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Author: c o'brien
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Displaying records 1 to 10 of 17 records.
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1. 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

2. Comparison of Exposure Standards in the Mammography X-Ray Region
Published: 1/1/1997
Authors: J G Coletti, D W Pearson, Larry A DeWerd, C Michelle O'Brien, P J. Lamperti
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=103033

3. Comparison of national air kerma standards for ISO 4037 narrow spectrum series in the range 30 kV to 300 kV.
Published: 2/1/2009
Authors: C Michelle O'Brien, L. Buermann, P. Butler, I. Csete, F. Gabris, A. Hakanen, J. -. Lee, M. Palmer, N. Saito, W. deViries
Abstract: For the first time results are presented of an indirect comparison of ten national standards for air kerma for ten radiation qualities of the ISO 4037 narrow spectrum series in the range of 30 kV to 300 kV. Nine of the ten participants maintain prim ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=900915

4. Comparison of the NIST BIPM Air-Kerma Standards for Measurements in the Low-Energy X-ray Range
Published: 1/1/1999
Authors: D T Burns, P J. Lamperti, C Michelle O'Brien
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=103460

5. Comparison of the NIST and BIPM Air-Kerma Standards for Measurements in the Low-Energy X-Ray Range
Series: Journal of Research (NIST JRES)
Published: 2/1/1999
Authors: D T Burns, P J. Lamperti, C Michelle O'Brien
Abstract: A direct comparison was made between the air-kerma standards used for the measurement of low-energy x rays at the National Institute of Standards and Technology (NIST) and at the Bureau International des Poids et Mesures (BIPM). The comparison was ca ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831100

6. Comparison of the NIST and BIPM Standards for Air Kerma in Medium-Energy X-Rays
Series: Journal of Research (NIST JRES)
Published: 10/1/2006
Authors: D T Burns, C Michelle O'Brien
Abstract: A comparison has been made of the air-kerma standards for medium-energy x-rays of the National Institute of Standards and Technology (NIST) and the Bureau International des Poids et Mesures (BIPM). The comparison involved a series of measurements at ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841171

7. Comparison of the NIST and NPL Air Kerma Standards Used for X-ray Measurements Between 10 kV and 80 kV
Published: 1/1/2000
Authors: C Michelle O'Brien, P J. Lamperti, T T Williams, Tillman H. Sander
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=103602

8. Comparison of the NIST and NPL Air Kerma Standards Used for X-ray Measurements Between 10 kV and 80 kV
Published: 1/1/2000
Authors: C Michelle O'Brien, P J. Lamperti, T T Williams, Tillman H. Sander
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=103603

9. Comparison of the NIST and NPL Air Kerma Standards Used for X-ray Measurements Between 10 kV and 80 kV
Published: 1/1/2000
Authors: C Michelle O'Brien, P J. Lamperti, T T Williams, Tillman H. Sander
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=103674

10. Comparison of the NIST and PTB Standards for Air Kerma and Low-Energy X-rays
Series: Journal of Research (NIST JRES)
Published: 12/31/2009
Authors: C Michelle O'Brien, L. Buermann
Abstract: A comparison has been made of the air-kerma standards for low-energy x-rays at the National Institute of Standards and Technology (NIST) and the Physikalisch-Technische Bundesanstalt (PTB). The comparison involved a series of measurements at the PT ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903376



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