PHOTOGRAPHY - SENSITOMETRY OF SCREEN/FILM SYSTEMS FOR MEDICAL RADIOGRAPHY - PART 1: DETERMINATION OF SENSITOMETRIC CURVE SHAPE, SPEED AND AVERAGE GRADIENT

Available format(s)

Hardcopy

Language(s)

English

Publisher

National Association of Photographic Manufacturers, Inc.

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

Specifies methods for determination of the average gradient, sensitometric curve shape, and speed of a single sample of a film/filmholder/screen/processing system in medical radiography. Excluded are such applications for dental radiography, mammography and direct-exposing medical radiographic systems. NOTE:- Hereafter, film/filmholder/screen combinations will be referred to as "combinations" and will be referred to as "systems" when the processing is included.

DocumentType	Standard
Pages	24
PublisherName	National Association of Photographic Manufacturers, Inc.
Status	Current

ISO 5-3:2009	Photography and graphic technology Density measurements Part 3: Spectral conditions
ISO 554:1976	Standard atmospheres for conditioning and/or testing — Specifications
ISO 5-2:2009	Photography and graphic technology Density measurements Part 2: Geometric conditions for transmittance density