- 該程序在X射線質(zhì)量保證和服務(wù)中有著悠久的傳統(tǒng),并且易于執(zhí)行。
- 測(cè)試模式用于評(píng)估膠片屏幕系統(tǒng)、放大技術(shù)和X射線成像系統(tǒng)的分辨率能力。
- 這些圖案由各種鉛的厚度組成。各自的厚度通常在每個(gè)圖案上都有規(guī)定。每個(gè)測(cè)試模式通常被包裹在塑料中,即組織等同材料中。
- 每個(gè)圖案的分辨率范圍因測(cè)試類型而異。
Type 1: 1.0 ... 4.86 LP/mm / 16 groups |
Type 1-83: 0.5 ... 5.0 LP/mm / 16 groups |
Type 2: 0.25 … 3.33 LP/mm / 16 groups |
Type 4A: 0.5 ... 8.0 LP/mm / 2x 9 groups |
Type 4B: 0.5 ... 5.5 LP/mm / 2x 13 groups |
Type 4C: 1.4 ... 8.0 LP/mm / 2x 16 groups |
Type 6-2.8: 2.8 ... 5.0 LP/mm / 2x 6 groups |
Type 10: 0.25 … 2.0 LP/mm / 6 groups |
Type 15: 0.315 ... 1.25 LP/mm / 2x 7 groups |
Type 16: 0.5 ... 4.0 LP/mm / 7 groups |
Type 17: 0.177 ... 3.33 LP/mm / 18 groups |
Type 18: 0.5 ... 5.0 LP/mm / 21 groups / 2added contrast fields |
Type 18a: 0.5 ... 7,1 LP/mm / 24 groups / 2 added contrast fields |
Type 18b: 0.5 ... 10.0 LP/mm / 27groups / 2 added contrast fields |
Type 18c: 0.5 ... 16.6 LP/mm / 31groups / 2 added contrast fields |
Type 18d: 0.5 ... 16.6 LP/mm / 32 groups / 2 added contrast fields |
Type 18e: 0.5 ... 16.6 LP/mm / 30groups / 2 added contrast fields |
Type 21: 2.0 ... 10.0 LP/mm / 16 groups |
Type 22: 3.54 … 4.86 LP/mm / 2x 4 groups |
Type 22A: 4.0 ... 7.14 LP/mm / 2x 4 groups |
Type 22B: 3.93 … 5.5 LP/mm / 2x 4 groups |
Type 38: 0.6 ... 5.0 LP/mm / 20 groups |
Type 41: 0.6 ... 3.4 LP/mm / 2x 15 groups |
Type 42: 2.0 ... 6.0 LP/mm / 2x 14 groups |
Type 43: 3.4 ... 10.0 LP/mm / 2x 15 groups |
Type 46: 0.8 ... 9.5 LP/mm / 2x 15 groups |
Type 52: 0.05 + 0.1 + 0.25...3.4 + 3.7LP/mm / 19 groups |
Type 53: 0.25 + 0.5...10.0...6.0 LP/mm / 23groups |
Type 54: 0.5 + 0.1 + 0.25...3.55...2.8LP/mm / 28 groups |
Type 56: 0.5 + 0.1 + 0.25...3.55...2.8 LP/mm /48 groups |
Type 68: 1.4 ... 8.4 LP/mm / 2x 10 groups |
Type 80: 2.0 ... 6.0 LP/mm / 2x 12 groups |
Type 81: 0.6 … 10.0 LP/mm / 26 groups Type 84: 0.6 ... 5.0 LP/mm / 2x 16 groups |
