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The box like device attached under the tube housing that allows the limited operator to vary the size of the radiation field is called a?
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∙ 13y ago
collimator
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∙ 13y ago
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Are radioisotope harmful or beneficial?
Both. Radioisotopes decay because they are atomically unstable. This can be used to advantage in medical treatment or diagnosis and in other forms of research or inspection. But radioactive decay releases ionizing radiation, and that is invariably harmful to living tissue. The problem presents as one of weighing the cost-benefit ratio of a given application. As just one example, radiation kills tissue, but it kills cancerous tissue much more readily than "regular" tissue. This makes radiation tratment by radioisotopes beneficial in cases where other options are limited.
Can rubies conduct?
Rubies, although good thermal conductors, are not naturally conductive of electricity, due to how electrons are tied up in the crystal lattice, not free to move as they are in metals. However sometimes impurities can enable them to conduct; also, it is possible to excite ruby with radiation and induce a limited electrical conductivity.
Why is non renewable energy limited?
non renewable energy is limited because non renewable resources take millions of years to replenish which is more than a human life span so non renewable resource are limited............................................................
What is the safe level of nuclear radiation?
The answer to the question depends more on what you consider safe than anything else. The real question is whether any given exposure has sufficient benefit to outweigh the amount of damage that might be done. In some cases, we need to do things that expose us to ionizing radiation in order to stay alive and be healthy, and the amount of exposure is so small that the chance of problems coming from it is to small to worry about. Any exposure to ionizing radiation can cause medical problems. There is no lower limit, beyond which it is absolutely safe. This includes not only nuclear radiation but other ionizing radiation, such as ultraviolet light, as well. For example, exposure to sunlight can cause skin cancer, and the chance of getting cancer is directly related to the amount of sunlight. The only way to eliminate the chance of getting cancer from sunlight absolutely is to eliminate the exposure absolutely. The problem with this is that we need some exposure to sunlight to ensure good health, so eliminating it is more dangerous than limited exposure. Similarly, exposure to beta or gamma radiation can cause medical problems, and the only way to eliminate these problems being caused by such radiation is to eliminate the exposure. The problem with eliminating the exposure is that it cannot be done. About one out of every 9000 potassium atoms is radioactive, and will give off gamma or beta radiation. But potassium is also a requirement for life, as a chemical, and eliminating it would quickly cause a person to sicken and die. We put smoke detectors in our houses, because early detection of fires saves lives. The smoke detectors usually contain radioactive substances, but the increased threat from them is negligible compared to the increased threat from fire without them. We are exposed to nuclear radiation in medical practice that is intended to benefit our health and extend our lives. So to answer the question precisely, we would have to say that there is no absolutely safe level of radiation greater than none at all. What we have to do is assess each potential source of radiation and ask whether the risk of exposure is small enough that the actual exposure is overall beneficial. Since the question of whether something is safe cannot be answered without some subjective evaluation, I will tell you my own belief. I believe that we are all subjected to as much radiation as we need, and probably more, already, assuming we use sunscreen or cover ourselves well. If any further exposure is to be done, there should be some very good, specific reason for it. So, the safe limit for further exposure is zero.
What is the name given to type of resources that have limited source?
Renewable energy sources. Whereas resources that have a limited source are called fossil fuels.
Where is the thermostat housing on a 1988 Jeep Wagoneer Limited located?
Follow the upper radiator back to the engine. The hose is attached to the thermostat housing on the engine side.
When was Eastern Housing Limited created?
Eastern Housing Limited was created in 1965.
Where is the theromostat on a 88 Jeep Cherokee limited?
The thermostat is quite easy to locate. It is at the top of the engine at the front. You will see a radiator hose attached to the engine at this location. The thermostat is in the housing it attaches to.
Which Boolean operator is used when a search is limited to All of the words?
and
Are X-rays bad?
They have a limited amount of radiation, but this radiation is not serious and will likely cause no harm.
Is momentum hamiltonian operator is hermitian operator?
The hamiltonian operator is the observable corresponding to the total energy of the system. As with all observables it is given by a hermitian or self adjoint operator. This is true whether the hamiltonian is limited to momentum or contains potential.
Where can you find the Crankshaft position sensor on your 2000 3.1TD Grand Cherokee Limited?
behind engine , on top of transmission housing , slightly to the right side.There is some 30cm of cable attached to sensor and than a connector to instalation.
What is the full form of hdil?
Housing development infrastructure limited
What actors and actresses appeared in A Race with the Limited - 1914?
The cast of A Race with the Limited - 1914 includes: Billie Rhodes as Ruth - a Telegraph Operator
Do cactuses absorb radiation?
Yes cactus do absorb radiation. But they do it for a limited range.
What rhymes constallations?
The list includes, but is not limited to . . .AbbrogationBifurcationConcatenationDeclinationExcitationFumigationGestationHesitationIonizationJustification-LaminationModulationNotationOvulationPlagiarizationQuantizationRationalizationSatiationTitrationUlulationgood-VibrationWesternizationX-radiation--
What are point sources?
A point source is a concentrated source of radiation or pollution that has a limited area.
