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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.
What are the names of the parts on balance scale?
The parts of a balance scale include the beam, the pointer, the pivot point, the pan, and the base. The beam is the horizontal bar where the pans are attached, the pivot point is the central point where the beam rotates, and the pointer indicates balance.
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
The fix point of a lever is called a?
The fixed point of a lever is called a fulcrum. It is the point around which the lever rotates when a force is applied.
What is a raft beam?
The perimeter beam around the edge of a raft foundation.
How is a teeter totter a lever?
A teeter-totter is a lever because it is a long rigid object (beam) that rotates around a fixed point (fulcrum) to lift weights (people) on either end. The force applied on one end creates a rotation around the fulcrum causing the other end to move.
