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제목 ATS 539 Multipurpose Phantom, 초음파 정도관리 표준팬텀




초음파 정도관리 표준팬텀 ATS Multipurpose Phantom Model 539







The Model 539 Multipurpose phantom is an easy, comprehensive means of evaluating imaging systems with an operating frequency range of 2.25 to 7.5 MHz.
Phantom is designed with a combination of monofilament line targets for distance measurements and tissue mimicking target structures of varying sizes and contrasts.
Cystic-like target structures are positioned in-line vertically, thereby permitting an entire target group to be displayed in one view. Due to the acoustic similarity of the background material and the target structures, artifacts caused by distortion, shadowing or enhancement have been eliminated. Six gray scale targets ranging in contrast from +15 to -15 dB are provided to evaluate the
system's displayed dynamic range and gray scale processing performance.

Tests Performed
• Dead Zone or Ring-Down
• Vertical Measurement Calibration
• Horizontal Measurement Calibration
• Sensitivity/Penetration
• Functional Resolution
• Axial & Lateral Resolution
• Image Uniformity
• Gray Scale & Displayed Dynamic Range

General
Operating Frequency Range   2.25 - 7.5 MHz
Weight                                 3.1 Kg (6.8 lbs)
Scan Surface Dimensions      17.5 x 7.5 cm
                                          14.0 x 7.5 cm
Overall Dimensions               23.4 x 20.5 x 9.5 cm*
Scan Surfaces 4

Line Targets
Diameter                      0.12 mm

Vertical Group
Number of Targets        17
Interval Spacing:           10 mm
Depth                           10 - 180 mm

Dead Zone Group
Number of Targets        9
Interval Spacing            1.0 mm
Lateral Displacement     5 mm
Depth                           2.0 - 10 mm

Horizontal Group
Targets per group        10
Number of Groups         2
Interval Spacing           20 mm
Depth
Linear Array Scan Surface 1: 50 mm
Sector Array Scan Surface 3: 50 mm

Axial-Lateral Resolution
Number of Targets        11
Interval Spacing             5, 4, 3, 2, 1 mm
Lateral Displacement     1.0 mm
Depth (first axial target) Scan Surface 1: 40, 70, 110, 160 mm

Anechoic Target Structures
Group 2, 3, 4
Targets per group      17
Diameter                   2, 3, 4 mm
Depth                       10 - 170 mm
Interval Spacing Center-to-Center 10 mm
Group  6, 8
Targets per group      8
Diameter                   6, 8 mm
Depth                        20 - 170 mm
Interval Spacing Center-to-Center 20 mm

Gray Scale Target Structures
Number of Targets     6
Diameter                  15 mm
Depth                       40 mm
Interval Spacing Center-to-Center  20 mm
Contrast relative to the background material (dB)  +15, +6, +3, -3, -6, -15
카테고리 정도관리팬텀

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