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Sankowska M, Bilski P, Marczewska B. Thermal enhancement of the intensity of fluorescent nuclear tracks in lithium fluoride crystals. RADIAT MEAS 2022. [DOI: 10.1016/j.radmeas.2022.106845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Mrozik A, Bilski P, Gieszczyk W, Zorenko Y, Gorbenko V. Investigations of the influence of Am-241 photons on the measured alpha particle response of luminescent materials. RADIAT MEAS 2020. [DOI: 10.1016/j.radmeas.2020.106331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sądel M, Bilski P, Sankowska M, Gajewski J, Swakoń J, Horwacik T, Nowak T, Kłosowski M. Two-dimensional radiation dosimetry based on LiMgPO4 powder embedded into silicone elastomer matrix. RADIAT MEAS 2020. [DOI: 10.1016/j.radmeas.2020.106255] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Belozerova NM, Bilski P, Jarek M, Jenczyk J, Kichanov SE, Kozlenko DP, Mielcarek J, Pajzderska A, Wąsicki J. Exploring the molecular reorientations in amorphous rosuvastatin calcium. RSC Adv 2020; 10:33585-33594. [PMID: 35515032 PMCID: PMC9056734 DOI: 10.1039/d0ra06108e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 08/29/2020] [Indexed: 01/11/2023] Open
Abstract
Molecular reorientations in rosuvastatin calcium, a drug that is widely used to prevent cardiovascular disease, were explored thoroughly by means of solid state nuclear magnetic resonance (1H and 13C NMR) combined with calculations of steric hindrances. The experimental results reveal rich internal reorientational dynamics. All relaxation processes were tested in a broad range of temperatures and described in terms of their type and the associated energy barriers. The internal molecular mobility of rosuvastatin calcium can be associated with the reorientational dynamics of four methyl groups, accompanied by reorientation of the isopropyl group. The energy barriers of methyl and isopropyl group reorientation depended on the type of E/Z isomers, while the water content also had a strong influence on the dynamics of the isopropyl group. In the paper, a consistent picture of the molecular dynamics is provided, facilitating our understanding of molecular mobility in this important pharmaceutical solid. Molecular reorientations in rosuvastatin calcium, a drug that is widely used to prevent cardiovascular disease, were explored thoroughly by means of solid state nuclear magnetic resonance (1H, 13C NMR) combined with calculations of steric hindrances.![]()
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Affiliation(s)
- N. M. Belozerova
- Frank Laboratory of Neutron Physics
- Joint Institute for Nuclear Research
- Russia
| | - P. Bilski
- Frank Laboratory of Neutron Physics
- Joint Institute for Nuclear Research
- Russia
- Faculty of Physics
- Adam Mickiewicz University
| | - M. Jarek
- NanoBioMedical Centre
- Adam Mickiewicz University
- 61-614 Poznań
- Poland
| | - J. Jenczyk
- NanoBioMedical Centre
- Adam Mickiewicz University
- 61-614 Poznań
- Poland
| | - S. E. Kichanov
- Frank Laboratory of Neutron Physics
- Joint Institute for Nuclear Research
- Russia
| | - D. P. Kozlenko
- Frank Laboratory of Neutron Physics
- Joint Institute for Nuclear Research
- Russia
| | - J. Mielcarek
- Department of Inorganics and Analytical Chemistry
- Poznań University of Medical Sciences
- 60-780 Poznań
- Poland
| | - A. Pajzderska
- Faculty of Physics
- Adam Mickiewicz University
- 61-614 Poznań
- Poland
| | - J. Wąsicki
- Faculty of Physics
- Adam Mickiewicz University
- 61-614 Poznań
- Poland
- NanoBioMedical Centre
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Sądel M, Bilski P, Kłosowski M. OPTICALLY STIMULATED LUMINESCENCE OF LiF:Mg,Cu,P POWDER-INFLUENCE OF THERMAL TREATMENT. Radiat Prot Dosimetry 2019; 186:488-495. [PMID: 31330019 DOI: 10.1093/rpd/ncz055] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 03/14/2019] [Accepted: 03/20/2019] [Indexed: 06/10/2023]
Abstract
It was recently found that LiF:Mg,Cu,P, which is a very well-known thermoluminescent (TL) material, exhibits also quite substantial optically stimulated luminescence (OSL). In the present work a study on the influence of thermal treatment on the LiF:Mg,Cu,P OSL intensity has been performed. The results revealed that the well-known 'gold standard' of 240°C annealing is not appropriate for OSL measurements. The annealing at lower temperatures produced significantly higher OSL intensity. The highest enhancement of the OSL signal, reaching 95% (compared to the initial signal after standard annealing at 240°C/10 min) was obtained after annealing at about 190-200°C/30 min. The OSL emission spectrum of LiF:Mg,Cu,P was also measured and found to be peaked at 360 nm.
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Affiliation(s)
- M Sądel
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Krakow, Poland
| | - P Bilski
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Krakow, Poland
| | - M Kłosowski
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Krakow, Poland
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Marczewska B, Sas-Bieniarz A, Bilski P, Gieszczyk W, Kłosowski M, Sądel M. OSL and RL of LiMgPO4 crystals doped with rare earth elements. RADIAT MEAS 2019. [DOI: 10.1016/j.radmeas.2019.106205] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Witkiewicz-Lukaszek S, Gorbenko V, Zorenko T, Zorenko Y, Gieszczyk W, Mrozik A, Bilski P. Composite thermoluminescent detectors based on the Ce3+ doped LuAG/YAG and YAG/LuAG epitaxial structures. RADIAT MEAS 2019. [DOI: 10.1016/j.radmeas.2019.106124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Gieszczyk W, Bilski P, Kłosowski M, Mrozik A, Zorenko T, Witkiewicz S, Zorenko Y. Luminescent properties of Tb and Eu activated AxB1-xAlO3 (A = Y, Lu, Gd; B = Lu; x = 0, 0.5, 1) mixed oxides crystals prepared by micro-pulling-down method. RADIAT MEAS 2019. [DOI: 10.1016/j.radmeas.2019.106140] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Olko P, Bilski P, Kopec R. THE 13TH SYMPOSIUM ON NEUTRON AND ION DOSIMETRY NEUDOS-13. Radiat Prot Dosimetry 2018; 180:1-2. [PMID: 29873788 DOI: 10.1093/rpd/ncy087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- P Olko
- Institute of Nuclear Physics Polish Academy of Sciences (IFJ PAN), Kraków, Poland
| | - P Bilski
- Institute of Nuclear Physics Polish Academy of Sciences (IFJ PAN), Kraków, Poland
| | - R Kopec
- Institute of Nuclear Physics Polish Academy of Sciences (IFJ PAN), Kraków, Poland
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Bilski P, Marczewska B, Gieszczyk W, Klosowski M, Nowak T, Naruszewicz M. LITHIUM FLUORIDE CRYSTALS AS FLUORESCENT NUCLEAR TRACK DETECTORS. Radiat Prot Dosimetry 2018; 178:337-340. [PMID: 28981759 DOI: 10.1093/rpd/ncx116] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Accepted: 08/03/2017] [Indexed: 06/07/2023]
Abstract
Radiophotoluminescence signal of LiF crystals was found to be sufficiently strong to visualize tracks of a single charged particle. This was achieved with a wide-field fluorescent microscope equipped with a ×100 objective and LiF single crystals grown with the Czochralski method at IFJ PAN. The tracks of alpha particles, protons, as well as products of 6Li(n,α)3H reaction with thermal neutrons (moderated Pu/Be source), were observed. These encouraging results are the first steps towards practical use of LiF as fluorescent nuclear track detectors. The most promising dosimetric application seems to be neutron measurements.
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Affiliation(s)
- P Bilski
- Institute of Nuclear Physics, Polish Academy of Sciences (IFJ PAN), Radzikowskiego 152, 31 342 Kraków, Poland
| | - B Marczewska
- Institute of Nuclear Physics, Polish Academy of Sciences (IFJ PAN), Radzikowskiego 152, 31 342 Kraków, Poland
| | - W Gieszczyk
- Institute of Nuclear Physics, Polish Academy of Sciences (IFJ PAN), Radzikowskiego 152, 31 342 Kraków, Poland
| | - M Klosowski
- Institute of Nuclear Physics, Polish Academy of Sciences (IFJ PAN), Radzikowskiego 152, 31 342 Kraków, Poland
| | - T Nowak
- Institute of Nuclear Physics, Polish Academy of Sciences (IFJ PAN), Radzikowskiego 152, 31 342 Kraków, Poland
| | - M Naruszewicz
- Institute of Nuclear Physics, Polish Academy of Sciences (IFJ PAN), Radzikowskiego 152, 31 342 Kraków, Poland
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Marczewska B, Bilski P, Nowak T, Gieszczyk W, Klosowski M. IMAGING OF PROTON BRAGG PEAKS IN LiF. Radiat Prot Dosimetry 2018; 178:333-336. [PMID: 28981828 DOI: 10.1093/rpd/ncx115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 08/16/2017] [Indexed: 06/07/2023]
Abstract
Lithium fluoride (LiF) is one of the most common thermoluminescent phosphors routinely used in radiation protection services. Another advantageous property of LiF is radiophotoluminescence, whose occurs after its irradiation due to the creation of color centers. Excitation of LiF samples with a blue light causes the emission of photoluminescence, which spectrum consists of two peaks at ~520 and ~670 nm. The work was focused on imaging of Bragg peaks of proton beams routinely applied at the proton eye radiotherapy facility operating at the Institute of Nuclear Physics Polish Academy of Sciences (IFJ PAN) in Krakow by the measurement of the fluorescence light in LiF crystals excited with a 445 nm blue light after their previous irradiation with the proton beams of energies of 28, 30, 40 and 50 MeV. The range of proton beams in LiF crystals for different energies was calculated by Monte Carlo simulations.
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Affiliation(s)
- B Marczewska
- Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Krakow, Poland
| | - P Bilski
- Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Krakow, Poland
| | - T Nowak
- Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Krakow, Poland
| | - W Gieszczyk
- Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Krakow, Poland
| | - M Klosowski
- Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Krakow, Poland
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Gieszczyk W, Bilski P. A simplified numerical approach to non-radiation induced high-temperature signals in thermoluminescence. GlowVIEW – a useful tool for a multiple glow-curve analysis. RADIAT MEAS 2017. [DOI: 10.1016/j.radmeas.2017.09.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kulig D, Gieszczyk W, Marczewska B, Bilski P, Kłosowski M, Malthez A. Comparative studies on OSL properties of LiMgPO4:Tb,B powders and crystals. RADIAT MEAS 2017. [DOI: 10.1016/j.radmeas.2017.04.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zorenko Y, Gorbenko V, Zorenko T, Banaszak A, Mosińska L, Paprocki K, Zhydachevskii Y, Suchocki A, Bilski P, Twardak A, Fedorov A. Luminescent and scintillation properties of YAG:Dy and YAG:Dy,Ce single crystalline films. RADIAT MEAS 2016. [DOI: 10.1016/j.radmeas.2016.02.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Gorbenko V, Zorenko Y, Zorenko T, Voznyak T, Paprocki K, Fabisiak K, Fedorov A, Bilski P, Twardak A, Zhusupkalieva G. Luminescent and scintillation properties of the Pr3+ doped single crystalline films of Lu3Al5−xGaxO12 garnet. RADIAT MEAS 2016. [DOI: 10.1016/j.radmeas.2016.02.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bilski P, Matthiä D, Berger T. Influence of cosmic radiation spectrum and its variation on the relative efficiency of LiF thermoluminescent detectors – Calculations and measurements. RADIAT MEAS 2016. [DOI: 10.1016/j.radmeas.2016.02.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sądel M, Bilski P, Swakoń J, Weber A. Evaluation of the relative TL efficiency of the thermoluminescent detectors to heavy charged particles. Radiat Prot Dosimetry 2016; 168:27-32. [PMID: 25656042 DOI: 10.1093/rpd/ncv003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 12/31/2014] [Indexed: 06/04/2023]
Abstract
The relative thermoluminescence efficiency, η, is in general not constant but depends on ionisation density. Evaluation of the η is therefore important especially for correct interpretation of measurements of densely ionising radiation doses in proton radiotherapy or in space dosimetry. The correct determination of the η is not always straightforward especially when more strongly ionising radiation is to be measured. In the present work, the process of calculation of the η based on two kinds of heavy charged particles was studied. Several factors which may influence the value of the η and their significance for the final result were discussed. These include for example non-uniform deposition of the dose within the detector volume, self-attenuation of thermoluminescent light, choice of the reference radiation, etc. The presented approach was applied to the experimental results of η of LiF:Mg,Ti detectors irradiated with two kinds of heavy charged particles, protons and alpha particles.
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Affiliation(s)
- M Sądel
- Institute of Nuclear Physics Polish Academy of Sciences, Krakow PL-31342, Poland
| | - P Bilski
- Institute of Nuclear Physics Polish Academy of Sciences, Krakow PL-31342, Poland
| | - J Swakoń
- Institute of Nuclear Physics Polish Academy of Sciences, Krakow PL-31342, Poland
| | - A Weber
- Charite-Universtatsmedizin Berlin, Berlin Protonen am Helmholtz-Zentrum Berlin, Hahn-Meitner-Platz 1, Berlin 14109, Germany
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Sądel M, Bilski P, Swakoń J, Rydygier M, Horwacik T, Weber A. Comparative investigations of the relative thermoluminescent efficiency of LiF detectors to protons at different proton therapy facilities. RADIAT MEAS 2015. [DOI: 10.1016/j.radmeas.2015.07.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Wróbel D, Bilski P, Marczewska B, Mrozik A, Kłosowski M. Characterization of the Risø TL/OSL DA-20 reader for application in TL dosimetry. RADIAT MEAS 2015. [DOI: 10.1016/j.radmeas.2014.12.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Mrozik A, Bilski P, Marczewska B, Obryk B, Hodyr K, Gieszczyk W. Radio-photoluminescence of highly irradiated Lif:Mg,Ti and Lif:Mg,Cu,P detectors. RADIAT MEAS 2014. [DOI: 10.1016/j.radmeas.2014.05.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Bassinet C, Woda C, Bortolin E, Della Monaca S, Fattibene P, Quattrini M, Bulanek B, Ekendahl D, Burbidge C, Cauwels V, Kouroukla E, Geber-Bergstrand T, Mrozik A, Marczewska B, Bilski P, Sholom S, McKeever S, Smith R, Veronese I, Galli A, Panzeri L, Martini M. Retrospective radiation dosimetry using OSL of electronic components: Results of an inter-laboratory comparison. RADIAT MEAS 2014. [DOI: 10.1016/j.radmeas.2014.03.016] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Mrozik A, Marczewska B, Bilski P, Kłosowski M. Investigation of thermoluminescence properties of mobile phone screen displays as dosimeters for accidental dosimetry. Radiat Phys Chem Oxf Engl 1993 2014. [DOI: 10.1016/j.radphyschem.2014.01.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Twardak A, Bilski P, Marczewska B, Lee J, Kim J, Gieszczyk W, Mrozik A, Sądel M, Wróbel D. Properties of lithium aluminate for application as an OSL dosimeter. Radiat Phys Chem Oxf Engl 1993 2014. [DOI: 10.1016/j.radphyschem.2014.05.046] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
Thermoluminescence (TL) and optically stimulated luminescence (OSL) are the well-known phenomena used for passive methods of dose measurements. TL and OSL detectors are frequently used in the dosimetry of cosmic radiation in space and of particle radiotherapy beams. However, the relative TL/OSL efficiency, which is defined as a ratio of the emitted light intensity per unit dose for a given radiation type, to the same quantity for the reference gamma radiation is not constant and depends on radiation type and energy. In the present work several types of TL and OSL dosimetric materials, including lithium fluoride (LiF), aluminium oxide, beryllium oxide and lithium aluminate, were tested with protons. The measurements were realised exploiting the 60-MeV proton beam of the AIC-144 cyclotron in the Proton Eye Radiotherapy Facility at Institute of Nuclear Physics (IFJ PAN). The influence of proton energy on the relative efficiency and other TL/OSL characteristics of the studied detector types was presented.
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Affiliation(s)
- M Sądel
- Institute of Nuclear Physics, Radzikowskiego 152, Krakow 31-342, Poland
| | - P Bilski
- Institute of Nuclear Physics, Radzikowskiego 152, Krakow 31-342, Poland
| | - J Swakoń
- Institute of Nuclear Physics, Radzikowskiego 152, Krakow 31-342, Poland
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Sądel M, Bilski P, Swakoń J, Ptaszkiewicz M, Boberek M, Olko P. Relative thermoluminescent efficiency of LiF detectors for proton radiation: Batch variability and energy dependence. RADIAT MEAS 2013. [DOI: 10.1016/j.radmeas.2013.01.052] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Bilski P, Berger T, Hajek M, Twardak A, Koerner C, Reitz G. Thermoluminescence fading studies: Implications for long-duration space measurements in Low Earth Orbit. RADIAT MEAS 2013. [DOI: 10.1016/j.radmeas.2013.01.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Horowitz YS, Siboni D, Oster L, Livingstone J, Guatelli S, Rosenfeld A, Emfietzoglou D, Bilski P, Obryk B. Alpha particle and proton relative thermoluminescence efficiencies in LiF:Mg,Cu,P:is track structure theory up to the task? Radiat Prot Dosimetry 2012; 150:359-374. [PMID: 22042968 DOI: 10.1093/rpd/ncr406] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Low-energy alpha particle and proton heavy charged particle (HCP) relative thermoluminescence (TL) efficiencies are calculated for the major dosimetric glow peak in LiF:Mg,Cu,P (MCP-N) in the framework of track structure theory (TST). The calculations employ previously published TRIPOS-E Monte Carlo track segment values of the radial dose in condensed phase LiF calculated at the Instituto National de Investigaciones Nucleares (Mexico) and experimentally measured normalised (60)Co gamma-induced TL dose-response functions, f(D), carried out at the Institute of Nuclear Physics (Poland). The motivation for the calculations is to test the validity of TST in a TL system in which f(D) is not supralinear (f(D) >1) and is not significantly dependent on photon energy contrary to the behaviour of the dose-response of composite peak 5 in the glow curve of LiF:Mg,Ti (TLD-100). The calculated HCP relative efficiencies in LiF:MCP-N are 23-87% lower than the experimentally measured values, indicating a weakness in the major premise of TST which exclusively relates HCP effects to the radiation action of the secondary electrons liberated by the HCP slowing down. However, an analysis of the uncertainties involved in the TST calculations and experiments (i.e. experimental measurement of f(D) at high levels of dose, sample light self-absorption and accuracy in the estimation of D(r), especially towards the end of the HCP track) indicate that these may be too large to enable a definite conclusion. More accurate estimation of sample light self-absorption, improved measurements of f(D) and full-track Monte Carlo calculations of D(r) incorporating improvements of the low-energy electron transport are indicated in order to reduce uncertainties and enable a final conclusion.
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Affiliation(s)
- Y S Horowitz
- Physics Department, Ben Gurion University of the Negev, Beersheva, Israel.
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Obryk B, Glaser M, Mandić I, Bilski P, Olko P, Sas-Bieniarz A. Response of various types of lithium fluoride MCP detectors to high and ultra-high thermal neutron doses. RADIAT MEAS 2011. [DOI: 10.1016/j.radmeas.2011.06.050] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Khoury H, Obryk B, Barros V, Guzzo P, Ferreira C, Bilski P, Olko P. Response of TL lithium fluoride detectors (MTS) to high gamma radiation doses. RADIAT MEAS 2011. [DOI: 10.1016/j.radmeas.2011.04.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kichanov S, Kozlenko D, Bilski P, Wąsicki J, Nawrocik W, Medek A, Hancock B, Lukin E, Lathe C, Dubrovinsky L, Savenko B. The polymorphic phase transformations in resorcinol at high pressure. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.09.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Bilski P, Berger T, Hajek M, Reitz G. Comparison of the response of various TLDs to cosmic radiation and ion beams: Current results of the HAMLET project. RADIAT MEAS 2011. [DOI: 10.1016/j.radmeas.2011.03.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Olko P, Bilski P, Gieszczyk W, Grzanka L, Obryk B. Microdosimetric analysis of response of LiF:Mg,Cu,P (MCP-N) TL detectors for alpha-particles and ultra-high doses of gamma-rays. RADIAT MEAS 2011. [DOI: 10.1016/j.radmeas.2011.05.055] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Pohorecki W, Kuc T, Ostachowicz B, Bilski P. Novel methods of tritium production rate measurements in HCLL TBM mock-up experiment with liquid scintillation technique. Fusion Engineering and Design 2011. [DOI: 10.1016/j.fusengdes.2011.01.063] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Gualdrini G, Mariotti F, Wach S, Bilski P, Denoziere M, Daures J, Bordy JM, Ferrari P, Monteventi F, Fantuzzi E. Eye lens dosimetry: task 2 within the ORAMED project. Radiat Prot Dosimetry 2011; 144:473-477. [PMID: 21335629 DOI: 10.1093/rpd/ncr011] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The ORAMED (Optimization of RAdiation protection for MEDical staff) project is funded by EU-EURATOM within the 7° Framework Programme. Task 2 of the project is devoted to study the dose to the eye lens. The study was subdivided into various topics, starting from a critical revision of the operational quantity H(p)(3), with the corresponding proposal of a cylindrical phantom simulating as best as possible the head in which the eyes are located, the production of a complete set of air kerma to dose equivalent conversion coefficients for photons from 10 keV to 10 MeV, and finally, the optimisation of the design of a personal dosemeter well suited to respond in terms of H(p)(3). The paper presents some preliminary results.
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Affiliation(s)
- G Gualdrini
- ENEA-IRP Radiation Protection Institute, Via dei Colli 16, 40136 Bologna, Italy.
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Mandowska E, Bilski P, Obryk B, Mandowski A, Olko P, Kim J. Spectrally resolved thermoluminescence of highly irradiated LiF:Mg,Cu,P detectors. RADIAT MEAS 2010. [DOI: 10.1016/j.radmeas.2009.11.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ptaszkiewicz M, Weber A, Swakon J, Klosowski M, Olko P, Bilski P, Michalec B, Czopyk L. Dose perturbation behind tantalum clips in ocular proton therapy. RADIAT MEAS 2010. [DOI: 10.1016/j.radmeas.2010.01.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Obryk B, Bilski P, Glaser M, Fuerstner M, Budzanowski M, Olko P, Pajor A. The response of TL lithium fluoride detectors to 24 GeV/c protons for doses ranging up to 1 MGy. RADIAT MEAS 2010. [DOI: 10.1016/j.radmeas.2009.12.041] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Wasicki J, Kozlenko D, Pankov S, Bilski P, Pajzderska A, Hancock B, Medek A, Nawrocik W, Savenko B. Search for Polymorphic Phase Transformations in Chlorpropamide Form-A at High Pressures. J Pharm Sci 2009; 98:1426-37. [DOI: 10.1002/jps.21471] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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