Rühmann A - Search Results

1

Mapping radiation quality inside photon-irradiated absorbers by means of a twin-chamber method.

Chofor N, Harder D, Looe HK, Kapsch RP, Kollhoff R, Willborn K, Rühmann A, Poppe B. Chofor N, et al. Among authors: ruhmann a. Z Med Phys. 2009;19(4):252-63. doi: 10.1016/j.zemedi.2009.05.006. Epub 2009 Jun 21. Z Med Phys. 2009. PMID: 19962083

2

The dose-area product, a new parameter for the dosimetry of narrow photon beams.

Djouguela A, Harder D, Kollhoff R, Rühmann A, Willborn KC, Poppe B. Djouguela A, et al. Among authors: ruhmann a. Z Med Phys. 2006;16(3):217-27. doi: 10.1078/0939-3889-00317. Z Med Phys. 2006. PMID: 16986461

3

Dosimetric characteristics of an unshielded p-type Si diode: linearity, photon energy dependence and spatial resolution.

Djouguela A, Griessbach I, Harder D, Kollhoff R, Chofor N, Rühmann A, Willborn K, Poppe B. Djouguela A, et al. Among authors: ruhmann a. Z Med Phys. 2008;18(4):301-6. doi: 10.1016/j.zemedi.2008.06.007. Z Med Phys. 2008. PMID: 19205300

4

Fourier deconvolution reveals the role of the Lorentz function as the convolution kernel of narrow photon beams.

Djouguela A, Harder D, Kollhoff R, Foschepoth S, Kunth W, Rühmann A, Willborn K, Poppe B. Djouguela A, et al. Among authors: ruhmann a. Phys Med Biol. 2009 May 7;54(9):2807-27. doi: 10.1088/0031-9155/54/9/015. Epub 2009 Apr 15. Phys Med Biol. 2009. PMID: 19369712

5

Experimental study on photon-beam peripheral doses, their components and some possibilities for their reduction.

Chofor N, Harder D, Rühmann A, Willborn KC, Wiezorek T, Poppe B. Chofor N, et al. Among authors: ruhmann a. Phys Med Biol. 2010 Jul 21;55(14):4011-27. doi: 10.1088/0031-9155/55/14/005. Epub 2010 Jun 24. Phys Med Biol. 2010. PMID: 20577041

6

Low-energy photons in high-energy photon fields--Monte Carlo generated spectra and a new descriptive parameter.

Chofor N, Harder D, Willborn K, Rühmann A, Poppe B. Chofor N, et al. Among authors: ruhmann a. Z Med Phys. 2011 Sep;21(3):183-97. doi: 10.1016/j.zemedi.2011.02.002. Epub 2011 May 6. Z Med Phys. 2011. PMID: 21530198 Free article.

7

A direction-selective flattening filter for clinical photon beams. Monte Carlo evaluation of a new concept.

Chofor N, Harder D, Willborn K, Rühmann A, Poppe B. Chofor N, et al. Among authors: ruhmann a. Phys Med Biol. 2011 Jul 21;56(14):4355-76. doi: 10.1088/0031-9155/56/14/009. Epub 2011 Jun 27. Phys Med Biol. 2011. PMID: 21709343

8

Characterization of the radiation quality of 60Co therapy units by the fraction of air kerma attributable to scattered photons.

Chofor N, Looe HK, Kapsch RP, Harder D, Willborn KC, Rühmann A, Poppe B. Chofor N, et al. Among authors: ruhmann a. Phys Med Biol. 2007 Apr 7;52(7):N137-47. doi: 10.1088/0031-9155/52/7/N03. Epub 2007 Mar 16. Phys Med Biol. 2007. PMID: 17374907

9

The effect of a carbon-fiber couch on the depth-dose curves and transmission properties for megavoltage photon beams.

Poppe B, Chofor N, Rühmann A, Kunth W, Djouguela A, Kollhoff R, Willborn KC. Poppe B, et al. Among authors: ruhmann a. Strahlenther Onkol. 2007 Jan;183(1):43-8. doi: 10.1007/s00066-007-1582-8. Strahlenther Onkol. 2007. PMID: 17225945

10

Spatial resolution of 2D ionization chamber arrays for IMRT dose verification: single-detector size and sampling step width.

Poppe B, Djouguela A, Blechschmidt A, Willborn K, Rühmann A, Harder D. Poppe B, et al. Among authors: ruhmann a. Phys Med Biol. 2007 May 21;52(10):2921-35. doi: 10.1088/0031-9155/52/10/019. Epub 2007 May 1. Phys Med Biol. 2007. PMID: 17473360

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