Examples of collimation

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This risk is almost entirely eliminated with the implementation of multileaf collimation.
639 cially designed collimation systems.
The beamlike characteristics of the generated ions, such as high collimation, high particle flux, and short pulse duration have been demonstrated, making them attractive for new applications.
Since the gradient of pressure is greater in the direction normal to the thin foil sur face, a bilateral collimation effect can result for thin foils.
We chose to avoid the commonly used parabolic mirrors for the beam collimation in the design phase, because they introduce excessive beam-pointing sensitivity to mechanical vibrations.
This may be due to an excessive collimation of the beam, which is still being investigated.
Some degree of beam collimation may be necessary for cer tain applications.
Consistent with the previous scheme, global, forward collimation effects due to transfer of electromagnetic momentum are expected to be negligible.
All volumes were shaped with multileaf collimation, using beams eye view.
A bunch of ions was detected along the normal of target due to self generated collimation of ions.
To investigate the effects of lower radiative cooling on jet collimation, we modeled an aluminum conical wire array.
The collimation of the protons showed strong dependence on the focusing condition.
Collimation techniques were used to frame the radiographic image and to maximize x-ray quality.
More effective can be the mechanism of collimation by pressure gradient.
The collimation of protons has not been observed in this measurement because detected solid angle was too small compared with the emission angle of protons.
Differential dosing of prostate and seminal vesicles using dynamic multileaf collimation.
This is typically a 120-140 mm spiral, which with a 3 mm collimation and 1.5 spiral pitch equates to 27 gantry revolutions.
This relation implies that angular divergence is sensitive to the wavelength, and short wavelengths favor high collimation of the beam.

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