Search Results - "Knudsen, Helge"

Experimental evidence of quantum radiation reaction in aligned crystals by Wistisen, Tobias N., Di Piazza, Antonino, Knudsen, Helge V., Uggerhøj, Ulrik I.

“…Quantum radiation reaction is the influence of multiple photon emissions from a charged particle on the particle's dynamics, characterized by a significant…”
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Direct measurement of the formation length of photons by Andersen, Kristoffer K, Andersen, Søren L, Esberg, Jakob, Knudsen, Helge, Mikkelsen, Rune, Uggerhøj, Ulrik I, Sona, Pietro, Mangiarotti, Alessio, Ketel, Tjeerd J, Ballestrero, Sergio

“…We report the first observation of a shoulder in the radiation spectrum from GeV electrons in a structured target consisting of two thin and closely spaced…”
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The biological effectiveness of antiproton irradiation by Holzscheiter, Michael H., Bassler, Niels, Agazaryan, Nzhde, Beyer, Gerd, Blackmore, Ewart, DeMarco, John J., Doser, Michael, Durand, Ralph E., Hartley, Oliver, Iwamoto, Keisuke S., Knudsen, Helge V., Landua, Rolf, Maggiore, Carl, McBride, William H., Møller, Søren Pape, Petersen, Jørgen, Skarsgard, Lloyd D., Smathers, James B., Solberg, Timothy D., Uggerhøj, Ulrik I., Vranjes, Sanja, Withers, H. Rodney, Wong, Michelle, Wouters, Bradly G.

“…Antiprotons travel through tissue in a manner similar to that for protons until they reach the end of their range where they annihilate and deposit additional…”
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Antiproton radiotherapy by Bassler, Niels, Alsner, Jan, Beyer, Gerd, DeMarco, John J, Doser, Michael, Hajdukovic, Dragan, Hartley, Oliver, Iwamoto, Keisuke S, Jäkel, Oliver, Knudsen, Helge V, Kovacevic, Sandra, Møller, Søren Pape, Overgaard, Jens, Petersen, Jørgen B, Solberg, Timothy D, Sørensen, Brita S, Vranjes, Sanja, Wouters, Bradly G, Holzscheiter, Michael H

“…Abstract Antiprotons are interesting as a possible future modality in radiation therapy for the following reasons: When fast antiprotons penetrate matter,…”
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Antiproton therapy by Knudsen, Helge V., Holzscheiter, Michael H., Bassler, Niels, Alsner, Jan, Beyer, Gerd, DeMarco, John J., Doser, Michael, Hajdukovic, Dragan, Hartley, Oliver, Iwamoto, Keisuke S., Jäkel, Oliver, Kovacevic, Sandra, Møller, Søren Pape, Overgaard, Jens, Petersen, Jørgen B., Ratib, Osman, Solberg, Timothy D., Vranjes, Sanja, Wouters, Bradly G.

“…Radiotherapy is one of the most important means we have for the treatment of localised tumours. It is therefore essential to optimize the technique, and a lot…”
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Biological effectiveness of antiproton annihilation by Holzscheiter, Michael H., Agazaryan, Nzhde, Bassler, Niels, Beyer, Gerd, DeMarco, John J., Doser, Michael, Ichioka, Toshiyasu, Iwamoto, Keisuke S., Knudsen, Helge V., Landua, Rolf, Maggiore, Carl, McBride, William H., Møller, Søren Pape, Petersen, Jorgen, Smathers, James B., Skarsgard, Lloyd D., Solberg, Timothy D., Uggerhøj, Ulrik I., Withers, H.Rodney, Vranjes, Sanja, Wong, Michelle, Wouters, Bradly G.

“…We describe an experiment designed to determine whether or not the densely ionizing particles emanating from the annihilation of antiprotons produce an…”
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Communication and interaction between customers and pharmacy personnel in two Norwegian pharmacies - an observational study by STRø MME, HELGE KNUDSEN, HAUGLI, ARILD

“…During the summer of 1993, a social anthropologist carried out non‐participating observations in two pharmacies in Oslo, Norway, in order to describe the…”
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The relative biological effectiveness of antiprotons by Holzscheiter, Michael H, Alsner, Jan, Bassler, Niels, Boll, Rebecca, Caccia, Massimo, Knudsen, Helge, Maggiore, Carl, Petersen, Jørgen B, Sellner, Stefan, Straße, Tina, Singers Sørensen, Brita, Overgaard, Jens

“…Abstract Background and purpose Aside from the enhancement of physical dose deposited by antiprotons annihilating in tissue-like material compared to protons…”
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Antiproton annihilation physics in the Monte Carlo particle transport code SHIELD-HIT12A by Taasti, Vicki Trier, Knudsen, Helge, Holzscheiter, Michael H., Sobolevsky, Nikolai, Thomsen, Bjarne, Bassler, Niels

“…The Monte Carlo particle transport code SHIELD-HIT12A is designed to simulate therapeutic beams for cancer radiotherapy with fast ions. SHIELD-HIT12A allows…”
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Positronium formation from porous silica in backscattering and transmission geometries by Andersen, Søren L., Johansen, Rasmus R., Overgaard, Jakob B., Mortensen, Johan K., Andersen, Kristoffer K., Thomsen, Heine D., Lund, Mikkel D., Chevallier, Jacques, Knudsen, Helge, Uggerhøj, Ulrik I.

“…The Aarhus positron beam line is utilised to measure the positronium formation fraction from porous silica thin films created by the Glancing Angle Deposition…”
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V-79 Chinese Hamster cells irradiated with antiprotons, a study of peripheral damage due to medium and long range components of the annihilation radiation by Kovacevic, Sandra, Bassler, Niels, Hartley, Oliver, Knudsen, Helge, Vranjes, Sanja, Garaj-Vrhovac, Vera, Holzscheiter, Michael

“…Purpose: Radiotherapy of cancer carries a perceived risk of inducing secondary cancer and other damage due to dose delivered to normal tissue. While expectedly…”
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Editorial by Uggerhøj, Ulrik, Ichioka, Toshiyasu, Knudsen, Helge

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Measurements of electron spectra in the forward direction in slow-antiproton carbon-foil collisions by YAMAZAKI, Y, KUROKI, K, KOMAKI, K.-I, ANDERSEN, L. H, HORSDAL-PEDERSEN, E, HVELPLUND, H, MØLLER, S. P, UGGERHØJ, E, ELSENER, K

“…The spectrta of electrons emitted in the forward direction from antiproton and proton bombardments on carbon foils have been studied for projectile energies…”
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Bubble detector measurements of a mixed radiation field from antiproton annihilation by Bassler, Niels, Knudsen, Helge, Møller, Søren Pape, Petersen, Jørgen B., Rahbek, Dennis, Uggerhøj, Ulrik I.

“…In the light of recent progress in the study of the biological potential of antiproton tumour treatment it is important to be able to characterize the neutron…”
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Absolute measurements of photoionization cross-sections for ions by Kjeldsen, Henrik, Folkmann, Finn, Elp, Jan van, Knudsen, Helge, West, John B., Andersen, Torkild

“…A merged-beam set-up for absolute measurements of photoionization cross-sections of ions is described. The facility is capable of recording cross-sections as…”
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Experimental Evidence of Quantum Radiation Reaction in Aligned Crystals by Wistisen, Tobias N, Di Piazza, Antonino, Knudsen, Helge V, Uggerhøj, Ulrik I

“…Nature Communications volume 9, Article number: 795 (2018) Radiation reaction is the influence of the electromagnetic field emitted by a charged particle on…”
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Biological effectiveness of antiproton annihilation by Maggiore, Carl, Agazaryan, Nzhde, Bassler, Niels, Blackmore, Ewart, Beyer, Gerd, DeMarco, John J., Doser, Michael, Gruhn, Charles R., Holzscheiter, Michael H., Ichioka, Toshiyasu, Iwamoto, Keisuke S., Knudsen, Helge V., Landua, Rolf, McBride, William H., Møller, Søren Pape, Petersen, Jorgen, Smathers, James B., Skarsgard, Lloyd D., Solberg, Timothy D., Uggerhøj, Ulrik I., Withers, H.Rodney, Wouters, Bradly G.

“…A new experiment, AD-4/ACE (antiproton cell experiment), has been approved by the CERN Research Board. The experiment is scheduled to begin taking data in June…”
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Factors Relating to the Choice of Antihypertensive and Hypnotic Drug Treatment in Old Patients by Strømme, Helge Knudsen, Botten, Grete

“…The aim of this study was to investigate factors relating to GPs' choices and opinions as regards the prescribing of antihypertensives and sedatives for old…”
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Electron correlation in the continuum: The e -2 e process for small relative momenta of the outgoing electrons by Guang-yan, Pan, Hvelplund, Preben, Knudsen, Helge, Yamazaki, Yasunori, Brauner, Michael, Briggs, John S.

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Electron correlation in the continuum: The e-2e process for small relative momenta of the outgoing electrons by Guang-yan, P, Hvelplund, P, Knudsen, H, Yamazaki, Y, Brauner, M, Briggs, JS

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