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NAPM IT2.41 : 0
Current
The latest, up-to-date edition.
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PHOTOGRAPHY - SENSITOMETRY OF SCREEN/FILM SYSTEMS FOR MEDICAL RADIOGRAPHY - PART 1: DETERMINATION OF SENSITOMETRIC CURVE SHAPE, SPEED AND AVERAGE GRADIENT
Hardcopy
English
Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 General requirements
5 Determination of sensitometric curve shape
6 Determination of average gradient
7 Determination of speed
8 Speed and average gradient determination without
sensitometric curve
9 Accuracy
10 Test report
TABLES
1 Beam qualities for the determination of the
sensitometric curve shape
2 Specification of techniques
FIGURES
1 Geometric set-up of the inverse-square-law sensitometer
for exposure of the screen/film combination
2 Geometric set-up for calibration of the inverse-square-law
sensitometric
3 Sensitometric curve
4 Phantom for technique I
5 Geometric set-up for adjustment of beam qualities used
for techniques I, II, III and IV
6 Geometric set-up for the measurement of speed
(techniques I, II and III)
7 Geometric set-up for the measurement of speed
(technique IV)
ANNEX
A Bibliography
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