| 41. | Its imaging capability is based on a Fourier-transform technique using a set of 9 rotational modulation collimators.
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| 42. | The collimator consists of a thick sheet of lead, typically thick, with thousands of adjacent holes through it.
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| 43. | The purpose of the collimator and re-imaging optics are to take the best possible image of the slit.
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| 44. | In the isolated direction the beam is split, and then diverged, so it does not focus at the collimator.
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| 45. | Fresnel lenses of different focal lengths ( one collimator, and one collector ) are used in commercial and DIY projection.
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| 46. | New systems involving multileaf collimators ( MLCs ) are used to further shape a beam to localise treatment fields in radiotherapy.
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| 47. | The secondary collimator consists of two jaws which can be moved to either enlarge or minimize the size of the treatment field.
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| 48. | Aimpoints, like all other collimated sight systems, induce some parallax at different ranges due to the nature of the collimator.
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| 49. | The OSLO software is used by scientists and engineers to design reflectors, optical instruments, laser collimators, and illumination systems.
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| 50. | SAS 3 carried modulation collimators ( 2-11 keV ) and Slat and Tube collimators ( 1 up to 60keV ).
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