Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Libor Judas"'
Autor:
Zina Čemusová, Daniela Ekendahl, Libor Judas, Michaela Kapuciánová, Petr Kuča, Zdeněk Vykydal
Publikováno v:
Radiation protection dosimetry. 198(17)
New operational quantities for external radiation exposure presented by the ICRU brought changes, which can affect the use of current dosemeters. Dosemeters calibrated in the old quantities should be tested, and the results obtained should be analyze
Autor:
Daniela, Ekendahl, Dana, Kurková, Libor, Judas, Zina, Čemusová, Dan, Reimitz, Marie, Kubínová, Michaela, Kapuciánová, Ivan, Hupka
Publikováno v:
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 178
In the aftermath of an orphan radiation source find, a complex retrospective dose reconstruction can be required to estimate doses of persons who were staying in the vicinity. In retrospective dose reconstructions based on luminescence measurements o
Publikováno v:
Radiation Measurements. 119:27-32
A historical radium (226Ra) needle was found in a building in Prague. The needle was concealed in a wall under a window frame. Ambient dose equivalent rate measured in close proximity to the frame reached up to 2 mSv/h. The place was located between
Autor:
Libor Judas, Dana Kurková
Publikováno v:
Radiation Physics and Chemistry. 146:26-33
Gamma and X-ray energy spectra measured with semiconductor detectors suffer from various distortions, one of them being so-called “tailing” caused by an incomplete charge collection. Using the Hecht equation, a response matrix of size 321 × 321
Autor:
Daniela Ekendahl, Zina Čemusová, Dan Reimitz, Michaela Kapuciánová, Marie Kubínová, Ivan Hupka, Dana Kurková, Libor Judas
Publikováno v:
Applied Radiation and Isotopes. 178:109947
In the aftermath of an orphan radiation source find, a complex retrospective dose reconstruction can be required to estimate doses of persons who were staying in the vicinity. In retrospective dose reconstructions based on luminescence measurements o
Autor:
Zdeněk Kohout, Stanislav Pospisil, Peter Rubovič, Jiří Hůlka, I. Stekl, Benedikt Bergmann, Daniela Ekendahl, Libor Judas
Publikováno v:
Radiation Measurements. 107:39-42
We present a concept of using Timepix detector for real-time and simultaneous measurements of various external dosimetry and operational quantities in X-ray/gamma fields with broad range of air kerma rates ranging from natural background levels to th
Publikováno v:
Radiation Measurements. 106:214-217
A new dosimetry system was developed in Japan (Chiyoda Technol Corporation). It has been used for purposes of continuous long-term personal dose monitoring of residents in the area affected by the Fukushima Daiichi nuclear plant accident. The system
Autor:
Libor Judas, Daniela Ekendahl
Publikováno v:
Radiation Measurements. 104:1-7
Dental ceramics are radiation sensitive materials and exhibit luminescent properties. Their samples can be potentially used for individual dose assessment in situations where retrospective dosimetry is required. In this work, we investigated dosimetr
Publikováno v:
Radiation Measurements. 85:93-98
Salt represents a radiation sensitive material that can be used for dosimetry. The objective of this experimental study was to test a low-cost salt dosemeter that was designed for personnel that are not radiation workers, but can operate in low proba
Autor:
Libor Judas, Dana Kurková
Publikováno v:
Radiation Measurements. 85:64-72
The aims of our work were: i) to measure selected normalized X-ray beam spectra with the commercially available cadmium telluride detector based spectrometry system; ii) to construct the approximate response matrix of the detector using a simple alge