BS ISO 9236-1:2004
Current
The latest, up-to-date edition.
Photography. Sensitometry of screen/film systems for medical radiography Determination of sensitometric curve shape, speed and average gradient
Hardcopy , PDF
English
12-02-2004
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
4.1 Storage and handling conditions
4.2 Safelights
4.3 X-ray equipment
4.4 Air kerma meter
4.5 Processing
4.6 Densitometry
5 Determination of sensitometric curve shape
5.1 General
5.2 Beam qualities
5.3 Geometry for curve shape determination
5.4 Exposure
5.5 Evaluation
6 Determination of average gradient
7 Determination of speed
7.1 Definition
7.2 Beam qualities
7.3 Geometry
7.4 Exposure
7.5 Evaluation
8 Speed and average gradient determination without
sensitometric curve
9 Uncertainty
10 Test report
Annex A (informative) Rationale
Bibliography
Specifies methods for the determination of the sensitometric curve shape, average gradient and speed of a single sample of a screen/film/filmholder/processing system for medical radiography.
| Committee |
CPW/42
|
| DevelopmentNote |
Reviewed and confirmed by BSI, August 2016. (07/2016)
|
| DocumentType |
Standard
|
| Pages |
30
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This part of ISO9236 specifies methods for the determination of the sensitometric curve shape, average gradient and speed of a single sample of a screen/film/filmholder/processing system for medical radiography. It is not applicable to special radiographic applications such as mammography, dental radiography and direct-exposing medical radiographic systems (see for example ISO5799[3]).
The filmholder can be any means that ensures close screen/film contact and prevents the film from being exposed to ambient light. In particular, the filmholder can be a light-tight vacuum bag, as often used in the laboratory, or a radiographic cassette as used in medical radiography.
| Standards | Relationship |
| ISO 9236-1:2004 | Identical |
| ISO 5799:1991 | Photography Direct-exposing medical and dental radiographic film/process systems Determination of ISO speed and ISO average gradient |
| IEC 60522:1999 | Determination of the permanent filtration of X-ray tube assemblies |
| ISO 5-3:2009 | Photography and graphic technology Density measurements Part 3: Spectral conditions |
| ISO 5-1:2009 | Photography and graphic technology Density measurements Part 1: Geometry and functional notation |
| ISO 4037-1:1996 | X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy Part 1: Radiation characteristics and production methods |
| 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 |
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