scholarly journals Estimation of Radiation Doses to U.S. Military Test Participants from Nuclear Testing: A Comparison of Historical Film-Badge Measurements, Dose Reconstruction and Retrospective Biodosimetry

2019 ◽  
Vol 191 (4) ◽  
pp. 297 ◽  
Author(s):  
Steven L. Simon ◽  
Susan M. Bailey ◽  
Harold L. Beck ◽  
John D. Boice ◽  
André Bouville ◽  
...  
Keyword(s):  
Radiation Doses ◽  
Dose Reconstruction ◽  
Nuclear Testing ◽  
Historical Film ◽  
Film Badge

RETROSPECTIVE DOSE RECONSTRUCTION WITH MOBILE PHONES AND CHIP CARDS

2019 ◽  
Vol 186 (2-3) ◽  
pp. 206-210
Author(s):  
Daniela Ekendahl ◽  
Zina Čemusová ◽  
Libor Judas
Keyword(s):  
Mobile Phones ◽  
Reference Values ◽  
Dose Response ◽  
Radiation Source ◽  
Radiation Doses ◽  
Dose Reconstruction ◽  
High Radiation ◽  
Radioactive Materials ◽  
Luminescence Signal ◽  
Radiation Accidents

Abstract Mobile phones and common chip cards are very widespread items that almost everyone owns. They contain some radiation-sensitive materials that can be used for dosimetry based on stimulated luminescence. We investigated and compared reproducibility, dose response and fading of luminescence signal for the particular materials. Subsequently, we performed an experiment of a dose reconstruction using mobile phones and chip cards, which were fixed to a slab phantom and irradiated by a 137Cs radiation source in our laboratory. Doses obtained were compared with reference values. The materials investigated can be used for dosimetry in cases of serious radiation accidents or malevolent acts with radioactive materials, when it is extremely important to identify as quickly as possible individuals who received high-radiation doses.

scholarly journals RADIATION EXPOSURE DURING SPINE SURGERY USING C-ARM FLUOROSCOPY

2019 ◽  
Vol 27 (1) ◽  
pp. 46-49 ◽  
Author(s):  
Alexandre Fogaça Cristante ◽  
Fábio Barbieri ◽  
Almy Anacleto Rodrigues da Silva ◽  
José Claudio Dellamano
Keyword(s):  
Radiation Dose ◽  
Radiation Doses ◽  
Level Of Evidence ◽  
Exposed Site ◽  
Legal Limits ◽  
Film Badge ◽  
Total Radiation Dose ◽  
Exposed Workers ◽  
Occupationally Exposed ◽  
Auxiliary Personnel

ABSTRACT Objective: To evaluate the radiation dose received by staff in spine surgeries, including those who are not considered occupationally exposed workers. Methods: All spinal surgeries performed in the same department during a period of 12 months were evaluated with regard to the exposure of surgeons, scrub nurses, and auxiliary personnel working in the operating room to radiation from C-arm fluoroscopy. Radiation was measured by 15 film badge dosimeters placed on the professionals’ lapels, gloves, and room standardized sites. The films were analyzed in the dosimetry laboratory by collections per period. Results: During the 12 months, 81 spinal surgeries were performed by the same team, with surgical times ranging from 1 to 6 hours. The total radiation dose ranged from 0.16 mSv to 2.29 mSv depending on the dosimetry site. The most exposed site was the wrist of the main surgeon. Conclusion: The results showed that in the spinal surgeries in our setting, the radiation doses are low and within legal limits. Nevertheless, constant training of professionals is essential for radiation protection of medical staff and patients. Level of evidence I/b, exploratory cohort study.

The Employment of 197Hg EDTA in Kidney Scanning

1965 ◽  
Vol 05 (01) ◽  
pp. 56-67
Author(s):  
I. Pál ◽  
J. Földes ◽  
I. Krasznai
Keyword(s):  
Radiation Dose ◽  
Renal Cortex ◽  
Radiation Doses ◽  
Intravenous Pyelography ◽  
Edta Complex

SummaryThe authors investigated the use of 197Hg EDTA complex for kidney scanning. They describe the physical, biological and toxicological properties of the compound; its distribution within the organism, its excretion with urine and faeces and its uptake by the kidneys. The authors have established that the renal cortex selectively secretes the material which makes it suitable for kidney scanning. Some scintigrams of both normal and pathologic kidneys are presented.Finally a detailed discussion of the dosimetry is included. The radiation doses due to 197Hg EDTA are compared with those due to 203Hg-neohydrin and to intravenous pyelography. This comparison shows clearly that the use of 197Hg EDTA considerably decreases the radiation dose to the patient.

Radiopharmacology: Hazard or/and Benefit

1984 ◽  
Vol 23 (02) ◽  
pp. 87-91 ◽  
Author(s):  
K. Flemming
Keyword(s):  
Ionizing Radiation ◽  
Late Effects ◽  
Radiation Risk ◽  
Dose Effect ◽  
Radiation Hazard ◽  
Radiation Doses ◽  
Low Doses ◽  
Medical Radiology ◽  
Experimental Findings ◽  
In The Beginning

SummaryIn the beginning of medical radiology, only the benefit of ionizing radiation was obvious, and radiation was handled and applied generously. After late effects had become known, the radiation exposure was reduced to doses following which no such effects were found. Thus, it was assumed that one could obtain an optimal medical benefit without inducing any hazard. Later, due to experimental findings, hypotheses arose (linear dose-effect response, no time factor) which led to the opinion that even low and lowest radiation doses were relevant for the induction of late effects. A radiation fear grew, which was unintentionally strengthened by radiation protection decrees: even for low doses a radiation risk could be calculated. Therefore, it was believed that there could still exist a radiation hazard, and the radiation benefit remained in question. If, however, all presently known facts are considered, one must conclude that large radiation doses are hazardous and low doses are inefficient, whereas lowest doses have a biopositive effect. Ionizing radiation, therefore, may cause both, hazard as well as benefit. Which of the two effects prevails is determined by the level of dose.

Effect of low radiation doses on microbe population in space stations

2002 ◽  
Vol 8 (5-6) ◽  
pp. 58-61
Author(s):  
V.V. Tsetlin ◽  
◽  
E.A. Deshevaya ◽  
N.D. Novikova ◽  
N.A. Polikarpov ◽  
...  
Keyword(s):  
Radiation Doses ◽  
Low Radiation Doses ◽  
Microbe Population
Sign in / Sign up

Export Citation Format

Share Document