Siemens CT User Manual download pdf (Page 20)

Technical specifications 20

CEP08027: March 2009

GE LightSpeed

VCT

GE LightSpeed

VCT XT

Philips

Brilliance

CT 64

Siemens

SOMATOM

Sensation 64

Siemens

SOMATOM

Definition AS 64

Siemens

SOMATOM

Definition

Dual Source

Toshiba

Aquilion 64

8.10

Sequential

acquisition options

(beam collimation:

available data

acquisition widths)

40: 0.625, 1.25;

2.5; 5.0

20: 0.625; 1.25;

2.5; 5.0

10: 0.625; 1.25;

2.5; 5.0

5: 0.625; 1.25;

2.5; 5.0

2.5: 0.625;

1.25; 2.5

1.25: 0.625;

1.25

40: 0.625, 1.25;

2.5; 5.0

20: 0.625; 1.25;

2.5; 5.0

10: 0.625; 1.25;

2.5; 5.0

5: 0.625; 1.25;

2.5; 5.0

2.5: 0.625;

1.25; 2.5

1.25: 0.625;

1.25

40: 0.625, 1.25,

2.5

25: 0.625

15: 0.625, 1.25

12.5: 0.625

10: 0.625

1.25: 0.625

1.0: 0.5

28.8: 1.2

19.2: 0.6

10: 10

5: 5

4.8:0.6

3.6: 0.6

2: 1

19.2: 0.6, 1.2

10: 10

5: 5

4.8: 0.6

2: 1

28.8: 1.2

19.2: 0.6

10: 10

5: 5

4.8: 0.6

2: 1

32: 4

24: 6

16: 4

12: 3

8: 2, 8

6: 6

4: 1, 4

2: 0.5, 2

1: 1

8c Helical mode

8.11

Rotation times for

helical scanning [s]

0.4, 0.5, 0.6,

0.7, 0.8, 0.9, 1,

2

(0.35, 0.375,

0.425, 0.45

option)

0.35, 0.375,

0.4, 0.425,

0.45, 0.5, 0.6,

0.7, 0.8, 0.9, 1,

2

0.4 (option),

0.5, 0.75, 1.0,

1.5, 2.0

0.33, 0.37, 0.5,

1

0.3, 0.33, 0.5, 1 0.33, 0.5, 1

0.35, 0.375, 0.4,

0.45 (options)

0.5, 0.75, 1.0,

1.5 (standard)

8.12

Nominal z-axis x-

ray beam

collimations, helical

scanning [mm]

20, 40 20, 40

1.0, 1.25, 10,

20, 40

3.6, 6, 19.2,

28.8

4.8, 6, 12, 19.2

4.8, 6, 19.2,

28.8

32, 24, 16, 12,

8, 4, 2

8.13

Maximum z-axis x-

ray beam

collimation with

sub-millimetre

slices [mm]

40 40 40 19.2 19.2 19.2 32

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 97 98

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