303–308 (2008).
I. A. Vlasova, B. Shiryaev, B. Ogorodnikov, E. Burakov, R. Dolgopolova, A. Senin, Y. Averin, Zubavichus, and S. Kalmykov, “Radioactivity distribution in fuel–containing materials (Chernobyl “lava”) and aerosols from the Chernobyl “Shelter”,” Radiation Measur. 83, 20–25 (2015).
C. J. Zeissler, R. M. Lindstrom, and J. P. McKinley, “Radioactive particle analysis by digital autoradiography,” J. Radioanal. Nucl. Chem. 248 (2), 407–412 (2001).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Kolotov, V.P., Grozdov, D.S. & Dogadkin, N.N. Digital gamma activation autoradiography: A method for the study of inclusions and mineralogical texture of large size geological polished thin sections. Geochem. Int. 54, 1168–1174 (2016). https://doi.org/10.1134/S0016702916130097
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0016702916130097