1
|
Modarai B, Haulon S, Ainsbury E, Böckler D, Vano-Carruana E, Dawson J, Farber M, Van Herzeele I, Hertault A, van Herwaarden J, Patel A, Wanhainen A, Weiss S, Esvs Guidelines Committee, Bastos Gonçalves F, Björck M, Chakfé N, de Borst GJ, Coscas R, Dias NV, Dick F, Hinchliffe RJ, Kakkos SK, Koncar IB, Kolh P, Lindholt JS, Trimarchi S, Tulamo R, Twine CP, Vermassen F, Document Reviewers, Bacher K, Brountzos E, Fanelli F, Fidalgo Domingos LA, Gargiulo M, Mani K, Mastracci TM, Maurel B, Morgan RA, Schneider P. Editor's Choice - European Society for Vascular Surgery (ESVS) 2023 Clinical Practice Guidelines on Radiation Safety. Eur J Vasc Endovasc Surg 2023; 65:171-222. [PMID: 36130680 DOI: 10.1016/j.ejvs.2022.09.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 09/15/2022] [Indexed: 01/24/2023]
|
2
|
Vanhavere F, Van Hoey O. Advances in personal dosimetry towards real-time dosimetry. RADIAT MEAS 2022. [DOI: 10.1016/j.radmeas.2022.106862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
3
|
Charubala CS, Annalakshmi O, Jakathamani S, Sankaran MR, Venkatraman B, Jose MT. Studies on pelletised lithium magnesium borate TL material for eye lens dosimetry. JOURNAL OF RADIOLOGICAL PROTECTION : OFFICIAL JOURNAL OF THE SOCIETY FOR RADIOLOGICAL PROTECTION 2019; 39:178-192. [PMID: 30602145 DOI: 10.1088/1361-6498/aafb7c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Recent epidemiological studies in various cohorts confirm that radiation induced cataract may occur at a threshold dose as low as 0.5 Gy. ICRP has recognised the higher radiosensitivity of eye lens and recommended to reduce annual eye lens dose limit from 150 to 20 mSv. Present dosimetry for eye lens is largely based on LiF based dosimeters. The present work is an attempt towards using near tissue equivalent lithium borate material namely lithium magnesium borate doped with terbium (LMB:Tb) in eye lens dosimetry. The material in powder form was synthesised using solid state sintering method and pelletised using poly tetra fluoro ethylene (PTFE) as binding agent. It was observed that 130 mg of 1 mm thick LMB:Tb pellet bound with PTFE showed stable glow curve structure and attractive dosimetric features in terms of sensitivity, fading, linearity, reusability etc. A proposal of 1.5 mm Teflon encapsulation corresponding to tissue equivalent thickness of 3 mm was put forward for an ideal dosimeter for the measurement in terms of Hp(3). Energy and angular dependence studies based on FLUKA simulations suggest a flat response for the prototype design. In addition to PTFE, various tissue equivalent encapsulations such as polyimide, polyamide 6 and PMMA were also evaluated using FLUKA code.
Collapse
Affiliation(s)
- C S Charubala
- Health Physics Division, Bhabha Atomic Research Centre, Kalpakkam-603102, Tamilnadu, India. Homi Bhabha National Institute, Indira Gandhi Center for Atomic Research, Kalpakkam-603102, Tamilnadu, India
| | | | | | | | | | | |
Collapse
|
4
|
Alajerami Y, Hashim S, Ramli A, Saleh M, Saripan M, Alzimami K, Min Ung N. Thermoluminescence responses of photon- and electron-irradiated lithium potassium borate co-doped with Cu+Mg or Ti+Mg. Appl Radiat Isot 2013; 78:21-5. [DOI: 10.1016/j.apradiso.2013.03.095] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Revised: 03/30/2013] [Accepted: 03/30/2013] [Indexed: 11/27/2022]
|
5
|
Penfold SN, Marcu L, Lawson JM, Asp J. Evaluation of physician eye lens doses during permanent seed implant brachytherapy for prostate cancer. JOURNAL OF RADIOLOGICAL PROTECTION : OFFICIAL JOURNAL OF THE SOCIETY FOR RADIOLOGICAL PROTECTION 2012; 32:339-347. [PMID: 22854245 DOI: 10.1088/0952-4746/32/3/339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Treatment of low grade prostate cancer with permanent implant of radioactive seeds has become one of the most common brachytherapy procedures in use today. The implant procedure is usually performed with fluoroscopy image guidance to ensure that the seeds are deployed in the planned locations. In this situation the physician performing the transperineal implant is required to be close to the fluoroscopy unit and dose to the eye lens may be of concern. In 1991 the International Commission on Radiological Protection (ICRP) provided a recommended dose limit of 150 mSv yr(-1) for occupational exposures to the lens of the eye. With more long term follow-up data, this limit was revised in 2011 to 20 mSv yr(-1). With this revised limit in mind, we have investigated the dose to the lens of the eye received by physicians during prostate brachytherapy seed implantation. By making an approximation of annual workload, we have related the dose received to the annual background dose. Through clinical and phantom measurements with thermoluminescent dosimeters, it was found that the excess dose to the physician's eye lens received for a conservative estimate of annual workload was never greater than 100% of the annual background dose.
Collapse
Affiliation(s)
- S N Penfold
- Department of Medical Physics, Royal Adelaide Hospital, Adelaide, SA 5000, Australia.
| | | | | | | |
Collapse
|
6
|
Knežević Ž, Beck N, Milković Đ, Miljanić S, Ranogajec-Komor M. Characterisation of RPL and TL dosimetry systems and comparison in medical dosimetry applications. RADIAT MEAS 2011. [DOI: 10.1016/j.radmeas.2011.05.042] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
7
|
Influence of dopants on the glow curve structure and energy dependence of LiF:Mg,Cu,Si detectors. RADIAT MEAS 2011. [DOI: 10.1016/j.radmeas.2011.01.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
8
|
Järvinen H, Buls N, Clerinx P, Miljanic S, Nikodemová D, Ranogajec-Komor M, Struelens L, d'Errico F. Comparison of double dosimetry algorithms for estimating the effective dose in occupational dosimetry of interventional radiology staff. RADIATION PROTECTION DOSIMETRY 2008; 131:80-86. [PMID: 18757899 DOI: 10.1093/rpd/ncn239] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
'Double dosimetry' i.e. measurement with two dosemeters, one located above the protective apron and one under has been recommended in interventional radiology (IR) to determine the effective dose to staff. Several algorithms have been developed to calculate the effective dose from the readings of the two dosemeters, but there is no international consensus on what is the best algorithm. In this work, a few of the most recently developed algorithms have been tested in typical IR conditions. The effective dose and personnel dosemeter readings were obtained experimentally by using thermoluminescent dosemeters in and on a Rando-Alderson phantom provided with a lead apron. In addition, the effective dose and personnel dosemeter readings were calculated by the Monte Carlo method for the same irradiation geometry. The results suggest that most of the algorithms overestimate effective dose in the selected IR conditions, but there is also a risk of underestimation by using the least conservative algorithms. Two of the algorithms seem to comply best with the chosen criteria of performance, i.e. no underestimation, minimum overestimation and close estimation of effective dose in typical IR conditions. However, it might not be justified to generalise the results. It is recommended that whenever personnel doses approach or exceed the dose limit, IR conditions should be further investigated and the possibility of over- or under-estimation of effective dose by the algorithm used should be considered.
Collapse
Affiliation(s)
- H Järvinen
- Radiation and Nuclear Safety Authority (STUK), Helsinki, Finland.
| | | | | | | | | | | | | | | |
Collapse
|
9
|
Kelemen A, Holovey V, Ignatovych M. Relative yields of radioluminescence and thermoluminescence in manganese- and silver-doped lithium tetraborate phosphors. RADIAT MEAS 2008. [DOI: 10.1016/j.radmeas.2007.11.083] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
10
|
Miller SD, Murphy MK. Technical performance of the Luxel Al(2)O(3):C optically stimulated luminescence dosemeter element at radiation oncology and nuclear accident dose levels. RADIATION PROTECTION DOSIMETRY 2007; 123:435-42. [PMID: 17164274 DOI: 10.1093/rpd/ncl500] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The dose ranges typical for radiation oncology and nuclear accident dosimetry are on the order of 2-70 Gy and 0.1-5 Gy, respectively. In terms of solid-state passive dosimetry, thermoluminescent (TL) materials historically have been used extensively for these two applications, with silver-halide, leuco-dye and BaFBr:Eu-based films being used on a more limited basis than TL for radiation oncology. This present work provides results on the performance of a film based on an aluminum oxide, Al(2)O(3):C, for these dosimetry applications, using the optically stimulated luminescence (OSL) readout method. There have been few investigations of Al(2)O(3):C performance at radiation oncology and nuclear accident dose levels, and these have included minimal dosimetric and environmental effects information. Based on investigations already published, the authors of this present study determined that overall improvements over film and TLDs for this Al(2)O(3):C OSL technology at radiation oncology and nuclear accident dose levels may include (1) a more tissue-equivalent response to photons compared to X-ray film, (2) higher sensitivity, (3) ability to reread dosemeters and (4) diagnostic capability using small-area imaging. The results of the present investigation indicate that additional favourable performance characteristics for the Al(2)O(3):C dosemeter are a wide dynamic range (0.001-100 Gy), a response insensitive to temperature and moisture over a wide range, negligible dose rate dependence, and minimal change in post-irradiation response. As a radiation detection medium, this OSL phosphor offers an assortment of dosimetry properties that will permit it to compete with current radiation detection technologies such as silver-halide, leuco-dye and photostimulable-phosphor-based films, as well as TLDs.
Collapse
Affiliation(s)
- Steven D Miller
- Battelle-Pacific Northwest Division, MSIN K3-55, P.O. Box 999, Richland, WA 99352, USA.
| | | |
Collapse
|
11
|
Miljanić S, Ranogajec-Komor M, Knezević Z, Stuhec M, Prokić M. Comparative study of LiF:Mg,Cu,Na,Si and Li2B4O7:Cu,Ag,P TL detectors. RADIATION PROTECTION DOSIMETRY 2006; 119:191-6. [PMID: 16709712 DOI: 10.1093/rpd/nci557] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Recently, two new types of 'tissue equivalent' thermoluminescent detectors (TLDs) have aroused attention: LiF:Mg,Cu,Na,Si and Li2B4O7:Cu,Ag,P. In this work the characteristics of both detectors were compared with the characteristics of the well-known type LiF:Mg,Ti detector, TLD-100. The following properties were investigated: the glow curve structures, relative sensitivity, batch homogeneity and uniformity, detection threshold, reproducibility of the response, linearity in the wide dose range and fading. Also, the energy dependence for medium and low energy X rays was determined in the range of mean energies between 33 and 116 keV. The results confirmed 'tissue equivalency' of both new types in the investigated range of photon energies. LiF:Mg,Cu,Na,Si detector has very high sensitivity (approximately 75 times higher than that of TLD-100) and is convenient for use in a very low range of doses. Li2B4O7:Cu,Ag,P detector shows some improvements in comparison with the previously prepared types of lithium borate. The most important is the five times higher sensitivity than that of TLD-100. This detector is also very promising, especially in medical dosimetry.
Collapse
Affiliation(s)
- S Miljanić
- Ruder Bosković Institute, Bijenicka 54, 10000 Zagreb, Croatia.
| | | | | | | | | |
Collapse
|
12
|
Zorko B, Miljanić S, Vekić B, Stuhec M, Gobec S, Ranogajec-Komor M. Intercomparison of dosimetry systems based on CaF2:Mn TL detectors. RADIATION PROTECTION DOSIMETRY 2006; 119:300-5. [PMID: 16735564 DOI: 10.1093/rpd/nci640] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
The responses of readings by the TL dosimetry system MR200 TL developed in-house and used at JSI and the TOLEDO TL system used at RBI are compared. Ten measurements at different doses ranging from 0.01 mSv to 5 Sv were carried out. A set of 36 dosemeters with three pellets of CaF2:Mn were irradiated in radiation fields of 137Cs and 60Co. Analysis of the measured results shows that at doses below 0.1 Sv, readers' outputs do not differ >5% from each other. At doses >1 Sv, the results obtained by the MR200 reader must be corrected with a known factor. Finally, the reproducibility of the results from the MR200 was tested.
Collapse
Affiliation(s)
- B Zorko
- Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia.
| | | | | | | | | | | |
Collapse
|
13
|
Suzuki S, Furui S, Kobayashi I, Yamauchi T, Kohtake H, Takeshita K, Takada K, Yamagishi M. Radiation Dose to Patients and Radiologists During Transcatheter Arterial Embolization: Comparison of a Digital Flat-Panel System and Conventional Unit. AJR Am J Roentgenol 2005; 185:855-9. [PMID: 16177400 DOI: 10.2214/ajr.04.1580] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The objective of our study was to evaluate the exposure doses to patients and radiologists during transcatheter arterial embolization (TAE) for hepatocellular carcinoma (HCC) using a new angiographic unit with a digital flat-panel system. SUBJECTS AND METHODS Doses were assessed for 24 procedures: 12 using a new unit with a digital flat-panel system and 12 using a conventional unit. Doses to patients' skin were evaluated with thermoluminescent dosimeters behind the left, middle, and right portions of the liver. The doses to the radiologists were measured by an electronic personal dosimeter placed on the chest outside a lead protector. The maximal skin doses to the patients and the dose equivalents, Hp(0.07), to the radiologists were compared between the two procedure groups with each angiographic unit. RESULTS For procedures with the new unit, the mean maximal skin dose to the patients was 284 +/- 127 (SD) mGy (range, 130-467 mGy), and Hp(0.07) to the radiologists was 62.8 +/- 17.4 muSv. For procedures with the conventional unit, the maximal skin dose to the patients was 1,068 +/- 439 mGy (range, 510-1,882 mGy), and Hp(0.07) to the radiologists was 68.4 +/- 25.7 muSv. The maximal skin dose to the patients was significantly lower with the new unit than with the conventional unit (p < 0.0005). There was no significant difference in the Hp(0.07) to the radiologists between the two procedure groups. CONCLUSION The new digital flat-panel system for angiographic imaging can reduce the radiation dose to patients' skin during TAE for HCC as compared with the conventional system.
Collapse
Affiliation(s)
- Shigeru Suzuki
- Department of Radiology, Teikyo University School of Medicine, 2-11-1, Kaga, Itabashi-ku, Tokyo 173-8605, Japan
| | | | | | | | | | | | | | | |
Collapse
|
14
|
Weis BK, Balshaw D, Barr JR, Brown D, Ellisman M, Lioy P, Omenn G, Potter JD, Smith MT, Sohn L, Suk WA, Sumner S, Swenberg J, Walt DR, Watkins S, Thompson C, Wilson SH. Personalized exposure assessment: promising approaches for human environmental health research. ENVIRONMENTAL HEALTH PERSPECTIVES 2005; 113:840-8. [PMID: 16002370 PMCID: PMC1257643 DOI: 10.1289/ehp.7651] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2004] [Accepted: 03/03/2005] [Indexed: 05/03/2023]
Abstract
New technologies and methods for assessing human exposure to chemicals, dietary and lifestyle factors, infectious agents, and other stressors provide an opportunity to extend the range of human health investigations and advance our understanding of the relationship between environmental exposure and disease. An ad hoc Committee on Environmental Exposure Technology Development was convened to identify new technologies and methods for deriving personalized exposure measurements for application to environmental health studies. The committee identified a "toolbox" of methods for measuring external (environmental) and internal (biologic) exposure and assessing human behaviors that influence the likelihood of exposure to environmental agents. The methods use environmental sensors, geographic information systems, biologic sensors, toxicogenomics, and body burden (biologic) measurements. We discuss each of the methods in relation to current use in human health research; specific gaps in the development, validation, and application of the methods are highlighted. We also present a conceptual framework for moving these technologies into use and acceptance by the scientific community. The framework focuses on understanding complex human diseases using an integrated approach to exposure assessment to define particular exposure-disease relationships and the interaction of genetic and environmental factors in disease occurrence. Improved methods for exposure assessment will result in better means of monitoring and targeting intervention and prevention programs.
Collapse
Affiliation(s)
- Brenda K Weis
- Division of Extramural Research and Training, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina 27709, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Ranogajec-Komor M. Thermoluminescence Dosimetry-Application in Environmental Monitoring. ACTA ACUST UNITED AC 2003. [DOI: 10.12950/rsm2002.2.2] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
|