| 1. |
- Marchal, J, et al.
(författare)
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Active pixel detector for ion beam profiling
- 2002
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Ingår i: Nuclear Instruments and Methods in Physics Research Section A. - 0168-9002 .- 1872-9576. ; 487:1-2, s. 224-231
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Tidskriftsartikel (refereegranskat)
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| 2. |
- Schnadt, J., Schiessling, J., O'Shea, J.N., Gray, S.M., Patthey, L., Johansson, M.K.J., Shi, M., Krepansky, J., Åhlund, J., Karlsson, P.G., Persson, P., Mårtensson, N., and Brühwiler, P.A.
(författare)
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Structural study of adsorption of isonicotinic acid and related molecules on rutile TiO2(110). I: XAS and STM
- 2003
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Ingår i: Surface Science. ; 540, s. 39-
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Tidskriftsartikel (refereegranskat)
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| 3. |
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| 4. |
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| 5. |
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| 6. |
- Schnadt, Joachim, et al.
(författare)
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Structural study of adsorption of isonicotinic acid and related molecules on rutile TiO2(110) I: XAS and STM
- 2003
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Ingår i: Surface Science. - 0039-6028. ; 540:1, s. 39-54
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Tidskriftsartikel (refereegranskat)abstract
- X-ray absorption spectroscopy (XAS) and scanning tunneling microscopy (STM) have been used to study the absorption of monolayers of the pyridinecarboxylic acid monomers (isonicotinic acid, nicotinic acid, and picolinic acid) and benzoic acid on a rutile TiO2(1 1 0) surface. We find that the pyridine and phenyl rings are oriented with their planes largely perpendicular to the surface. The azimuthal orientations are strongly influenced by adsorbate-adsorbate interactions, which in each case leads to at least two different molecular species. In order to reach this conclusion a detailed strategy has been developed for the interpretation of angle-dependent XAS data, which does not rely on any curve fitting procedures. (C) 2003 Elsevier B.V. All rights reserved.
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| 7. |
- Thirion, P, et al.
(författare)
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Escalated dose for non-small-cell lung cancer with accelerated hypofractionated three-dimensional conformal radiation therapy
- 2004
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Ingår i: Radiotherapy and Oncology. - : Elsevier BV. - 1879-0887 .- 0167-8140. ; 71:2, s. 163-166
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Tidskriftsartikel (refereegranskat)abstract
- Background and Purpose: To prospectively assess the feasibility and efficacy of a hypofractionated accelerated radiotherapy regimen (72 Gy in 24 daily fractions, 3Gy per fraction) in patients (pts) with non-resectable non-small-cell lung cancer (NSCLC). Material and Methods: We included 25 Ins with a histologically or cytologically proven NSCLC, with KPS greater than or equal to 70 and less than or equal to 10% weight loss over prior three months, and with tumour stage I/II medically inoperable (9 pts) or non-resectable stage III a/b without pleural effusion (16 pts). Eleven pts received induction chemotherapy. No more than 30% of the combined lung volume could receive more than 25 Gy and the maximal biological effective dose to the spinal cord was maintained below 44 Gy. Results: No grade-4 acute toxicity event was reported. Two pts had a treatment break because of grade-3 acute oesophagitis. Twenty-two pts were evaluable for long-term toxicity (median follow-up = 9.7 months, range 4 to 30.2 months). There were 4 Grade-1 pulmonary and 2 Grade-1 oesophageal long-term toxicity events. Twenty-two pts were evaluable for tumour response with 7 complete and 8 partial responses, 5 stable diseases and 2 progressive diseases. The actuarial 1-year overall and thoracic-progression-free survival rates were 68% and 72% respectively. Conclusions: This study demonstrates the feasibility of the experimental radiotherapy schedule, however more data are needed to confirm its efficacy. (C) 2003 Published by Elsevier Ireland Ltd.
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| 8. |
- Davidsson, D. W., et al.
(författare)
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Limitations to flat-field correction methods when using an X-ray spectrum
- 2003
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Ingår i: Nuclear Instruments and Methods in Physics Research Section A. - 0168-9002 .- 1872-9576. ; , s. 146-150
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Tidskriftsartikel (refereegranskat)abstract
- Flat-field correction methods are implemented in order to eliminate non-uniformities in X-ray imaging sensors. If the compensation is perfect, then the remaining variations result from noise over the detector area. The efficiency of the compensation is reduced when an object is placed in the beam. A principle cause of this effect is believed to be the spectrum hardening caused by the object. In a normal application the correction factors are calculated for a certain spectrum, meaning that the average of the correction for the individual photon energies are used. If the composition of the spectrum changes the correction factor will also change. In this paper, we present a theory for the sensitivity of the gain constants on X-ray spectra. The theory is supported by experimental data obtained with X-ray spectra and monochromatic X-rays.
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| 9. |
- J. Schnadt, J. N. O`Shea, L. Patthey, J. Schiessling, M. Shi, J. Krempasky, J. Åhlund, N. Mårtensson, and P. A, Brühwiler
(författare)
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Structural study of adsorption of isonicotinic acid and related molecules on rutile TiO2(110) II.: XPS
- 2003
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Ingår i: Surf. Sci.. ; :544, s. 74-
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Tidskriftsartikel (refereegranskat)
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| 10. |
- O'Shea, JN, et al.
(författare)
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Hydrogen-bond induced surface core-level shift in pyridine carboxylic acids
- 2001
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Ingår i: SURFACE SCIENCE. - : ELSEVIER SCIENCE BV. - 0039-6028. ; 486:3, s. 157-166 Language: English
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Tidskriftsartikel (refereegranskat)abstract
- Intermolecular hydrogen bonding in thick films of pyridine carboxylic acids (isonicotinic; picolinic and bi-isonicotinic acid) evaporated onto rutile TiO2(1 1 0) has been investigated with X-ray photoelectron spectroscopy and X-ray absorption spectroscopy
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