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You searched on: Author: ronaldo minniti Sorted by: title

Displaying records 1 to 10 of 30 records.
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1. 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 ...

2. CT head-scan dosimetry in an anthropomorphic phantom and associated measurement of ACR accreditation-phantom imaging metrics under clinically representative scan conditions
Published: 7/24/2013
Authors: Ronaldo Minniti, Claudia Brunner, Stanley H. Stern, Marie I. Parry, Kish Chakrabarti
Abstract: The purpose of this work was to measure radiation absorbed dose and its distribution in an anthropomorphic head phantom under clinically representative scan conditions in three widely-used computed tomography (CT) scanners, and to relate those dose v ...

3. Calibration of a 137Cs Gamma-ray Beam Irradiator Using Large Size Chambers
Published: 1/1/2007
Authors: Ronaldo Minniti, Stephen Michael Seltzer

4. 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 ...

5. 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 ...

6. 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 ...

7. Comparison of the standards for air kerma of the NIST and the BIPM for 60Co gamma radiation
Published: 7/31/2013
Authors: Ronaldo Minniti, C Kessler, P J Allisy-Roberts
Abstract: An indirect comparison of the standards for air kerma of the National Institute of Standards and Technology (NIST), USA, and of the Bureau International des Poids et Mesures (BIPM) was carried out in the 60Co radiation beam of the BIPM in September 2 ...

8. Comparisons of the radiation protection standards for air kerma of the NIST and the BIPM for Co60 and Cs137 gamma radiation
Published: 8/1/2014
Authors: Ronaldo Minniti, C. Kessler, P J Allisy-Roberts
Abstract: An indirect comparison of the standards for air kerma of the National Institute of Standards and Technology (NIST), USA, and of the Bureau International des Poids et Mesures (BIPM) was carried out in the Co60 and Cs137 radiation protection-level beam ...

9. Effect of Neutron Irradiation on Dosimetric Properties of the TLD-600H (Lif6:Mg,Cu,P)
Published: 11/1/2011
Authors: Alexander A Romanyukha, Ronaldo Minniti, M. Moscovitch, Alan K Thompson, F. Trompier, Ronald Colle, A Sucheta, S. P. Voss, L. A. Benevides
Abstract: Ideally, dosimeters should measure the dose without their dosimetric properties being affected by the radiation type being measured. Industry-wide occupational radiation workers that can be potentially exposed to neutron radiation fields are routine ...

10. Exposure of Self-Assembled Monolayers to Highly Charged Ions and Metastable Atoms
Published: 1/1/1999
Authors: L P. Ratliff, Ronaldo Minniti, A Bard, E W. Bell, John D Gillaspy, D C Parks, A J Black, G M Whitesides

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  • SP 250-XX: Calibration Services
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