Rühmann A - Search Results

1

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

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

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

4

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

5

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

6

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

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

DAVID--a translucent multi-wire transmission ionization chamber for in vivo verification of IMRT and conformal irradiation techniques.

Poppe B, Thieke C, Beyer D, Kollhoff R, Djouguela A, Rühmann A, Willborn KC, Harder D. Poppe B, et al. Among authors: ruhmann a. Phys Med Biol. 2006 Mar 7;51(5):1237-48. doi: 10.1088/0031-9155/51/5/013. Epub 2006 Feb 15. Phys Med Biol. 2006. PMID: 16481690

9

Physical mechanism of the Schwarzschild effect in film dosimetry--theoretical model and comparison with experiments.

Djouguela A, Kollhoff R, Rühmann A, Willborn KC, Harder D, Poppe B. Djouguela A, et al. Among authors: ruhmann a. Phys Med Biol. 2006 Sep 7;51(17):4345-56. doi: 10.1088/0031-9155/51/17/014. Epub 2006 Aug 15. Phys Med Biol. 2006. PMID: 16912385

10

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

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