radiation monitoring
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radiation monitoring - Leaderboard
radiation monitoring - Details
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21 questions
🇬🇧 | 🇬🇧 |
The use of radiation monitoring can.....? | Identify excess occupational exposure. |
Disadvantage of film badge? | No immediate indication of exposure all information is retrospective,*processing is required which may lead to Error,*the badges are prone to filter loss. |
Advantages of film badge? | Can measure the type &energy of radiation encountered,,,,simple,robust and relatively inexpensive |
What are the advantages of Film badges? | Provides a permanent record of dose received,,,may be checked and reassessed at a later date |
Film badge is the most common form of personal monitoring...... | Device currently in use |
Film badges they are worn ......? | Outside of the clothes, usually at the level of reproductive organ for 1-3 months before being processed. |
Film badges | They consist of a blue plastic frame containing a variety of different metal filters and a small radiograph films which react to radiation. |
Personal monitoring device? | Ionization chambers---optically stimulated luminescence (OSL) dosimeters |
PerSonal monitoring device | Thermoluminescent dosemeters (TLD) |
Personal monitoring device | -film badges |
2/personal monitoring | Requirements of personal dosimeter(*should be easy to carry)(*light weight)(*made of durable material)(*can detect wide range of doses even very small one) (*performance is not affected by weather condition or mechanical shock)(*Available and in expensive) |
1- Equipment monitoring | Dental x-ray machine should be monitored against leakage radiation, this can be achieved by using a film device that can be obtained from the manufacturers of the x-ray equipment. |
Radiation in monitoring can also be used to..... | Protect dental radiographer, It can be both equipment &and personnel |
(TLD) are used in what? | Personal monitoring of the whole body or the extremities |
What does (TLD)measure? | Skin dose from particular investigations |
What materials (TLD) contains? | Lithium fluoride (LiF, which absorb radiation and then release the energy in the form of light when heated |
The intensity of emitted light from (TLD) is proportional to? | Radiation energy absorbed originally |
(TLD) personal monitoring consist of what? | Yellow or orange Plastic holder. worn like the film badge for 1-3 months |
Advantage of (TLD) ? | *The lithium fluoride is re-usable *read--out measurements are easily automated and rapidly produced *suitable for a wide variety of tooth management |
Disadvantages of (TLD) | Read-out is destructive *only limited information provided on the type and energy of the radiation |
3rd an4th Disadvantage of (TLD)? | Dose gradient are not detectable. *relatively expensive |