Badge dosimeters

Recent Uses of Solid-Surface Luminescence Analysis in Environmental Analysis. Vo-Dinh and coworkers have shown very effectively how solid-surface luminescence techniques can be used for environmentally important samples (17-22). RTF has been used for the screening of ambient air particulate samples (17,18). In addition, RTF has been employed in conjunction with a ranking index to characterize polynuclear aromatic pollutants in environmental samples (19). A unique application of RTF reported recently is a personal dosimeter badge based on molecular diffusion and direct detection by RTF of polynuclear aromatic pollutants (20). The dosimeter is a pen-size device that does not require sample extraction prior to analysis. 

Dosimeter badges should be worn by personnel who work in the phosgene area. 

If a lead apron is not worn, the dosimeter badge should be worn at the waist or above, so thatthemeasured do se wtUbe representative of a whole-body exposure. If it is worn on theupper partofthebody, the do simeter will not be partially shielded by the X-ray table in a vertical beam exposure when holding a patient lying down. 

Bacharach Inc. Environmental Testing of Colorimetric Phosgene Dosimeter Badges, Pittsburgh, Pa. 

Contains one cartridge for Safe Phosgene Generation, 0.02 mol, one gas-tight adapter with tubing, one dosimeter badge + paper, and instructions. 

Dosimeter badges should be worn by personnel who work in the phosgene area. An emergency/evacuation plan should be established and frequent drills executed. 

Occupational radiation exposure to surgeons and medical/radiological staff is monitored by using personal dosimeter badges. These badges must be worn... 

Film badge A personal dosimeter containing photographic film that is darkened by ionizing radiation, used to evaluate the degree of ionizing radiation exposure in comparison to a control film. 

Adequate monitoring of exposure (film badges, dosimeters, etc.) ... 

A dosimeter is used to collect cumulative evidence of exposure to radiation and is worn as a badge. Dosimeters contain a thermoluminescent material such as lithium fluoride. Any incident radiation knocks electrons out of the flu-... 

Figure 3.17. Whole body badge (top) and finger dosimeters (bottom) issued to all trained analytical x-ray users at the US DOE s Ames Laboratory.

Personnel monitoring is required when an occupational worker is likely to receive an excess of 10% of the annual dose limit from radiation sources and for individuals entering high or very high radiation areas. Monitoring is accomplished by using film badges or thermoluminiscent dosimeters (TLD). 

A. Thermoluminescent dosimeter (TLD) badges used to provide a permanent record of the cumulative exposure to the whole body must be worn on the trunk (below the shoulders and above the hips) outside of clothing on the portion or area of the body nearest the radiation source. The dosimeter window must face out from the body. 

B. Pocket dosimeters provide direct-reading capability that allows the dosimeter to be read at any time while working in a radiation area to get an estimate of the exposure received. The pocket dosimeter shall be read and doses recorded daily in the utilization log. If, at any time, dosimeters read off scale, an emergency situation is considered to exist and the individual s TLD badge and the control badge must be submitted immediately for processing. 

All people engaged in radioactive work are required by law to be registered as radiation workers. Maximum permitted radiation doses for radiation workers are prescribed by the International Atomic Energy Agency and are monitored by film badges and pocket dosimeters or TLD. At all times the ALAR A principle (i.e., as low as reasonably attainable dose) applies to any person working with radioactivity. 

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