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Address:

Carl von Ossietzky Universität
Fakultät VI
Dept. für medizinische Physik und Akustik
D-26111 Oldenburg

AG Anschrift

Strahlentherapie/ 
Medizinische Physik

Pius-Hospital Oldenburg
Georgstraße 12
26121 Oldenburg
Tel: +49 441/229 1625
Fax: +49 441/229 1645

Publications

Peer Reviewed Papers

Weber C, Kranzer R, Weidner J et al. Small field output correction factors of the microSilicon detector and a deeper understanding of their origin by quantifying perturbation factors. Med Phys. 2020

Ott T, Drolshagen E, Koschny D et al. NEMO - The NEar real-time MOnitoring system – Harvesting information online for a fireball monitoring and alert system. Acta Astronautica. 2020;177:172-181.

Schönfeld AB, Schönfeld AA, Looe HK, Poppe B, de Wilde RL. Experimental determination of the recombination correction factor k|S| for SNC 125c, SNC 350p and SNC 600c ionization chambers in pulsed photon beams. Z Med Phys. 2020

Poppinga D, Kretschmer J, Brodbek L, Meyners J, Poppe B, Looe HK. Evaluation of the RUBY modular QA phantom for planar and non-coplanar VMAT and stereotactic radiations. J Appl Clin Med Phys. 2020

Brodbek L, Kretschmer J, Willborn K et al. Analysis of the applicability of two-dimensional detector arrays in terms of sampling rate and detector size to verify scanned intensity-modulated proton therapy plans. Med Phys. 2020

Hartmann GH, Hensley F, Kapsch RP et al. [Detector Based Determination of Water Absorbed Dose According to DIN 6800 Teil 1: Suggestion for an Extension of the Fundamental Formalism]. Z Med Phys. 2019

Poppinga D, Kranzer R, Ulrichs A et al. Three‐dimensional characterization of the active volumes of PTW microDiamond, microSilicon, and Diode E dosimetry detectors using a proton microbeam. Medical Physics. 2019;46:4241-4245.

Poppinga D, Kranzer R, Ulrichs AB et al. Three-dimensional characterization of the active volumes of PTW microDiamond, microSilicon, and Diode E dosimetry detectors using a proton microbeam. Med Phys. 2019;46:4241-4245.

Looe HK, Poppinga D, Kranzer R et al. The role of radiation-induced charge imbalance on the dose-response of a commercial synthetic diamond detector in small field dosimetry. Med Phys. 2019;46:2752-2759.

Schönfeld AB, Poppinga D, Kranzer R et al. Technical Note: Characterization of the new microSilicon diode detector. Med Phys. 2019;46:4257-4262.

Stelljes TS, Poppinga D, Kretschmer J, Brodbek L, Looe HK, Poppe B. Experimental determination of the “collimator monitoring fill factor” and its relation to the error detection capabilities of various 2D-arrays. Med Phys. 2019

Büsing I, Brant A, Lange T et al. Experimental and Monte-Carlo characterization of the novel compact ionization chamber PTW 31023 for reference and relative dosimetry in high energy photon beams. Z Med Phys. 2019

Poppe B, Stelljes TS, Looe HK, Harder D, Willborn K. Erratum: “Performance Parameters of a Liquid Filled Ionization Chamber Array” [Med. Phys. 40, 082106 (2013)]. Med Phys. 2019

Ott T, Drolshagen E, Koschny D et al. Combination of infrasound signals and complementary data for the analysis of bright fireballs. Planetary and Space Science. 2019104715.

Ott T, Drolshagen E, Koschny D et al. Combination of infrasound signals and complementary data for the analysis of bright fireballs. Planetary and Space Science. 2019104715.

Delfs B, Kapsch RP, Chofor N, Looe HK, Harder D, Poppe B. A new reference-type ionization chamber with direction-independent response for use in small-field photon-beam dosimetry - An experimental and Monte Carlo study. Z Med Phys. 2019;29:39-48.

Looe HK, Büsing I, Tekin T et al. The polarity effect of compact ionization chambers used for small field dosimetry. Medical Physics. 2018;45:5608-5621.

Poppinga D, Delfs B, Meyners J, Harder D, Poppe B, Looe HK. The output factor correction as function of the photon beam field size – direct measurement and calculation from the lateral dose response functions of gas-filled and solid detectors. Zeitschrift für Medizinische Physik. 2018;28:224-235.

Delfs B, Poppinga D, Ulrichs AB et al. The 1D lateral dose response functions of photon-dosimetry detectors in magnetic fields-measurement and Monte-Carlo simulation. Phys Med Biol. 2018;63:195002.

Schoenfeld AA, Büsing K, Delfs B et al. Reference conditions for ion-chamber based HDR brachytherapy dosimetry and for the calibration of high-resolution solid detectors. Z Med Phys. 2018;28:293-302.

Abdelkhalek H, Koenig S, Weber D, Poppe B, Lomax T. Patient positioning verification for proton therapy using Proton range probes: Experimental validation in phantom geometries. acceptec by Phys Med Biol. 2018

Hammi A, Koenig S, Weber DC, Poppe B, Lomax AJ. Patient positioning verification for proton therapy using proton radiography. Phys Med Biol. 2018;63:245009.

Czarnecki D, Poppe B, Zink K. Impact of new ICRU Report 90 recommendations on calculated correction factors for reference dosimetry. Phys Med Biol. 2018;63:155015.

Jiang P, Geenen M, Siebert FA et al. Efficacy and the toxicity of the interstitial high-dose-rate brachytherapy in the management of recurrent keloids: 5-year outcomes. Brachytherapy. 2018;17:597-600.

Poppinga D, Delfs B, Meyners J et al. Determination of the active volumes of solid-state photon-beam dosimetry detectors using the PTB proton microbeam. Med Phys. 2018;45:3340-3348.

Looe HK, Delfs B, Poppinga D, Harder D, Poppe B. 2D convolution kernels of ionization chambers used for photon-beam dosimetry in magnetic fields: the advantage of small over large chamber dimensions. Phys Med Biol. 2018;63:075013.

Poppinga D, Delfs B, Meyners J, Harder D, Poppe B, Looe HK. The output factor correction as function of the photon beam field size - direct measurement and calculation from the lateral dose response functions of gas-filled and solid detectors. Z Med Phys. 2017

Looe HK, Harder D, Poppe B. The energy dependence of the lateral dose response functions of detectors with various densities in photon-beam dosimetry. Phys Med Biol. 2017;62:N32-N44.

Looe HK, Harder D, Poppe B. The energy dependence of the lateral dose response functions of detectors with various densities in photon-beam dosimetry. Phys Med Biol. 2017;62:N32-N44.

Looe HK, Delfs B, Poppinga D, Jiang P, Harder D, Poppe B. The ‘cutting away’ of potential secondary electron tracks explains the effects of beam size and detector wall density in small-field photon dosimetry. Phys Med Biol. 2017;63:015001.

Stelljes TS, Looe HK, Harder D, Poppe B. The “collimator monitoring fill factor” of a two-dimensional detector array, a measure of its ability to detect collimation errors. Med Phys. 2017;44:1128-1138.

Poppinga D, Halbur J, Lemmer S et al. Test study of boron nitride as a new detector material for dosimetry in high-energy photon beams. Phys Med Biol. 2017;62:N436-N444.

editors. Small-field output factor corrections of gas-filled and solid photon detectors – Derivation from their lateral dose response functions by a convolution technique in comparison with direct measuremen. 2017; 2017.

Schoenfeld AA, Busing K, Delfs B et al. Reference conditions for ion-chamber based HDR brachytherapy dosimetry and for the calibration of high-resolution solid detectors. Z Med Phys. 2017

Costa PF, Reinhardt M, Poppe B. Occupational Exposure From F-18-FDG PET/CT: Implementation from Routine to Clinical Practice. Radiat Prot Dosimetry. 2017

Czarnecki D, Poppe B, Zink K. Monte Carlo-based investigations on the impact of removing the flattening filter on beam quality specifiers for photon beam dosimetry. Med Phys. 2017;44:2569-2580.

Drolshagen G, Koschny D, Drolshagen S, Kretschmer J, Poppe B. Mass accumulation of earth from interplanetary dust, meteoroids, asteroids and comets. Planetary and Space Science. 2017;143:21-27.

Delfs B, Schoenfeld AA, Poppinga D et al. Magnetic fields are causing small, but significant changes of the radiochromic EBT3 film response to 6 MV photons. Phys Med Biol. 2017

Looe HK, Delfs B, Poppinga D, Harder D, Poppe B. Magnetic field influences on the lateral dose response functions of photon-beam detectors: MC study of wall-less water-filled detectors with various densities. Phys Med Biol. 2017;62:5131-5148.

Jiang P, van der Horst C, Kimmig B et al. Interstitial high-dose-rate brachytherapy as salvage treatment for locally recurrent prostate cancer after definitive radiation therapy: Toxicity and 5-year outcome. Brachytherapy. 2017;16:186-192.

D K, Drolshagen G, Drolshagen S et al. Flux densities of meteoroids derived from optical double-station observations. Planetary and Space Science. 2017;143:230-237.

Schoenfeld AA, Thieben M, Harder D, Poppe B, Chofor N. Evaluation of water-mimicking solid phantom materials for use in HDR and LDR brachytherapy dosimetry. Phys Med Biol. 2017;62:N561-N572.

Ott T, Drolshagen E, Koschny D et al. Dust Mass Distribution around Comet 67P/Churyumov-Gerasimenko determined via Parallax Measurements using Rosetta’s OSIRIS Cameras. MNRAS. 2017;469:276-284.

Drolshagen E, Ott T, Koschny D et al. Distance determination method of dust particles using Rosetta OSIRIS NAC and WAC data. Planetary and Space Science. 2017;143:256-264.

editors. Determination of EPID convolution kernels for portal imaging using carbon target bremsstrahlung. 2017; 2017.

Stelljes TS, Poppinga D, Kretschmer J et al. Comparison between differing fill factor definitions for two-dimensional detector arrays. Biomed Eng-Biomed Tech. 2017;62:S373.

Albin T, Koschny D, Molau S, Srama R, Poppe B. Analysis of the technical biases of meteor video cameras used in the CILBO system. Geoscientific Instrumentation, Methods and Data Systems. 2017;6:125-140.

Schoenfeld AA, Wieker S, Harder D, Poppe B. The origin of the flatbed scanner artifacts in radiochromic film dosimetry-key experiments and theoretical descriptions. Phys Med Biol. 2016;61:7704-7724.

Chofor N, Harder D, Selbach HJ, Poppe B. The mean photon energy ĒF at the point of measurement determines the detector-specific radiation quality correction factor kQ,M in (192)Ir brachytherapy dosimetry. Z Med Phys. 2016;26:238-250.

Looe HK, Harder D, Poppe B. The energy dependence of the lateral dose response functionsf detectors with various densities in photon-beam dosimetry. Phys Med Biol. 2016;62:N32-N44.

Albin T, Drolshagen E, Drolshagen G et al. The Canary Islands Long-Baseline Observatory (CILBO) – 3 years of stereoscopic meteor observations. Dusty Visions. 2016

Schönfeld A, Wieker S, Harder D, Poppe B. Schlüsselexperimenre und mathematische Modelle zu den Artefakten der Filmdosimetrie. DGMP ISRM Jahrestagung, ed L Schreiber and JB H√∂vener, ISBN: 978-3-9816508-2-2. 2016

Blanck O, Masi L, Chan MKH et al. High resolution ion chamber array delivery quality assurance for robotic radiosurgery: Commissioning and validation. Physica Medica. 2016

Koschny D, Drolshagen E, Drolshagen S et al. Flux densities of meteoroids derived from optical double-station observations. Planetary and Space Science. 2016

Schoenfeld AA, Wieker S, Harder D, Poppe B. Changes of the optical characteristics of radiochromic films in the transition from EBT3 to EBT-XD films. Phys Med Biol. 2016;61:5426-5442.

Grone J, Brouwer CL, Zhai T et al. Atlas-based automatic contouring using the Mirada RTx system. Strahlenther Onkol 192(Suppl 1): 1 doiorg/101007/s00066-016-0974-z. 2016

Schoenfeld AA, Harder D, Poppe B, Chofor N. Water equivalent phantom materials for ¹⁹²Ir brachytherapy. Phys Med Biol. 2015;60:9403-9420.

Looe HK, Harder D, Poppe B. Understanding the lateral dose response functions of high-resolution photon detectors by reverse Monte Carlo and deconvolution analysis. Phys Med Biol. 2015;60:6585-6607.

Chofor N, Harder D, Selbach HJ, Poppe B. The mean photon energy E at the point of measurement determines the detector-specific radiation quality correction factor k in Ir brachytherapy dosimetry. Z Med Phys. 2015

Blanck O, Masi L, Damme MC et al. Film-based delivery quality assurance for robotic radiosurgery: Commissioning and validation. Phys Med. 2015;31:476-483.

Blanck O, Masi L, Damme MC et al. Film-based delivery quality assurance for robotic radiosurgery: Commissioning and validation. Phys Med. 2015;31:476-483.

Poppinga D, Meyners J, Delfs B et al. Experimental determination of the lateral dose response functions of detectors to be applied in the measurement of narrow photon-beam dose profiles. Phys Med Biol. 2015;60:9421-9436.

Poppe B, T P, W Z et al. Early-Time Flux Measurements of SN 2014J Obtained with Small Robotic Telescopes: Extending the AAVSO Light Curve. JAAVSO. 2015

Stelljes TS, Harmeyer A, Reuter J et al. Dosimetric characteristics of the novel 2D ionization chamber array OCTAVIUS Detector 1500. Med Phys. 2015;42:1528-1537.

Saeed MK, Poppe B, Fischer HW. Direct air activation measurements at a 15-MV medical linear accelerator. Radiat Prot Dosimetry. 2015;163:233-237.

Liebmann M, Poppe B, von Boetticher H. Computed tomography dosimetry with high-resolution detectors commonly used in radiotherapy - an energy dependence study. J Appl Clin Med Phys. 2015;16:396-407.

Looe HK, Poppe B, Harder D. The Volume Effect Correction of Probe-Type Dosimetric Detectors Derived From the Convolution Model. Med Phys. 2014;41:299-300.

Schoenfeld AA, Poppinga D, Harder D, Doerner KJ, Poppe B. The artefacts of radiochromic film dosimetry with flatbed scanners and their causation by light scattering from radiation-induced polymers. Phys Med Biol. 2014;59:3575-3597.

Chofor N, Harder D, Poppe B. Supplementary values of the dosimetric parameters kNR and Em for various types of detectors in 6 and 15 MV photon fields. Z Med Phys. 2014;24:27-37.

Liebmann M, Lullau T, Kluge A, Poppe B, von Boetticher H. Patient radiation protection covers for head CT scans - a clinical evaluation of their effectiveness. Rofo. 2014;186:1022-1027.

Poppinga D, Looe H, Chofor N et al. Micro Diamonds - Determination of Their Lateral Response Function Via Gap-Beam Dose Profiles. Med Phys. 2014;41:276-277.

Poppinga D, Looe H, Stelljes T, Blanck O, Harder D, Poppe B. Liquid Ionisation Chamber Array and MicroDiamond Measurements with the CyberKnife System. Med Phys. 2014;41:275-276.

Failing T, Chofor N, Poppinga D, Schoenfeld A, Willborn K, Poppe B. Examination of Surface Dose Enhancement Using Radiochromic EBT3-Films in a Cylindrical Setup. Med Phys. 2014;41:263-263.

Stelljes T, Harmeyer A, Reuter J et al. Dosimetric Properties of the OCTAVIUS Detector 1500. Med Phys. 2014;41:253-253

Chofor N, Nebah F, Harder D, Poppe B. Application of a Twin-Detector Method for the Determination of the Mean Photon Energy Em at Points of Measurement in a Water Phantom Surrounding a GammaMed HDR 192Ir Brachytherapy Source. Med Phys. 2014;41:232-232.

Jansen A, Schoenfeld A, Poppinga D, Chofor N, Poppe B. Angular Dependence of Surface Dose Enhancement Measured On Several Inhomogeneities Using Radiochromic EBT3 Films. Med Phys. 2014;41:231-232.

Schoenfeld A, Poppinga D, Harder D, Doerner K, Poppe B. An Optical Investigation Into the Polarization and Scattering Effects Underlying the Artifacts of Radiochromic Film Dosimetry with Commercial Flatbed Scanners. Med Phys. 2014;41:230-230.

Poppinga D, Schoenfeld AA, Doerner KJ, Blanck O, Harder D, Poppe B. A new correction method serving to eliminate the parabola effect of flatbed scanners used in radiochromic film dosimetry. Med Phys. 2014;41:021707.

Stelljes TS, Looe HK, Willborn K, Poppe B. Verification of Prostate VMAT Treatment Plans Using the Octavius 4D System. Med Phys. 2013;40:280-281.

Looe HK, Stelljes TS, Foschepoth S, Harder D, Willborn K, Poppe B. The dose response functions of ionization chambers in photon dosimetry - Gaussian or non-Gaussian? Z Med Phys. 2013;23:129-143.

Poppe B, Stelljes TS, Looe HK, Chofor N, Harder D, Willborn K. Performance parameters of a liquid filled ionization chamber array. Med Phys. 2013;40:082106.

Heilemann G, Poppe B, Laub W. On the sensitivity of common gamma-index evaluation methods to MLC misalignments in Rapidarc quality assurance. Med Phys. 2013;40:031702.

Looe HK, Chofor N, Harmeyer A et al. On the Dose Response Function and the Energy Dependence of a Novel Synthetic Single Crystal Diamond Detector. Med Phys. 2013;40:218-218.

Markovic M, Stathakis S, Ha C, Poppe B, Gutierrez A, Papanikolaou N. Investigation of the Characteristics of the OCTAVIUS Detector 1000 SRS for Verification of the Small Field Size IMRT and SRS Beams. Med Phys. 2013;40:292-292.

Schoenfeld A, Crilly R, Poppe B, Laub W. Experimental Study On the Performance of the OMAR CT Artifact Correction Algorithm Near Titanium and Stainless Steel. Med Phys. 2013;40:133-134.

Schoenfeld A, Poppinga D, Harder D, Poppe B. Experimental Study of Anisotropic Light Scattering and Polarization Effects of EBT3‚ÄêFilms. Med Phys. 2013;40:145-145.

Stelljes TS, van Goethem M, Brandenburg S, Willborn K, Poppe B. Evaluation of a Two-Dimensional Ionization Chamber Array for Proton Beam Dosimetry. Med Phys. 2013;40:217-217.

Chofor N, Lohmann N, Luetjens S, Harder D, Poppe B. Dosimetric Verification of Monte Carlo Dose Calculations for a GammaMed HDR 192Ir Brachytherapy Source Using Various Detector Types, and Non-Reference Condition Correction Factors KNR. Med Phys. 2013;40:215-215.

Stelljes TS, Poppe B, Looe HK, Harder D, Willborn K. Dosimetric Properties of the Octavius 1000SRS Liquid Filled Ionization Chamber Array. Med Phys. 2013;40:217-217.

Markovic M, Stathakis S, Ha C, Poppe B, Gutierrez A, Papanikolaou N. Characterization of the Two-Dimensional Liquid Field Ion Chamber Detector Array Used for the Verification of the Treatments in Radiation Therapy. Med Phys. 2013;40:278-278.

Looe HK, Harder D, Poppe B. Are the Dose Response Functions of Ionization Chambers Gaussian Or Non‚ÄêGaussian? Med Phys. 2013;40:219-219.

Poppinga D, Schoenfeld A, Blanck O, Harder D, Poppe B. A New Method Correcting the Parabola Effect of Flat‚ÄêBed Scanners Used in Radiochromic Film Dosimetry. Med Phys. 2013;40:208-208.

Borowski M, B P, Boetticher HV. Sind elektronische Personendosimeter in klinischen Expositionssituationen grundsätzlich nicht einsetzbar? Z Gastroenterol. 2012;50:271-272.

Looe HK, Uphoff Y, Harder D, Poppe B, Willborn KC. Numerical deconvolution to enhance sharpness and contrast of portal images for radiotherapy patient positioning verification. Strahlenther Onkol. 2012;188:185-190.

Chofor N, Harder D, Poppe B. Non-reference condition correction factor kNR of typical radiation detectors applied for the dosimetry of high-energy photon fields in radiotherapy. Z Med Phys. 2012;22:181-196.

Chofor N, Harder D, Willborn KC, Poppe B. Internal scatter, the unavoidable major component of the peripheral dose in photon-beam radiotherapy. Phys Med Biol. 2012;57:1733-1743.

Chofor N, Harder D, Willborn KC, Poppe B. Internal scatter, the unavoidable major component of the peripheral dose in photon-beam radiotherapy. Phys Med Biol. 2012;57:1733-1743.

von Boetticher H, Lullau T, Lammers M, Kamau EN, Poppe B. The deviation of liver dose in real patients for thoracic computed tomography scans: a new approach to individual dosimetry with methods of radiotherapy treatment planning. Health Phys. 2011;101:79-83.

Chofor N, Harder D, Willborn K, Ruhmann A, Poppe B. Low-energy photons in high-energy photon fields--Monte Carlo generated spectra and a new descriptive parameter. Z Med Phys. 2011;21:183-197.

Looe HK, Harder D, Willborn KC, Poppe B. Iterative 2D deconvolution of portal imaging radiographs. Z Med Phys. 2011;21:52-64.

Looe HK, Harder D, Willborn KC, Poppe B. Iterative 2D deconvolution of portal imaging radiographs. Z Med Phys. 2011;21:52-64.

Looe HK, Harder D, Poppe B. Experimental determination of the effective point of measurement for various detectors used in photon and electron beam dosimetry. Phys Med Biol. 2011;56:4267-4290.

Chofor N, Harder D, Willborn K, Ruhmann A, Poppe B. A direction-selective flattening filter for clinical photon beams. Monte Carlo evaluation of a new concept. Phys Med Biol. 2011;56:4355-4376.

Borowski M, Poppe B, Looe HK, von Boetticher H. [Is it really not possible to use electronic personal dosimeters in clinical exposure situations?]. Rofo. 2010;182:773-779.

Looe HK, Harder D, Ruehmann A, Willborn K, Poppe B. SU-GT 183: Enhanced Accuracy of IMRT Photon Fluence Profile Surveillance: Iterative Resolution Correction of the DAVID Chamber. Med Phys. 2010;37:3227-3227.

Poppe B, Looe H, Harder D, Upphoff Y, Ruehmann A, Willborn K. SU-GT 182: Two Years of Clinical Experience with DAVID ‚ A Multi- Wire Detector for On-LineVerification of Patient Treatments. Med Phys. 2010;37:3227-3227.

Chofor N, Harder D, Ruhmann A, Willborn KC, Wiezorek T, Poppe B. Experimental study on photon-beam peripheral doses, their components and some possibilities for their reduction. Phys Med Biol. 2010;55:4011-4027.

Looe HK, Harder D, Ruhmann A, Willborn KC, Poppe B. Enhanced accuracy of the permanent surveillance of IMRT deliveries by iterative deconvolution of DAVID chamber signal profiles. Phys Med Biol. 2010;55:3981-3992.

Poppe B, Looe HK, Chofor N, Rühmann A, Harder D, Willborn KC. Clinical performance of a transmission detector array for the permanent supervision of IMRT deliveries. Radiother Oncol. 2010;95:158-165.

Poppe B, Looe HK, Chofor N, Ruhmann A, Harder D, Willborn KC. Clinical performance of a transmission detector array for the permanent supervision of IMRT deliveries. Radiother Oncol. 2010;95:158-165.

Pfaffenberger A, Schneider U, Poppe B, Oelfke U. Phenomenological modelling of second cancer incidence for radiation treatment planning. Z Med Phys. 2009;19:236-250.

Chofor N, Ruehmann A, Willborn K, Harder D, Poppe B. Monte Carlo Study on spectral quality changes within a water phantom for irradiations with a Siemens Primus linear accelerator operating at 6 MV nominal photon energy. Strahlenther Onkol. 2009

Chofor N, Harder D, Looe HK et al. Mapping radiation quality inside photon-irradiated absorbers by means of a twin-chamber method. Z Med Phys. 2009;19:252-263.

Djouguela A, Harder D, Kollhoff R et al. Fourier deconvolution reveals the role of the Lorentz function as the convolution kernel of narrow photon beams. Phys Med Biol. 2009;54:2807-2827.

Poppe B DA, Heidorn S, Ruehmann A, Willborn K, Harder D. On the Influences of the Detector Size and Sampling Frequency On IMRT Verifications with 2D Arrays. Med Phys. 2008;35:2943.

Poppe B, Looe HK, Pfaffenberger A et al. Dose-area product measurements in panoramic dental radiology. Radiat Prot Dosimetry. 2007;123:131-134.

Looe HK, Eenboom F, Chofor N et al. Dose-area product measurements and determination of conversion coefficients for the estimation of effective dose in dental lateral cephalometric radiology. Radiat Prot Dosimetry. 2007;124:181-186.

Chofor N, Looe HK, Kapsch RP et al. Characterization of the radiation quality of 60Co therapy units by the fraction of air kerma attributable to scattered photons. Phys Med Biol. 2007;52:N137-47.

Poppe B, Blechschmidt A, Djouguela A et al. Two-dimensional ionization chamber arrays for IMRT plan verification. Med Phys. 2006;33:1005.

Djouguela A, Harder D, Kollhoff R, Ruhmann A, Willborn KC, Poppe B. The dose-area product, a new parameter for the dosimetry of narrow photon beams. Z Med Phys. 2006;16:217-227.

Looe HK, Pfaffenberger A, Chofor N et al. Radiation exposure to children in intraoral dental radiology. Radiat Prot Dosimetry. 2006;121:461-465.

Djouguela A, Kollhoff R, Ruhmann A, Willborn KC, Harder D, Poppe B. Physical mechanism of the Schwarzschild effect in film dosimetry--theoretical model and comparison with experiments. Phys Med Biol. 2006;51:4345-4356.

Poppe B, Thieke C, Beyer D et al. DAVID--a translucent multi-wire transmission ionization chamber for in vivo verification of IMRT and conformal irradiation techniques. Phys Med Biol. 2006;51:1237-1248.

Poppe B, Thieke C, Beyer D et al. DAVID--a translucent multi-wire transmission ionization chamber for in vivo verification of IMRT and conformal irradiation techniques. Phys Med Biol. 2006;51:1237-1248.

Fischer HW, Tabot BE, Poppe B. Activation processes in a medical linear accelerator and spatial distribution of activation products. Phys Med Biol. 2006;51:N461-6.

Fischer HW, Tabot BE, Poppe B. Activation processes in a medical linear accelerator and spatial distribution of activation products. Phys Med Biol. 2006;51:N461-6.

Poppe B, Atung Z, Chofor G et al. [Resolution and sensitivity of a two-dimensional ionisation chamber array (PTW type 10024)]. Z Med Phys. 2005;15:287-291.

Poppe B, Harder D, Kollhoff R, Djouguela A, Rubach A, Schuele E. TU-TE09: The DAVID System ‚a Device for In-Vivo Verification of IMRT and Conformal Irradiation Techniques. Med Phys. 2005;32:2090-2091.

Djouguela A, Kollhoff R, Rubach A, Harder D, Poppe B. The Schwarzschild effect of the dosimetry film Kodak EDR 2. Phys Med Biol. 2005;50:N317-21.

Poppe B, Blechschmidt A, Djouguela A et al. SU-FT 140: Dosimetric IMRT Plan Verification and Daily Quality Assurance with a Two-Dimensional Ionization Chamber Array. Med Phys. 2005;32:1982-1982.

Poppe B, Mehran P, Kollhoff R, Rubach A. [Use of a two-dimensional ionization chamber array for quality assurance in medical linear accelerators]. Z Med Phys. 2003;13:115-122.

Poppe B. Introduction of weighted structural complexity measures for analysis of noisy signals and introduction to nuclear medicine image processing. Med Phys. 2002;29:2740.

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