A demountable variable focus X-ray tube

Moores, Brian; Brubacher, P

doi:10.1088/0022-3735/6/12/018

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Resolution Measurements2

1 the X-ray Tube1

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1974

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(3 citation statements)

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“…8(a). The intensity distributions in these regions are both twin peaked and, as predicted (Brubacher and Moores 1973), the resolution is poorer than that of a homogeneous distribution.…”

Section: Resolution Measurementssupporting

confidence: 51%

“…7). Consequently the line spreads at 30 kV, 40 mA have a more homogeneous character than those at 60 kV, 10 mA (Brubacher and Moores 1973).…”

Section: Resolution Measurementsmentioning

confidence: 85%

“…The X-ray tube employed in this study has been described in detail elsewhere (Moores and Brubacher 1973). The tube was completely demountable and employed an oil-cooled tungsten anode.…”

Section: 1 the X-ray Tubementioning

confidence: 99%

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Focal spot studies and electron focusing in a demountable X-ray tube

Moores¹,

Brubacher²

1974

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A demountable variable focus X-ray tube has been employed to study the effect on the focal spot of changes in the filament position anode-cathode separation and tube current and voltage. By measuring the focal spot line spread function for various tube parameters the effect of electron focusing on both the size and intensity distribution of the focal spot has been studied. The observed changes in the focal spot line spread function can be explained in terms of the focusing of the electron beams originating from different parts of the filament. Large variations in both the size and intensity distribution of the focal spot are observed with changes in the position of the filament.

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“…8(a). The intensity distributions in these regions are both twin peaked and, as predicted (Brubacher and Moores 1973), the resolution is poorer than that of a homogeneous distribution.…”

Section: Resolution Measurementssupporting

confidence: 51%

“…7). Consequently the line spreads at 30 kV, 40 mA have a more homogeneous character than those at 60 kV, 10 mA (Brubacher and Moores 1973).…”

Section: Resolution Measurementsmentioning

confidence: 85%