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What is a thin fan-shaped x ray beam that rotates around the patient?
Wiki User
∙ 12y ago
CAT scan, or CT image
Wiki User
∙ 12y ago
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Which imaging technique uses a thin fan-shaped x-ray beam that rotates around the patient to produce cross-sectional views of the body?
Computed tomography (CT) uses a thin, fan-shaped x-ray beam that rotates around the patient to produce multiple cross-sectional views of the body (tom/omeans to cu, section or slice, and -graphy means the process of recording a picture or record.
What is A neutron star that rotates rapidly and gives out a beam radiation picked up as pulse?
If the beam is directed towards Earth, then it's called a pulsar.
How does a linear accelerator work?
The linear accelerator uses microwave technology (similar to that used for radar) to accelerate electrons in a part of the accelerator called the "wave guide", then allows these electrons to collide with a heavy metal target. As a result of the collisions, high-energy x-rays are scattered from the target. A portion of these x-rays is collected and then shaped to form a beam that matches the patient's tumor. The beam comes out of a part of the accelerator called a gantry which rotates around the patient. The patient lies on a moveable treatment couch and lasers are used to make sure the patient is in the proper position. Radiation can be delivered to the tumor from any angle by rotating the gantry and moving the treatment couch.
How do you describe a fulcrum?
A fulcrum is the point around which a balanced beam rotates. The two arms of the beam need not be equal. It is sufficient that the kg metres on one end equal the kg metres on the other end. It is in this use that it is often used as a lever to move heavy weights.
A neutron star that rotates rapidly and gives out a beam of radiation picked up as a pulse?
A pulsar. See related question
What position is when the patient is positioned prone and the X-ray beam comes into the patient from the right side and exits to the left.?
Ventral decubitus position.
What position is when the patient is positioned prone and the x-ray beam comes into the patient from the right side and exits to the left?
Ventral decubitus position.
Is the x-ray beam used in CT scanning attenuated by the patient's tissues?
yes
What is a raft beam?
The perimeter beam around the edge of a raft foundation.
What is a neutron star that rotates rapidly and gives out a beam of radiation picked up as a pulse?
This is the description of a pulsar. Use the links below to learn more.
What the different between x-ray view and projection?
view is from the beam while projaction is image from patient
How does the filtration of the x ray beam protect the patient?
Filtration is the process of increasing the mean energy of the x-ray beam by passing it through an absorber. The primary x-ray beam is polychromatic, that is, the beam contains a spectrum of photons of different energies and the average energy is one-half to one-third of the peak energy. Many of the photons produced are low energy and, if they escape through the glass window of the tube, they are absorbed by the first few centimeters of tissue and contribute nothing to the exposure of the film. Only the higher energy photons can penetrate the patient and reach the film to assist in making the radiograph The dose of radiation received by the patient is highest in the first few centimeters of tissue because of absorption of this low energy portion of the x-ray beam. The amount of scattered radiation is higher with an unfiltered beam because of the number of low energy photons. So, it is advantageous to both the patient and to the technician to use a filtered x-ray beam.
