Radioactivity and radiation hazard evaluation in the environment of coastal Kerala, India

2007 ◽  
Vol 4 (3) ◽  
pp. 189 ◽  
Author(s):  
P.K. Shetty ◽  
Y. Narayana
Keyword(s):  
Radiation Hazard ◽  
Hazard Evaluation

Radiation Hazard Evaluation and Control in Hospitals

Radiology ◽  
1955 ◽  
Vol 65 (6) ◽  
pp. 892-902 ◽  
Author(s):  
G. Ferlazzo ◽  
T. Nicholson ◽  
A. Jacobson ◽  
M. Bushman
Keyword(s):  
Radiation Hazard ◽  
Hazard Evaluation ◽  
And Control

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.

A practical approach to laser hazard evaluation and risk assessment

1997 ◽  
Author(s):  
J. R. Tyrer ◽  
E. A. Raymond ◽  
L. H. Vassie ◽  
J. B. O’Hagant
Keyword(s):  
Risk Assessment ◽  
Practical Approach ◽  
Hazard Evaluation
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