Christo Vachkov Angelov

Experience

2005-present

Associate Professor Dr., Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria

2000-2005

Assistant Professor (1-st degree) Dr., Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria

1996-2000

Assistant Professor (2-nd degree) Dr., Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria

1994-1996

Assistant Professor (3-rd degree) Dr., Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria

1988-1994

Research Scientist, Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria

Languages

English, French, Russian

Societies

Interests

Papers

1. Т.Тroev, Ch.Angelov, I.Mincov, “Positron annihilation measurements of quenched-in defects in Ni”, Phys.Lett. A,138, N 1,2 , 1989, p. 65-68.

2. T.Troev, I.Mincov, A.Shofan, Ch.Angelov, “Positron lifetime and Doppler broadening of annihilation gamma-line measurements irradiated hromium”, Phys.Lett. A, 140, N 3 ,1989, p.147-150.

3. V.Dimova, G.Zlateva, V.Gaidarova, T.Markov, D.Danailov, Ch.Angelov, “Nitrogen Ion Implantation in Al-4.wt.%Cu alloy”, Bulg.J.Ph.5, v.20, N 3-4, p.39, 1993.

4. S.Balabanov, E.Skodreva, T.Tsvetkova, B.Amov, Ch.Angelov, A.Djakov, “Electrical and Optical properties of vitreous chalcogenide films after carbon ion implantation”, Proc. of the 8th Int. School on Vacuum, Electron and Ion Technologies, NOVA - New York, 1993.

5. S.Balabanov, E.Skodreva, T.Tsvetkova, B.Amov, Ch.Angelov, A.Djakov, “Influence of C⁺ Ion Implantation on the properties of amorphous chalcogenide films”, Proc. of the 8th Int. School on Vacuum, Electron and Ion Technologies, 26-31.10.1993, Varna, Bulgaria.

6. N.Tzenov, M.Tzolov, D.Dimova-Malinovska, T.Tsvetkova, Ch.Angelov, G.Adriaenssens, H.Pattyn, “Ion implantation induced modification of a-SiC:H”, Nucl.Instr. and Meth. B 84 (1994) 195-198.

7. S.Balabanov, E.Skordeva, V.Krastev, Ts.Marinova, A.Djakov, Ch.Angelov, “Peculiarities of the DC Conductivity of Thin Amorphous As-Se Layers after C⁺ Implantation”, Phys.stat.sol. (a) 151, p.143, 1995.

8. S.Balabanov, T.Tsvetkova, K.Nanev, E.Skordeva, Ts.Marinova, V.Krastev, B.Amov, Ch.Angelov. “Formation of carbon aggregates in ion-implanted amorphous As-Se. Journal of Non-Crystalline solids”, 192&193, (1995), 482-485.

9. S.Simov, M.Kalitzova, D.Karpuzov, R.Yankov, Ch.Angelov, J.Faure, P.Bonhomme, G.Balossier, “High-dose phenomena in Zn implanted Silicon crystals, J.Appl.Phys. 79(7), (1996), 3470-3476.

10. J.Faure, Ch.Angelov, M.Kalitzova, S.Simov, “Transmission electron microscopy investigation of the crystal-amorphous-polycrystal transition in silicon during bismuth room temperature ion implantation”, Nucl.Instr.Meth.B 132, (1997), 418-424.

11. M.Kalitzova, S.Simov, R.Yankov, Ch.Angelov, G.Vitali, M.Rossi, C.Pizzuto, G.Zollo, J.Faure, L.Kilian, P.Bonhomme, M.Voelskow, Amorphization and crystallization in high-dose Zn⁺ - implanted silicon”, J.Appl.Phys., 81 (3), (1997), 1143-1149.

12. Ch.Angelov, J.Faure, M.Kalitzova, A.Djakov, “Atomic force microscopy investigation of Zn⁺-implanted Si at high doses”, ISCMP, Varna96, World Scientific, Singapore (1997), 361-364.

13. Ch.Angelov, J.Faure, M.Kalitzova, S.Simov, T.Tzvetkova and A.Djakov, “Effects of high dose Bi⁺ implantation in Si: An atomic force and transmission electron microscopy study”, - Vacuum, v.51, N 2, (1998), 285-288.

14.  B.Sealy, R.Gwilliam, J.Shannon, C. Jeynes, Ch.Angelov and T.Tzvetkova, “Surface electrical conductivity of Co⁺ - implanted a - SiC:H films”, - Vacuum, v.51, N 2, (1998), 281-284.

15. M.Kalitzova, S.Simov, R.Yankov, Ch.Angelov, G.Vitali, M.Rossi, C.Pizzuto, G.Zollo, J.Faure, L.Kilian, P.Bonhomme, Ion-Beam-Induced Crystallization and Amorphization in Zn⁺ - implanted Silicon”, Journal of Physical Studies, v.2, N^o 2, (1998), 1-8.

16. Ch.Angelov, A.Djakov, “High-dose phenomena in Si implanted with heavy ions (Pb and Bi)”, Proc. of Sec. YUNSC’98, Belgrade, Yugoslavia, p.579.

17. Ch.Angelov, J.Faure, M.Kalitzova, S.Simov and A.Djakov, “Te⁺ implantation in Silicon: Atomic force and Transmission electron microscopy studies”, ISCMP, Varna 98, World Scientific, Singapore (1999), p.417-420.

18. A.Toneva, E.Goranova, Ts.Marinova, V.Krastev, G.Beshkov and Ch.Angelov, “XPS investigation of iron silicide thin films“, ISCMP, Varna 98, World Scientific, Singapore (1999), p.554-557.

19. D.B.Dimitrov, J.Koprinarova, J.Pazov, Ch.Angelov, “Conductivity of micro-porous magnetron sputtered thin TiO₂ films”, Vacuum, 58, (2000). 344-350.

20. V.Daraktchieva, E.Goranova, M.Baleva, Ch.Angelov, “Ion beam synthesis of  b-FeSi₂, ”, Vacuum, 58, (2000). 415-419.

21. P.Vitanov, M.Delibasheva, M.Peneva, E.Goranova, Ch.Angelov, V.Dimov, “Structure and morphological studies of thin porous silicon layers”, ”, Vacuum, 58, (2000). 351-357.

22. Ch. Angelov, A Djakov, “TEM, AFM and RBS studies of  Pb⁺ implantation in Si (100), Proc. of YUNSC’2000, Belgrade, 439-444.

23. T.Tsvetkova, S.Balabanov, B.Amov, Ch.Angelov, J.Zuk, D.Maczka, G.J.Adriaensses and K.Iakoubovskii, “Modification of the electronic properties of a-Si_1-xC_x:H by Fe⁺ ion implantation”, 2000 MRS Fall Meeting, Boston, USA. 

24. Ch.Angelov, M.Baleva, V.Daraktchieva, E.Goranova, M.Surtchev, “Infrared vibrational spectra of b-FeSi₂ and Fe₂O₃ ISCMP2000, World Scientific, Singapore (2001), p.428.

25. Ch.Angelov, M.Baleva, E.Goranova, V.Daraktchieva, D.Karpuzov, M.Surtchev, “Optical

band gap of b-FeSi₂ phase” ISCMP2000, World Scientific, Singapore (2001), p.456.

26. Ch.Angelov, V.Mikli, M.Kalitzova, G.Beshkov, “Pb and Bi nanoclusters precipitation in high-dose implanted and RTA Si: SEM and X-ray analyses”, ISCMP2000, World Scientific, Singapore (2001), p.452.

27. Ch.Angelov, P.Groudev, V.Mikli, “Use of atomic-force microscopy for characterisation of silicon implanted with heavy ions at high doses”, ISCMP2000,World Scientific, Singapore (2001), p.460.

28. B.Sealy, R.Gwilliam, J.Shannon, C.Jeynes, T.Tsvetkova, Ch.Angelov, N.Tzenov, M.Tzolov, D.Dimova-Malinovska, “Formation of CoSi₂ in a-Si_1-x:H by high doses Co⁺ implantation”, ISCMP2000, World Scientific, Singapore (2001), p.476.

29. K.Velitchkova, K.Krezhov, S.Balabanov, Ch.Angelov, “Gamma irradiation effects on the d.c. voltage - current characteristics of carbon implanted polymers”, ISCMP2000, World Scientific, Singapore (2001), p.488.

30. M.Kalitzova, G.Zollo, R.Yankov, Ch.Angelov, S.Simov, C.Pizzuto, J.Faure, L.Kilian, P.Bonhomme, D.Manno, M. Voelskow, G.Vitali “Ion-Beam-Assisted Nanocrystal Formation in Silicon Implanted with High-Doses of Pb⁺ and Bi⁺ ions”, Jpn. J. Appl. Phys. v. 40 (2001), 5841-5849.

31. P.Bankov, M.Kalitzova, D.Karpuzov, G.Zollo, G.Vitali, C.Pizzuto, Ch.Angelov, J.Faure, L.Kilian, “Dose dependent dynamics of nanocluster precipitate distribution in silicon implanted with Te⁺ and Pb⁺ ions: computer simulation and TEM study”, Vacuum 69, 455-460, 2003.

32. L.Pavlov, Ch.Angelov, V.Mikli, A.Djakov, “Microstructural changes and optical properties of laser annealed bismuth-implanted silicon”, Vacuum 69, 119-124, 2003.

33. Ch. Angelov, A. Kinomura, A. Peeva, W. Skorupa, Y. Horino, and M.Takai, “Ion beam induced epitaxial crystallization of silicon implanted with heavy ions”, Nucl. Instr. and Meth. B 206 (2003) 907-911.

34. S. Kaschieva, S.N.Dmitriev, and Ch. Angelov, “Electron beam and g-irradiation of ion implanted MOS structures with different oxide thickness”, Nucl. Instr. and Meth. B 206 (2003) 452-456.

35. M.Baleva, E.Goranova, Ch.Angelov, G.Beshkov, “On the refractive index dispersions of ion beam synthesis b-FeSi₂ layers”, J. Mat. Sci. – Materials in Electronics, 14, 2003, 849-850 .

36. S. Ichihara, T. Nakagawa, M. Nitta, S. Abo, T. Lohner, C. Angelov, M. Takai, “Characterization of dopant profiles produced by ultrashallow As implantation and spike annealing using Medium Energy Ion Scattering (MEIS)”, Nucl. Instr. and Meth., B, 219-220 (2004) 584-588.

37. P. Vitanov, A. Harizanova, Ch. Angelov, I. Petrov, Z. Aleksieva, “Structure and optical properties of (Al₂O₃)_x(TiO)_1-x thin films prepared by a sol-gel processing”, Vacuum 76, 215-218, 2004.

38. M. Kalitzova, K. Gesheva, E. Vlakhov, Y. Marinov, D. Gogova, T. Ivanova, Ch. Angelov, N. Pashov, G. Zollo, G. Vitali “High frequency electromagnetic field processing of amorphous silicon layers containing nanoclusters produced by implantation of metal ions in Si(100) matrix”, Nucl. Instr. and Meth., B, 229, (2005) 65-72.

39. Ch. Angelov, T. Lohner, M. Takai, A. Kinomura, St. Georgiev, “Structural study of the beam crystallized Si samples by using medium energy ion scattering”, Jounal of Optoelectronics and Advanced Materials, v.7, 457-460, 2005.

40. Ch. Angelov, Bl. Amov, A. Kinomura, E. Goranova, G. Beshkov, M. Takai, “Depth profiles and crystallization behaviour of Mg ions implanted into Si” Journal of Optoelectronics and Advanced Materials, v.7, 465-468, 2005.

41. Ch. Angelov, V. Mikli, Bl. Amov, E. Goranova, “AFM and SEM investigations of ion beam synthesized Mg₂Si precipitates in Si substrates” Journal of Optoelectronics and Advanced Materials, v.7, 369-372, 2005.

42. S. Terzieva, A. Stoyanova-Ivanova, K. Zalamova, V. Mikli, Ch. Angelov, V. Kovachev, “Morphology of Y₁Ba₂Cu₃O_z and Y_0.7Ca_0.3Ba₂Cu₃O_z bulk samples depending on Ca-substitution” Journal of Optoelectronics and Advanced Materials, v.7, 477-480, 2005.

43. A. Stoyanova-Ivanova, S. Terzieva, A. Zahariev, H. Ignatov, K. Zalamova, Ch. Angelov, “ The influence of Pr-Ca substitution over phase formation, microstructure and oxygen content in YBCO bulk sample” Journal of Optoelectronics and Advanced Materials, v.7, 431-434, 2005.

44. K. G. Grigorov, I. Nedkov, G. Beshkov, Ch. Angelov, H. S. Maciel, I. C. Oliveira, W. Matz, R. Groetzchel, “AIN films obtained by broad energy nitrogen ion implantation and rapid thermal annealing process”, Journal of Optoelectronics and Advanced Materials, v.7, 381-384, 2005.

45. A. Atanassov, G. Zlateva, M. Baleva, E. Goranova , B. Amov, C. Angelov , V. Mikli, “Raman Scattering Characterization of Ion-Beam Synthesized Mg₂Si, 1 Influence of the Technological Conditions on the formation of the Mg₂Si in (100) Si Matrix”, Plasma Process. Polym., 2006, 3, 219-223.

46. S. Kaschieva, C. Angelov, S.N. Dmitriev, G. Tsutsumanova, “RBS investigation of ion implanted Si-SiO₂ structures irradiated with 20 MeV electrons”, Plasma Process. Polym., 2006, 3, 233-236.

47. Ch. Angelov, St. Georgiev, B. Amov, T. Lohner, V. Mikli, “Solid phase and ion beam epitaxial crystallization of Si implanted with Zn and Pb ions”, Journal of Optoelectronics and Advanced Materials, v.9, № 2, 311-314, 2007.

48. Ch. Angelov, St. Georgiev, B. Amov, E. Goranova, V. Mikli, I. Dézsi, E. Kótai, ”Study of the ion implanted Fe depth distribution in Si after pulsed ion beam treatment”, Journal of Optoelectronics and Advanced Materials, v.9, № 2, 307-310, 2007.

49. S. Terzieva, A Stoyanova-Ivanova, V. Mikli, A. Zahariev, Ch. Angelov, Y. Dimitriev and V. Kovachev, “The influence of the partial Ca substitution on the microstructure of YBCO tapes”, Journal of Optoelectronics and Advanced Materials, v.9, № 2, 453-455, 2007.

50. A.Stoyanova-Ivanova, S.Terzieva, A.Staneva, V.Mikli, Ch.Angelov, V.Kovachev,

Journal of the University of Chemical Technology and Metallurgy, 42, 4, 423-426.

“The influence of the partial Ca-Pr substitution on the microstructure of Y_0.96Pr_0.04Ba₂Cu₃O_z

and Y_0.71Pr_0.04Ca_0.25Ba₂Cu₃O_z superconducting ceramics”, 2007

51. T. Lohner, C. Angelov, V. Mikli, “Comparative ellipsometric and ion beam analytical studies on ion beam crystallized silicon implanted with Zn and Pb ions”, Thin Solid Films 516 (22), pp. 8009-8012, 2008

52. Ch. Angelov, Bl. Amov, V. Mikli, R. Traksmaa, “Structural investigations of ion beam synthesized β-FeSi2”, Journal of Optoelectronics and Advanced Materials, v.11, 1490-1493, 2009

53. S. Kaschieva, Ch. Angelov, S. N. Dmitrev, “MeV electron irradiation of O+ or P+ implanted Si-SiO2 structures”, Journal of Optoelectronics and Advanced Materials, v.11, 1502-1504, 2009

54. A. Staneva, A. Stoyanova-Ivanova, S. Terzieva, J. Shoumarova, K. Grigorov, A. Zaleski, V. Mikli, Ch. Angelov, Y. Dimitriev,  “BSCCO ceramics doped with ferromagnetic manganite phases”, Journal of Optoelectronics and Advanced Materials, v.11, 1541-1544, 2009

55. J.Stamenov, Ch. Angelov, I. Angelov, T. Arsov, N.Archangelova, A.Boyukliiski, A.Damianova, L.Drenska, K.Georgiev, I. Kalapov, A.Nishev, N.Nikolova, I.Penev,  A.Tchorbadjieff, B.Vachev, B. Boyuklieva, A. Boyadjieva, I. Pavchinska, “Basic Environmental Observatory (BEO) at Moussala Peak – High Mountain Station for Complex Monitoring Studies, Journal of Balkan Ecology, v. 13, N 2, 2010.

56. I.Penev, J.Stamenov, M.Drenska, , H. Angelov, S.Georgiev, I.Kalapov, N.Uzunov, N.Archangelova, H.Hristov,  “Origin and behavior of ⁷Be in the air masses in the vicinity of Moussala Peak”, Comptes rendus de l’Academie bulgare des Sciences, tome 63, № 9, pp. 1273-1278, 2010

57. I.Penev, J.Stamenov, M.Drenska, I.Kalapov, H. Angelov, S.Georgiev, N.Uzunov, H.Hristov, N.Archangelova, “Natural ⁷Be  Radioactivity of Aerosols at Vicinity of Moussala  Peak, Bulgaria”, Journal of Balkan Ecology, vol. 14, № 1, 2011

58. Ch. Angelov, I. Angelov, T. Arsov, N.Archangelova, A.Boyukliiski, A.Damianova, L.Drenska, K.Georgiev, I. Kalapov, A.Nishev, N.Nikolova, I.Penev, I.Sivriev, J.Stamenov, A.Tchorbadjieff, S.Todorov, B.Vachev, “BEO Moussala – a new facility for complex environmental studies”, Int. Conf.  “Identifying the Research Basis for Sustainable Development of the Mountain Regions in Southeastern Europe”, Springer, p. 123-139, 2011

59. I.Penev, J.Stamenov, M.Drenska, I.Kalapov, Hr. Angelov, S.Georgiev, I. Kalapov, N.Archangelova, H.Hristov, N.Uzunov, “Monitoring and Analysis of ⁷Be Quantity in the Air Aerosols in the Vicinity of Peak Moussala”,  Int. Sci.Conf. UNITECH, v. III, p. 541, 18-19.11.2011, Gabrovo, Bulgaria.

60. I.Penev, St.Georgiev, , Hr. Angelov, I.Kalapov,  N.Archangelova, D. Vasileva, H.Hristov, N.Uzunov, “Trans-Continental Airborne Transfer of Radioactive Isotopes from Fukushima Nuclear Power Plant Failure”, Int. Sci.Conf. UNITECH, v. III, p. 552, 18-19.11.2011, Gabrovo, Bulgaria.

61. И. Пенев, Хр. Ангелов, Ст. Георгиев, А. Чорбаджиев, ”Радиационният фон в района на вр. Мусала, БЕО Мусала, след инцидента „Фукушима”, Доклади на БЯД, том 16, № 2, стр. 15-19, 2011.

62. Müller T., Henzing J.S., De Leeuw G., Wiedensohler A., Alastuey A., Angelov H., Bizjak M., Collaud Coen M., Engström J.E., Gruening C., Hillamo R., Hoffer A., Imre K., Ivanow P., Jennings G., Sun J.Y., Kalivitis N., Karlsson H., Komppula M., Laj P., Li S.-M., Lunder C., Marinoni A., Martins Dos Santos S., Moerman M., Nowak A., Ogren J.A., Petzold A., Pichon J.M., Rodriquez S., Sharma S., Sheridan P.J., Teinilä K., Tuch T., Viana M., Virkkula A., Weingartner E., Wilhelm R., Wang Y.Q, "Characterization and intercomparison of aerosol absorption photometers: Result of two intercomparison workshops", Atmospheric Measurement Techniques, 4 (2) , pp. 245-268, 2011

63. S. Kaschieva, A. Gushterov, Ch. Angelov, S.N. Dmitriev, “Formation of Si nanocrystals in ion implanted Si-SiO2 structures by MeV electron irradiation”, Journal of Physics: Conference Series 356, 012005, 2012

64. A. Tchorbadjieff, I. Angelov, Ch. Angelov, J. Stamenov, N. Nikolova, T. Arsov, I. Kalapov, A.Boyadjieva,"Detection of Solar particle events in March 2012 at BEO Moussala". Bulgarian Astronomical Journal Volume 18-2, 2012

65. Assen Tchorbadjieff, Ch. Angelov, I. Angelov, T. Arsov, I. Kalapov, N. Nikolova, A. Boyadjieva, "Detection of Coronal Mass Ejections (CMEs) in the period of March-May 2012 at Moussala peak", Comptes rendus de l’Academie bulgare des Sciences, vol 66, №5, pp. 659-666, 2013.

66. I. Penev, Hr. Angelov, “Monitoring of aerosol radioactivity at BEO Moussala – main results and conclusions for 7 years”, Доклади на БЯД, том 18, бр. 1, стр. 57, 2013

67. Christo Angelov, Nina Nikolova, Ivo Kalapov, Todor Arsov, Assen Tchorbadjieff, Aneta Boyadjieva, Stefan Tsakovski, Petra Přibylová, Petr Kukučka, Jana Boruvková, Jana Klánová, “High-Mountain Monitoring of Persistent Organic Pollutants at the Basic Environmental Observatory Moussala”, Comptes rendus de l’Acade'mie bulgare des Sciences, Vol 67, No8, pp.1129-1136, 2014.

68. S. Kaschieva, A. Gushterov, Ch. Angelov, S.N. Dmitriev, “Effect of MeV electron irradiation on Si-SiO2 structures”, Journal of Physics: Conference Series 514, 012039, 2014

69. I. Penev, S. Georgiev, Hr. Angelov, T. Arsov, “Spectroscopic monitoring of gamma-rays of Earth and space origin in the 150-6400 keV range at Moussala BEO”, Comptes rendus de l’Acade'mie bulgare des Sciences, Vol 68, No 4, pp.449 454, 2015.

70. Assen Tchorbadjieff, Christo Angelov, Todor Arsov, Nina Nikolova, Ivo Kalapov, Aneta Boyadjieva, “Sahara Dust Events over South-western Bulgaria During the Late Spring of 2013”, Comptes rendus de l’Acade'mie bulgare des Sciences, Vol 68, No10, pp.1229-1234, 2015

71. Ch. Angelov, N. Nikolova, T. Arsov, I. Kalapov, A. Tchorbadjiev, I. Penev, I. Angelov, “BEO Moussala: Complex for Environmental Studies”, “Sustainable development in Mountain regions, Southeastern Europe”, Springer, Chapter 24, pp. 349-365, 2016

72. Christo Angelov, Todor Arsov, Ilia Penev, Nina Nikolova, Ivo Kalapov, Stefan Georgiev, “Aerosol and gamma background measurements at Basic Environmental Observatory Moussala”, Acta Scientifica Naturalis, vol. 3, No 1, pp. 33-38, 2016

73. S. Kaschieva, Ch. Angelov, S.N. Dmitriev, “MeV electron irradiation of Si-SiO2 structures with magnetron sputtered oxide”, Journal of Physics: Conference Series, Volume 700, Number 1, 2016, ISSN: 1742-6588

74. N. Nikolova, Ch. Angelov, T. Arsov, Sp. Pilec, N. Nikolova, “Volcanic eruptions in South Europe and the change of carbon dioxide concentration – case study: “Moussala” Basic Environmental Observatory, Forum geographic, v. XV(2), pp. 120-125, 2016

75. I. Penev, Ch. Angelov, Todor Arsov, Stefan Georgiev, Nikolay Uzunov, “Climate change impact on 7Be activity seasonal variations in air aerosols near Moussala BEO”, Comptes rendus de l’Acade'mie bulgare des Sciences, Vol 70, No 9, pp. 1215- 1218, ISSN 1310-1331, IF: 0,251, 2017

76. Lauren Schmeisser, Elisabeth Andrews, John A. Ogren, Patrick Sheridan, Anne Jefferson, Sangeeta Sharma, Jeong Eun Kim, James P. Sherman, Mar Sorribas, Ivo Kalapov, Todor Arsov, Christo Angelov, Olga L. Mayol-Bracero, Casper Labuschagne, Sang-Woo Kim, András Hoffer, Neng-Huei Lin, Hao-Ping Chia, Michael Bergin, Junying Sun, Peng Liu, Hao Wu, “Classifying aerosol type using in situ surface spectral aerosol optical properties”, Atmos. Chem. Phys., 17, 12097-12120, IF: 5.72, 2017

77. Ilia Penev, Christo Angelov, Stefan Georgiev, Nina Arhangelova, “Rn intensity variation in the vicinity of Moussala BEO, Moussala peak”, Доклади на БЯД, том 22, бр. 1, стр. 55-57, 2017, ISSN 1310-8727

78. N. Tyutyundzhiev, K. Lovchinov, Hr. Angelov, M. Petrov, Hr. Nichev, “Hybrid energy microsystems enhanced by solar PV energy”, III International scientific congress Proceedings, 19-22.06.2017, Varna, p. 136-140, ISSN: 2535-0285, 2017

79. Emilia L. Nikolova, Ralitsa D. Valcheva & Christo V. Angelov, „Essential and toxic element concentrations in medical herbs from Rila and Pirin (Bulgaria) measured using Energy Dispersive X-ray Fluorescence (EDXRF) Analysis“, Acta zool. bulg., Suppl. 11, 163-167, 2018

80. N.Tyutyundzhiev, Ch.Angelov, K.Lovchinov, Hr.Nitchev, M.Petrov, T.Arsov, “Modeling of natural UV irradiation and comparative UV measurements at BEO „Moussala“ station(BG)”, IOP Conf. Series: Journal of Physics: Conf. Series 992 (2018) 012022

81. S. Kaschieva, Ch. Angelov and S.N. Dmitriev, “High-dose MeV electron irradiation of Si-SiO2 structures implanted with high doses Si+”, IOP Conf. Series: Journal of Physics: Conf. Series 992 (2018) 012059

82. I. Penev, H. Angelov, T. Arsov, St. Georgiev, N. Uzunov, “106Ru aerosol activity observation above southeast Europe in October 2017”, Comptes rendus de l’Acade'mie bulgare des Sciences, Vol 71, No 5, pp. 613- 618, ISSN 1310-1331, IF: 0,251, 2018

83. Marco Pandolfi, Lucas Alados-Arboledas, Andrés Alastuey, Marcos Andrade, Christo Angelov, Begoña Artiñano, John Backman, Urs Baltensperger, Paolo Bonasoni, Nicolas Bukowiecki, Martine Collaud Coen, Sébastien Conil, Esther Coz, Vincent Crenn, Vadimas Dudoitis, Marina Ealo, Kostas Eleftheriadis, Olivier Favez, Prodromos Fetfatzis, Markus Fiebig, Harald Flentje, Patrick Ginot, Martin Gyse, Bas Henzing, Andras Hoffer, Adela Holubova Smejkalova, Ivo Kalapov, Nikos Kalivitis, Giorgos Kouvarakis, Adam Kristensson, Markku Kulmala, Heikki Lihavainen, Chris Lunder, Krista Luoma, Hassan Lyamani, Angela Marinoni, Nikos Mihalopoulos, Marcel Moerman, José Nicolas, Colin O’Dowd, Tuukka Petäjä, Jean-Eudes Petit, Jean Marc Pichon, Nina Prokopciuk, Jean-Philippe Putaud, Sergio Rodríguez, Jean Sciare, Karine Sellegri, Erik Swietlicki, Gloria Titos, Thomas Tuch, Peter Tunved, Vidmantas Ulevicius, Aditya Vaishya, Milan Vana, Aki Virkkula, Stergios Vratolis, ErnestWeingartner, Alfred Wiedensohler and Paolo Laj, “A European aerosol phenomenology – 6: scattering properties of atmospheric aerosol particles from 28 ACTRIS sites”, Atmos. Chem. Phys., 18, 7877–7911, IF: 5.72, 2018

Published Texts Of Talks And Lectures On Conferences

International:

1. A. Antonov, A. Damianova, A. Mishev, A. Nishev, B. Damianov, B. Vachev , D. Belokapov, E. Hristova, Ch. Angelov, I. Angelov, I. Kalapov, I. Kirov, I. Penev, I. Sivriev, J. Stamenov, K. Georgiev, L. Branekov, M. Drenska, M. Gelev, N. Arhangelova, N. Nikolova, N. Uzunov, P. Ivanov, S. Todorov, Tz. Valova, “BEO Moussala a new facility for space weather and environmental studies”, Proc. of International Cosmic Ray Workshop "Aragats 2007" 8-13 September 2007. 138-146

2. Ch. Angelov, I. Angelov, A. Antonov, L. Branekov, D. Belokapov, A. Damianova, K. Georgiev, M. Gelev, E. Hristova, P. Ivanov, I. Kalapov, I. Kirov, A. Mishev, A. Nishev, N. Nikolova, I. Sivriev, J. Stamenov, S. Todorov, B. Vachev, "BEO Moussala - a site for integrated environmental studies-first results", Proc. of Global change, environment, sustainable development of the society and high mountain observatories network Conference 21-25 March 2007 Gyulechitsa Bulgaria 9-23

3. I.Penev, J.Stamenov, M.Drenska, I.Kalapov, Hr. Angelov, S.Georgiev, I. Kalapov, N.Archangelova, H.Hristov, N.Uzunov, “ Monitoring and Analysis of 7Be Quantity in the Air Aerosols in the Vicinity of Peak Moussala”, Int. Sci.Conf. UNITECH, v. III, p. 541, 18-19.11.2011, Gabrovo, Bulgaria

4. I.Penev, St.Georgiev, , Hr. Angelov, I.Kalapov, N.Archangelova, D. Vasileva, H.Hristov, N.Uzunov, “Trans-Continental Airborne Transfer of Radioactive Isotopes from Fukushima Nuclear Power Plant Failure”, Int. Sci.Conf. UNITECH, v. III, p. 552, 18-19.11.2011, Gabrovo, Bulgaria

5. Ch. Angelov, I. Angelov, T. Arsov, N.Archangelova, A.Boyukliiski, A.Damianova, L.Drenska, K.Georgiev, I. Kalapov, A.Nishev, N.Nikolova, I.Penev, I.Sivriev, J.Stamenov, A.Tchorbadjieff, S.Todorov, B.Vachev, “BEO MOUSSALA – A NEW FACILITY FOR COMPLEX ENVIRONMENTAL STUDIES”, INT. CONF. “Identifying the Research Basis for Sustainable Development of the Mountain Regions in Southeastern Europe”, Springer, p. 123-139, 2011

6. I. Penev, St. Georguiev, Hr. Angelov, I. Kalapov, N. Arhangelova, Hr. Hristov, N. Uzunov, A. Damianova, “Trans-Continental Transfer of Radioactive Isotopes from Fukushima NPP Failure”, Proc. Of Int. Conf. “Ecology – interdisciplinary science and practice”, Sofia, 25-26 October 2012, 339-342 (ISSN 1311-0527)

7. Nina Nikolova, Christo Angelov, Assen Tchorbadjieff, Todor Arsov, Ilia Penev, Ivo Kalapov, “High-Mountain Air Monitoring at the Basic Environmental Observatory Moussala”, SUSTAINABLE MOUNTAIN REGIONS: MAKE THEM WORK, pp. 60-67 INTERNATIONAL SCIENTIFIC CONFERENCE PROCEEDINGS, 14-16 May 2015, Borovets, Bulgaria, ISBN: 978-954-411-220-2

8. Ilia Penev, Christo Angelov, Stefan Georgiev, Nina Arhangelova, “Variations of the intensity of 222Rn in the vicinity of BEO-Moussala”, ”, Int. Sci.Conf. UNITECH, v. IV, p. 359-361, 18-19.11.2016, Gabrovo, Bulgaria, ISSN 1313-230X

Bulgarian:

1. ”Capacity of cosmic ray environment connection studies at BEO Moussala”, A. Mishev, J. Stamenov and H. Angelov, Proc. of ECOLOGY NANOTECHNOLOGY SAFETY SENS'2006. 14-16 June 2006 Sozopol Bulgaria

2. I.Penev, M.Drenska, Ch.Angelov, St.Georgiev, I. Kalapov, N. Uzunov, N. Arhangelova, H. Hristov, “Airborne Trans-Continental Transfer of Radioactive Isotopes from Fukushima”, Гьолечица, 17 – 19.06.2011, България

3. Christo Angelov, Nina Nikolova , Ivo Kalapov, Todor Arsov, Assen Tchorbadjieff, Aneta Boyadjieva, ”BEO Moussala station (2925m a.s.l.) – a High Mountain point for POPs, aerosols and greenhouse gas measurements”, Резюмета от II национален конгрес по физически науки, стр. 290, 25-29.09.2013 г.

4. Assen Tchorbadjieff, Jordan Stamenov, Ivo Angelov, Todor Arsov, Ivo Kalapov, Christo Angelov, Nina Nikolova, Aneta Boyadjieva, “Moussala station (2925 m a.s.l.) – a high mountain point for cosmic ray measurements”, Резюмета от II национален конгрес по физически науки, стр. 294, 25-29.09.2013 г.