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Standard Practice for Determining Total Image Unsharpness in Radiology (Includes all amendments And changes 12/31/2010).
Automatically translated name:
Standard Practice for Determining Total Image Unsharpness in Radiology
STANDARD published on 10.6.2003
Designation standards: ASTM E2002-98(2003)e1
Note: WITHDRAWN
Publication date standards: 10.6.2003
SKU: NS-43910
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
contrast sensitivity gage, gamma ray, imaging system, radiation, radiation energy, spatial resolution, total image unsharpness, x-ray
Significance and Use | ||||||||
The gage is intended to provide a means for measuring total image unsharpness as independently as practicable from the imaging system contrast sensitivity limitations. Further description and details of the gage are provided in EN-462-5. The gage can be used in conjunction with a contrast sensitivity measuring gage, as described in Practice E 1647. |
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1. Scope | ||||||||
1.1 This practice covers the design and basic use of a gage used to determine the total image unsharpness of radiographs and radioscopic systems. 1.2 This practice is applicable to radiographic and radioscopic imaging systems utilizing X-ray and gamma ray radiation sources. 1.3 The values stated in SI units are to be regarded as standard. 1.4 The gage described can be used effectively with radiation energies up to 400 kv. When using energies in the megavolt range the results may not be completely satisfactory. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||||||
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