Table of Contents
Foreword
Introduction
Scope
1Referencedstandardsandterminology
Referencedstandards
Degreesofrequirements
Definitions
2Testequipment
Contrastratiotestobjects
Imagepositioncalibrationtemplate
Densitometer
Photometer
X-rayfluenceandfluenceratemonitor
3Standardsystemtestconditions
Generalrequirements
Sourcetoentranceplanedistance(SED)
Radiationrequirements
Anti-scattergrid
Positionofthecontrastratiotestobject
Positionofthex-rayfluenceoffluencerate
monitor
4Determination
Measurementprocedures
Presentationofresults
5Statementofcompliance
Statement
Appendix
Determinationofacorrectionforphotometerveiling
glare
Figures
2-1Imagepositioncalibrationtemplate
3-1Equipmentsetupsforthedetermination Abstract
Determines the systems contrast ratio (SCR) and the system veiling glare index (SVGI) at the center of the image produced by an XRII system under a given set of test conditions. The measurement procedures described pertain to images formed by the photofluorographic film system, the cine film system, the video system, and the direct viewing system.
