Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Göran Rikner"'
Publikováno v:
Acta Oncologica. 34:959-964
The purpose of this work was to study displacement error and internal movements of the prostate during external beam radiotherapy. Verification films in the frontal (n = 194) and lateral (n = 64) portals were investigated in 14 patients treated with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::968068a01edff139bd0bbc3bb360384f
https://doi.org/10.3109/02841869509127212
https://doi.org/10.3109/02841869509127212
Publikováno v:
Acta Oncologica. 33:195-200
A phase II study is presented, which encompasses the period June 1987 until July 1993, and includes 53 patients with muscle-invasive bladder cancer T2-4b who, due to age and/or poor health (37 cases) or primarily extensive lesions (18 cases), were co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb59376155f8562ab176520ab745cf23
https://doi.org/10.3109/02841869409098405
https://doi.org/10.3109/02841869409098405
Portal dose image verification: formalism and application of the collapsed cone superposition method
Publikováno v:
Physics in medicine and biology. 47(24)
A formalism tailored for portal dose image verification is proposed to facilitate the comparison of calculated and measured portal dose distributions. Each portal image is converted into a dose proportional image and normalized to the reference beam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7cca372e7d220b21e96822390df6475
https://pubmed.ncbi.nlm.nih.gov/12539978
https://pubmed.ncbi.nlm.nih.gov/12539978
Publikováno v:
Oncology Reports.
We investigated the use of unencapsulated silicon semiconductor detectors for backscatter radiation detection. The results were compared with Monte Carlo (MC) calculations modelling the experimental set-up. A special diode was manufactured, which was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fef965f4ca9824cde5258cbe157b079b
https://doi.org/10.3892/or.8.1.181
https://doi.org/10.3892/or.8.1.181
Publikováno v:
Acta oncologica (Stockholm, Sweden). 34(7)
The purpose of the present study was to identify factors of importance in the planning of external beam radiotherapy of prostatic adenocarcinoma. Seven patients with urogenital cancers were planned for external radiotherapy of the prostate. Four diff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7f9de3f67c2bc25090c0b4b07154774
https://pubmed.ncbi.nlm.nih.gov/7492387
https://pubmed.ncbi.nlm.nih.gov/7492387
Publikováno v:
Physics in medicine and biology. 39(12)
This paper describes a dual-scattering-foil technique for flattening of radiotherapeutic charged particle beams. A theory for optimization of shapes and thicknesses of the scattering foils is presented. The result is a universal optimal secondary-sca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08ec6519faa5f7e82e5e76427728ae98
https://pubmed.ncbi.nlm.nih.gov/15551548
https://pubmed.ncbi.nlm.nih.gov/15551548
Publikováno v:
The Prostate. 24(1)
In this study, we have investigated the combined effect of estramustine treatment and external beam radiation on human prostatic cancer tumor cells (DU 145) transplanted in nude mice. The treatment was given according to two different schedules. In t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::50b502cdd7a4a0fe0a9eac1950fff00a
https://pubmed.ncbi.nlm.nih.gov/8290388
https://pubmed.ncbi.nlm.nih.gov/8290388
Publikováno v:
Nuclear Instruments and Methods in Physics Research. 217:501-505
The dose rate response was investigated for a small p-type silicon dose detector. Linearity was obtained up to 0.25 Gy per pulse at zero external bias. Saturation arose when the number of created electron-hole pairs was of the same magnitude as the d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d731bdb4261e685ad9df2e3704acfb65
https://doi.org/10.1016/0167-5087(83)90763-9
https://doi.org/10.1016/0167-5087(83)90763-9
Autor:
Göran Rikner, E Grusell
Publikováno v:
Physics in Medicine and Biology. 28:1261-1267
A p-type silicon radiation detector has been constructed and the effect of radiation damage on sensitivity and dose rate dependence has been studied. The dose rate dependence showed, in contrast to an n-type silicon detector, a linear dose rate respo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::978a1b2f1bfa3adf0ff6c9e636d658f2
https://doi.org/10.1088/0031-9155/28/11/006
https://doi.org/10.1088/0031-9155/28/11/006
Autor:
Göran Rikner, Erik Grusell
Publikováno v:
Medical Physics. 14:870-873
Semiconductor detectors based on p-type silicon and designed for in vivo measurement of entrance dose at the reference point from photon radiation fields, are described. To estimate the absorbed dose at the reference point from measurements with a th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f5f1bcd4a0c4d2cd963130c4f4ce297
https://doi.org/10.1118/1.596015
https://doi.org/10.1118/1.596015