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Wyszukujesz frazę "87.56.-v" wg kryterium: Temat


Wyświetlanie 1-8 z 8
Tytuł:
A study on radiation in operating room in Suleyman Demirel University
Autorzy:
Kara, Ü.
Kara, Y.
Akkurt, I.
Powiązania:
https://bibliotekanauki.pl/articles/1068182.pdf
Data publikacji:
2016-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.56.-v
87.55.Qr
Opis:
Despite the use of ionizing radiation and most of the harmful effects commonly known but not shown, insufficient attention has been observed for radiation protection. Radiation-exposed patients, physicians, health care team and staff should receive training in this field. The aim of this study is the doses of radiation in the operating room to identify and inform health personnel in radiation protection. Radiation exposure to operating room staff (doctor, nurse, medical staff, X-ray technician, anaesthesia technician, etc.) has been recognized as a necessary hazard in operating room. The purpose of our work is to determine operating room staff radiation doses for operating room to identify procedures associated with higher radiation doses, and to determine the effects of various parameters on staff doses. This study was performed at Suleyman Demirel University Medical Faculty Hospital. The procedure of study was performed in department of anaesthesia. We recorded that radiation doses data include all related imaging performed as part of department procedure. The distances were 100, 150, 250 cm from X-ray tube. It is important to understand that radiation affects medical staff in operating procedures. Use of low doses of ionizing radiation does not have knowledge of the long-term results but we need to be careful to conclude that use of radiological protection. During radiation protection, the maximum dose, even under the thick, the minimum degree of exposure to radiation is an important factor for our health. In addition, in the study, Philips BV-25 Gold is used as a brand fluoroscopic device. Device, 1.2-2 kV, 60-100 mA/s of doses between the values.
Źródło:
Acta Physica Polonica A; 2016, 130, 1; 401-403
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computed tomography routine examinations and the related risk of cancer
Autorzy:
Kara, Ü.
Tekın, H.
Akkurt, I.
Powiązania:
https://bibliotekanauki.pl/articles/1070443.pdf
Data publikacji:
2016-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.56.-v
87.55.Qr
Opis:
Computed tomography is an imaging process that uses x-ray equipment to create detailed scans, of areas inside the body. A picture created during computed tomography process shows the organs, bones, and other tissues in a thin "slice" of the body. Computed tomography is used in cancer diagnosis in many different ways to detect abnormal growths, helps to diagnose the presence of a tumor, provides information about the stage of cancer, determines exactly where to perform a biopsy procedure. The x-rays, gantry around the head, chest or another body part, helps to make a three-dimensional image that is much more detailed than pictures from other x-ray machines. Computed tomography imaging involves the use of x-rays, which are a form of ionizing radiation. Exposure to ionizing radiation is known to increase the risk of cancer. The aim of this study was to assess the radiation exposure received during computed tomography in a representative sample of patients.
Źródło:
Acta Physica Polonica A; 2016, 130, 1; 409-411
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Measurement of Gamma Dose in Radiotherapy Unit
Autorzy:
Akkurt, İ.
Kara, Ü.
Yildiz, M.
Kaya, V.
Powiązania:
https://bibliotekanauki.pl/articles/1402422.pdf
Data publikacji:
2015-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.56.-v
87.55.Qr
Opis:
Cancer is one of the most deadly diseases posing threat for our health. The most important method for eradicating of cancer cells is photoradiotherapy. Electrons accelerated by the accelerator are converted to photons in the process of bremsstrahlung. These photons are focused on diseased cells. Photon leaving accelerator head should assure a given dose intensity in cancer cells. Measuring of beam parameters at apparatus output is essential to determine the dose. In this study, Suleyman Demirel University research and education hospital in radiation Oncology department which has located at 18 MeV accelerator in energy gamma dose was measured.
Źródło:
Acta Physica Polonica A; 2015, 128, 2B; B-367-B-369
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Photoneutron Dose Measurement in Radiotherapy Room
Autorzy:
Kara, Ü.
Mesbahi, A.
Akkurt, I.
Powiązania:
https://bibliotekanauki.pl/articles/1402425.pdf
Data publikacji:
2015-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.56.-v
87.55.Qr
Opis:
Cancer is one of the main disease to threat for human health. Besides surgery and medical treatment (chemotherapy), radiotherapy is commonly used treatment method to kill cancer cell. For this method high energy photon is required. Clinic Lineer Accelerator (cLINAC) relatively lower energy than other LINAC has been used to obtain photon via bremsstrahlung processes. When accelerated electron beam impinges to the thin target bremsstrahlung occurs and photon can be created. Those photons can be focused on cancer cell and kill cancer. In order to focus photon beam collimator materials in LINAC head generally contains heavy elements is used and the interaction of bremsstrahlung photon with the such heavy nuclei the neutron can be produced inside the treatment rooms. The threshold of the neutron production for those materals is about 10 MeV. As the neutron is more dangerous than photon it is important to determine neutron dose during radiotherapy treatment. In this study neutron dose rate has been measured and simulated in radiotherapy room.
Źródło:
Acta Physica Polonica A; 2015, 128, 2B; B-372-B-374
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modern External Beam Radiotherapy Techniques - Intensity Modulated Radiotherapy
Autorzy:
Śladowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/1810259.pdf
Data publikacji:
2009-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.56.-v
87.56.J-
87.56.N-
87.56.jk
Opis:
External beam radiotherapy is a complex cancer radiotherapy technique involving three-dimensional conformal and intensity-modulated radiation therapy high-energy X-ray beam delivery to tumour volumes where dose distributions and treatment plan optimisation, including inverse planning, are applied. Examples of clinical treatment plans using 3D conformal and intensity-modulated radiotherapy techniques for patients with tumours located in the regions of head and neck (right tonsil carcinoma) and pelvis (prostate) were evaluated and compared. An intensity-modulated radiotherapy plan for a patient with arm cancer, untreatable with the 3D conformal radiation therapy technique, is also presented. Comparison of dose distributions showed that with the intensity-modulated radiotherapy technique dose homogeneity within the target volume was improved and dose to normal tissues and organ-at-risk structures reduced. Significant reductions in the mean and maximum doses to the spinal cord (head and neck) and rectum (prostate) were also achieved. Due to the geometrical issues, in all patients, improvement in dose distribution was evident with the intensity-modulated radiotherapy technique, especially for concave dose distributions.
Źródło:
Acta Physica Polonica A; 2009, 115, 2; 586-590
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modern Brachytherapy Techniques - Real-Time High Dose Rate Brachytherapy for Prostate Cancer
Autorzy:
Miszczak, D.
Powiązania:
https://bibliotekanauki.pl/articles/1810214.pdf
Data publikacji:
2009-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.53.Jw
87.55.de
87.56.-v
87.63.-d
Opis:
The "real time" technique of high dose rate brachytherapy of the prostate gland is described from the point of view of the medical physicist, as an illustration of modern radiotherapy techniques currently applied at the Centre of Oncology in Krakow. This technique, based on ultrasound imaging and on-line calculations of dose distribution around catheters inserted into the prostate volume in which a radioactive Ir-192 source is moved with the aid of an afterloading apparatus, is performed in operating-room conditions in close cooperation with the physician within stringent time limits.
Źródło:
Acta Physica Polonica A; 2009, 115, 2; 583-585
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prompt-Gamma Monitoring of Proton- and Carbon-Therapy. Combined Development of Time-of-Flight Collimated- and Compton-Cameras
Autorzy:
Dauvergne, D.
Freud, N.
Krimmer, J.
Létang, J.
Testa, E.
Powiązania:
https://bibliotekanauki.pl/articles/1402603.pdf
Data publikacji:
2015-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
29.40.Mc
07.85.Fv
87.53.Bn
87.56.Fc
87.56.-v
Opis:
Prompt-gamma imaging during ion therapy has proven its ability to control the ion range in real time. The achievable precision is of the order of the millimeter for a single spot in proton pencil beam scanning. Collimated gamma cameras have been developed, that are close to clinical application. The Compton cameras are also under development in various laboratories. Time of flight enables the reduction of the background due to other prompt radiations.
Źródło:
Acta Physica Polonica A; 2015, 127, 5; 1445-1448
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Radiopharmaceutical Production for PET Imaging in Poland
Autorzy:
Choiński, J.
Powiązania:
https://bibliotekanauki.pl/articles/1402629.pdf
Data publikacji:
2015-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.56.bd
87.57.uk
87.57.un
29.27.-a
41.75.Fr
87.56.bg
87.56.-v
Opis:
At the beginning of 2000 the PET technique was not available in Poland. The structure and organization of the Radiopharmaceuticals Production and Research Centre at the Heavy Ion Laboratory, University of Warsaw is described as an example of a production department. The present status of several radiopharmaceutical production departments is presented which should give a comprehensive outlook of radiopharmaceutical production capabilities in Poland over the next few years.
Źródło:
Acta Physica Polonica A; 2015, 127, 5; 1520-1522
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-8 z 8

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