radiation monitoring
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radiation monitoring - Marcador
radiation monitoring - Detalles
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21 preguntas
| 🇬🇧 | 🇬🇧 |
| 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 |