Search Results - "Schrewe, U.J."

Aircrew Exposure from Cosmic Radiation on Commercial Airline Routes by Lewis, B.J., McCall, M.J., Green, A.R., Bennett, L.G.I., Pierre, M., Schrewe, U.J., O'Brien, K., Felsberger, E.

“…As a result of the recent recommendations of the ICRP 60, and in anticipation of possible regulation on occupational exposure of Canadian-based aircrew, an…”
Get full text

Induction of DNA double-strand breaks in mammalian cells and yeast by Frankenberg, D., Brede, H.J., Schrewe, U.J., Steinmetz, Ch, Frankenberg-Schwager, M., Kasten, G., Pralle, E.

“…Induction of DNA double-strand breaks (dsb) and their distribution are dependent on the energy deposition pattern within the cell nucleus (physical structure)…”
Get full text

Spectrometry using the PTB neutron multisphere spectrometer (NEMUS) at flight altitudes and at ground level by Wiegel, B, Alevra, A.V, Matzke, M, Schrewe, U.J, Wittstock, J

“…Bonner sphere measurements are presented for flights at altitudes of up to 12 km and geomagnetic latitudes between 26°N and 86°N and compared with results…”
Get full text

A consistent set of neutron kerma coefficients from thermal to 150 MeV for biologically important materials by Chadwick, M. B., Barschall, H. H., Caswell, R. S., DeLuca, P. M., Hale, G. M., Jones, D. T. L., MacFarlane, R. E., Meulders, J. P., Schuhmacher, H., Schrewe, U. J., Wambersie, A., Young, P. G.

“…Neutron cross sections for nonelastic and elastic reactions on a range of elements have been evaluated for incident energies up to 150 MeV. These cross…”
Get full text

In-flight Validation and Routine Measurements by Beck, P., Bartlett, D., O'Brien, K., Schrewe, U.J.

“…Different methods of aircrew dose assessment are under discussion and evaluation by several international research groups. The TEPC (tissue-equivalent…”
Get full text

Photon Kerma Determination Using a High Pressure Graphite Ionisation Chamber in Mixed Fields of Neutrons of Energy 44 and 66 MeV by Golnik, N., Brede, H.J., Schrewe, U.J., Zielczy_ski, M.

Get full text

Calibration Problems, Calibration Procedures and Reference Fields for Dosimetry at Flight Altitudes by Schrewe, U.J., Alberts, W.G., Alevra, A.V., Ferrari, A., Otto, T., Silari, M.

“…Dosemeters used to measure the ambient dose equivalent, H*(10), usually require calibration with respect to this quantity. Under calibration conditions, the…”
Get full text

GAS-TO-WALL ABSORBED DOSE CONVERSION FACTORS FOR NEUTRON ENERGIES OF 25 TO 250 MeV by NEWHAUSER, W.D., SCHREWE, U.J.

“…Cavity chamber absorbed dose measurements do not usually strictly adhere to the conditions of the Fano theorem and therefore the differences in the gas and…”
Get full text

Measurements with the PTB 'C' Bonner Sphere Spectrometer in the PSI Villigen 55 MeV Neutron Field for Spectrometry and Calibration Purposes by Alevra, A.V., Schrewe, U.J.

“…The PTB Bonner sphere spectrometer was used for measurements in the 55 MeV quasi-monoenergetic neutron beam at PSI, Villigen. The spectral fluence of the…”
Get full text

Dosimetry for Occupational Exposure to Cosmic Radiation by Bartlett, D.T., McAulay, I.R., Schrewe, U.J., Schnuer, K., Menzel, H.G., Bottollier-Depois, J-F., Dietze, G., Gmür, K., Grillmaier, R.E., Heinrich, W., Lim, T., Lindborg, L., Reitz, G., Schraube, H., Spurný, F., Tommasino (INVITED), L.

“…In the course of their work, aircraft crew and frequent flyers are exposed to elevated levels of cosmic radiation of galactic and solar origin and secondary…”
Get full text

Comparison of Various Dose Quantities in Tissue and Tissue Substitutes at Neutron Energies Between 20 MeV and 100 MeV by Schrewe, U.J., Alberts, W.G., Newhauser, W.D., Brede, H.J., DeLuca Jr, P.M.

“…Using kerma factor data, for H, C, N, and O in the neutron energy range from 20 MeV to 100 MeV provided by recent calculations and evaluations, the absorbed…”
Get full text

Kerma Measurements in Polyenergetic Neutron Fields by Newhauser, W.D., Schrewe, U.J., Brede, H.J., Matzke, M., DeLuca Jr, P.M.

“…Absorbed dose was measured as a function of neutron energy with a small spherical proportional counter irradiated in the pulsed-beam broad energy spectrum…”
Get full text