Ralitsa Dimitrova Valcheva

Scientist

 

Personal Data

Occupations: Гл. асистент
Office Address: Тематична група по Рентгено-флуоресцентен анализ
Институт за ядрени изследвания и ядрена енергетика
Цариградско шосе 72
1784 София, България
Office Phone: (+359) 2 979-5595
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Profesional Data

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Scientific Works

  1. E. Nikolova, R.Valcheva, K. Stoev, X-Ray Fit - Windows based Program for Energy Dispersive X-Ray - Fluorescent Analysis The XX-th Anniversary International Symposium on Nuclear Electronics & Computing, Bulgaria, Varna, 12-18 September, 2005.
  2. X-Ray Fit - Windows based Program for Energy Dispersive X-Ray Fluorescent Analysis, European Conference on X-Ray Spectrometry EXRS-2006, At Paris, France 19-23.06.2006, Volume: 1, p.46
  3. Valcheva R., Gigov K., Nikolova E., Stoev K., “Software for Total Reflection X-Ray – Fluorescence Analysis and Equipment Test “,Международна конференция NEC’ 2009 07-14 септември 2009, Варна, България.
  4. E.Nikolova, R. Valcheva, “X-ray Fluorescent Analysis of marine sediments from Port Burgas and Burgas Bay Aquatory”, Journal of Bulgarian Nuclear Society, Vol. 15,2, 2011, p. 30-33, ISSN 1310-8727
  5. B. Veleva, E. Hristova, E. Nikolova, M. Kolarova, R. Valcheva, PM10 concentration and elemental composition by EDXRF techniques in Sofia, 22 Intern. Symp. Ecology & Safety, 7-11 June 2013, Sunny Beach. J. Intern. Sci. Publ.: Ecology & Safety 7 Part 1 (2013) 83-96. ISSN1313-2563
  6. Б. Велева, Е. Христова, Е. Николова, М. Коларова, Р. Вълчева, Характеризиране на елементния състав на финни прахови частици (PM10) в градски условия с EDXRF методи, Втори национален конгрес по физическите науки, София, 25-29 Септември 2013, Постер
  7. . B. Veleva, E. Hristova, E. Nikolova, M. Kolarova, R. Valcheva. Еlemental composition of air particulate (PM10) in Sofia by EDXRF techniques, Journal of Chemical Technology and Metallurgy, 49, 2, 2014, 163-169
  8. . B. Veleva, E. Hristova, E. Nikolova,M. Kolarova, R. Valcheva. Seasonal variation of PM10 elemental composition in urban environment. 23 Intern. Symp. Ecology & Safety, June 2014, J. Intern. Sci. Publ.: Ecology & Safety vol.8, 265-275. ISSN 1314-7234 (online)
  9. B. Veleva, E. Hristova1, E. Nikolova, M. Kolarova, R. Valcheva, Statistical evaluation of XRF elemental composition Data- a step to source identification of PM10 pollution in Sofia, Proc., 16th International Conference on Harmonisation within Atmospheric Dispersion Modelling for Regulatory Purposes, 8-11 September 2014, Varna, Bulgaria
  10. E. Nikolova, R. Valcheva, B.Veleva, L. Samek, N. Civici, I. Beslic , E. Hristova, M.Kolarova. Calibration procedures for determination of elemental concentration in air particulate matter, using EDXRF Techniques. Journal of Bulgarian Nuclear Society, (2014), Vol. 19, 1, 2014, p. 44-49, ISSN 1310-8727
  11. B. Veleva, E. Hristova, E. Nikolova, M. Kolarova, R. Valcheva. Experimental study on elemental composition of PM10 in Sofia, 2012-2014, Nautical & Environmental studies, Volume V, Number 2. 1-6, 2015.

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