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Author: ronaldo minniti

Displaying records 11 to 20 of 28 records.
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11. Comparison of Air Kerma and Absorbed Dose to Water Measurements of Co-60 Radiation Beams in Radiotherapy
Published: 4/30/2010
Authors: Ronaldo Minniti, I. Csete, A.G. Leiton, V. Sochor, A. Lapenas, J.-E Grindborg, I Jokelainen, H. Bjerke, J. Dobrovodsky, A. Megzifene, H.J. Costas, R. Ivanov, B. Vekic, J. Kokocinski, H.J. Cardoso, L. Buermann, W. Tiefenboeck, G. Stucki, E. van Dijk , M P Toni, J.P. McCaffrey,, C.N.M. da Silva, I Kharitonov, D. Webb, M Saravi, F. Delaunay
Abstract: The results of the 25 participants of the EUROMET.RI(I)-K1 and EUROMET.RI(I)-K4 key comparisons are reported to support their relevant CMC claims being published or going to be published by the participant laboratories. The measured quantities were ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902852

12. Validation Testing of ANSI/IEEE N42.49 Standard Requirements for Personal Emergency Radiation Detectors
Published: 4/30/2010
Authors: Leticia S Pibida, Ronaldo Minniti, C Michelle O'Brien
Abstract: Various radiation detectors including thirteen electronic Personal Emergency Radiation Detectors (PERDs), radiochromic film cards and thermoluminescent dosimeters (TLDs) were used to validate a subset of the radiological test requirements listed in t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903055

13. Comparison between the NIST and the KEBS for the Determination of Air kerma Calibration Coefficients for Narrow X-ray Spectra and Cs-137 Gamma-Ray Beams
Series: Journal of Research (NIST JRES)
Published: 2/26/2010
Authors: C Michelle O'Brien, Ronaldo Minniti, Stanslaus Masinza
Abstract: Air kerma calibration coefficients for a reference class ionization chamber from narrow x-ray spectra and cesium 137 gamma ray beams were compared between the National Institute of Standards and Technology (NIST) and the Kenya Bureau of Standards (KE ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903106

14. Characteristics of a new polymer gel for high-ionization density dosimetry using a micro optical CT scanner
Published: 12/1/2009
Authors: Guerda Massillon, Ronaldo Minniti, Christopher Graham Soares, M.J. Maryanski, S Robertson
Abstract: In this work, the properties of the new BANG gel, specifically made for high-ionization density dosimetry, were investigated. The measurements were performed at NIST using a small calibrated 60Co gamma field of 1 cm x 1 cm, and a 1 cm active diameter ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842576

15. Treatment of Uncertainties in Radiation Dosimetry
Published: 8/18/2009
Authors: Michael G Mitch, Larry DeWerd, Ronaldo Minniti, J Williamson
Abstract: When one perform a physical measurement or a Monte Carlo simulation and obtains a numerical result, the following questions may be asked. How accurate is the result? Is the measurement or simulation method of high quality? Can the result be meaning ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901333

16. Use of BANG3-Pro-1 gel Dosimetry to Measure the 3D Dose Distribution of a Sr90/Y90 Intravascular Brachytherapy Seed.
Published: 8/18/2009
Authors: Guerda Massillon, Ronaldo Minniti, Michael G Mitch, M.J. Maryanski, Christopher Graham Soares
Abstract: Absorbed dose distributions in 3D imparted by a single Novoste 5F 90Sr/90Y beta particle source of the type formerly used for intravascular brachytherapy were investigated. An innovative dosimetry medium known as BANG3-Pro-1 gel was used as a dosimet ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842612

17. Technical Aspects of the Dissemination of the Air-Kerma Standard from Cs137 Gamma-Ray Beams in the United States
Published: 10/20/2008
Author: Ronaldo Minniti
Abstract: The national standard for air kerma from gamma-ray beams is maintained in the US by the National Institute of Standards and Technology (NIST), the primary standard dosimetry laboratory in the US. The standard is disseminated throughout the US by a w ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842551

18. Calibration of a 137Cs Gamma-ray Beam Irradiator Using Large Size Chambers
Published: 1/1/2007
Authors: Ronaldo Minniti, Stephen Michael Seltzer
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101008

19. Absorbed Dose to Water Calibration of Ionization Chambers in a ^u60^Co Gamma-Ray Beam
Series: Special Publication (NIST SP)
Report Number: 250-74
Published: 9/1/2006
Authors: Ronaldo Minniti, J Shobe, Stephen Michael Seltzer, Huaiyu H Chen-Mayer, S R Domen
Abstract: Absorbed-dose-to-water calibrations are important to the medical community to facilitate the accurate determination of doses delivered to tumors during external-beam cancer therapy. The first version of this document offered an absorbed-dose-to-water ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841189

20. Technical Aspects of the Naval Dosimetry Center Quality Assurance Program
Published: 1/1/2006
Authors: John T St, J Cassada, P K Blake, W W Wallace, Ronaldo Minniti
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=103362



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