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Total filtration for an xray beam is 2.5mm of lead or aluminum?
Wiki User
∙ 11y ago
Aluminium
Wiki User
∙ 11y ago
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What is the velocity of straight beam ultrasound in aluminum?
longitudinal velocity of aluminum is .25 shear velocity is .12
I-beam span tables?
the beam has a total volume of 60ft 3 what is the maximium horizontal gap that the beam can span
What is the total volume of a 60ft beam?
The answer depends on the cross-sectional area of the beam.
What is the difference between a hard beam and a soft beam?
A hard beam is one that contains a greater number of high energy photons than low energy photons.A soft beam is one that contains a greater number of low energy photons that high energy photons.During the filtration of a heterogenous beam (one that contains photons with different energies), low energy photons are removed from the beam, effectively "hardening" it.
How do flashlights direct their light beams?
There is aluminum reflector around the LED source to firect the beam of the flashlight.
What an aluminum foil show on a x-ray film?
The practical answer for medical imaging is, no. The presence of aluminum foil would fully block a standard X-ray beam and make it impossible to assess underlying structures.
What has the author Tapani Halme written?
Tapani Halme has written: 'Novel techniques and applications in generalised beam theory' -- subject(s): Aluminum, Structural, Steel, Structural, Structural Aluminum, Structural Steel, Structural frames
What is the effective depth of reinforced rectangular beam?
Total Depth - cover
Can aluminum can be used for concrete reinforcement?
Concrete and Steel have very similar strain values (0.0035 and 0.003). They also have very similar temperature coefficients (10e-6 and 12e-6). This means that concrete reinforced with steel will bend and deform uniformly under load and temperature changes. Aluminum has a very different strain and temperature coefficient (0.016 and 22e-6). This means that while, yes, aluminum can be used for concrete reinforcement, the behaviour of an aluminum-reinforced concrete beam is much more difficult to predict. The strength of an aluminum-reinforced concrete beam would vary as the temperature changed and it would vary with the deflected shape. I would not recommend using aluminum to reinforce concrete.
Is transparent aluminum possible?
Only on Star Trek do we find transparent aluminum. Any aluminum matrix is opaque. You can't see through it. Actually there is such thing as transparent aluminum but the power required for the x-ray laser is more than a whole city's worth and the beam must be focused down to a point of less than one-twentieth of a human hair and only lasts for 40 femtoseconds.
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.
What has the author F Jamarani written?
F. Jamarani has written: 'Deposition of single-layer and graded aluminum nitride coatings on vanadium substrates using ion-beam assisted reactive evaporation (ITER task no. ETA-EC-BRL26)' -- subject(s): Aluminum nitrate, Vanadium
