ASTM E2007-10(2023) PDF
Standard Guide for Computed Radiography
Standard Guide for Computed Radiography
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 23
- Дата публикации:
- 1 июня 2023 г.
- Издание:
- E2007
- ICS:
- 17.180.01
SIGNIFICANCE AND USE 4.1 This guide is intended as a source of tutorial and reference information that can be used during establishment of computed radiography techniques and procedures by qualified CR personnel for specific applications. All materials presented within this guide may not be suited for all levels of computed radiographic personnel. 4.2 This guide is intended to build upon an established basic knowledge of radiographic fundamentals (that is, film systems) as may be found in Guide E94. Similarly, materials presented within this guide are not intended as “all-inclusive” but are intended to address basic CR topics and issues that complement a general knowledge of computed radiography as described in 1.2 and 3.2.28. 4.3 Materials presented within this guide may be useful in the development of end-user training programs designed by qualified CR personnel or activities that perform similar functions. Computed radiography is considered a rapidly advancing inspection technology that will require the user maintain knowledge of the latest CR apparatus and technique innovations. Section 11 of this guide contains technical reference materials that may be useful in further advancement of knowledge associated with computed radiography. SCOPE 1.1 This guide provides general tutorial information regarding the fundamental and physical principles of computed radiography (CR), definitions and terminology required to understand the basic CR process. An introduction to some of the limitations that are typically encountered during the establishment of techniques and basic image processing methods are also provided. This guide does not provide specific techniques or acceptance criteria for specific end-user inspection applications. Information presented within this guide may be useful in conjunction with those standards of 1.2. 1.2 CR techniques for general inspection applications may be found in Practice E2033. Technical qualification attributes for CR systems may be found in Practice E2445. Criteria for classification of CR system technical performance levels may be found in Practice E2446. Reference Images Standards E2422, E2660, and E2669 contain digital reference acceptance illustrations. 1.3 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only. 1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Abstract
Overview
ASTM E2007-10(2023): Standard Guide for Computed Radiography provides comprehensive tutorial and reference information on the fundamental and physical principles underlying computed radiography (CR). Developed by ASTM International, this guide supports qualified personnel in establishing and refining computed radiography techniques and procedures for various non-destructive testing (NDT) applications.
This guide is designed to complement a basic understanding of radiographic examination using film, while introducing key computed radiography concepts, terminology, system components, and technical topics. It helps practitioners navigate limitations, highlight image processing fundamentals, and stay informed about developments in CR technology.
Key Topics
-
Computed Radiography Fundamentals: Explains the principles of computed radiography using storage phosphor imaging plates (IPs), describing core steps from image acquisition to digital processing and display.
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System Components: Details the typical CR system, including imaging plates, plate readers, computers, electronic display devices, and supporting software.
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Essential Terminology: Defines important concepts such as spatial resolution, contrast-to-noise ratio (CNR), signal-to-noise ratio (SNR), pixel value, gray scale, and digital image processing.
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Latent Image Formation and Processing: Discusses the phenomenon of photostimulable luminescence (PSL) in storage phosphors, the process of capturing and reading the digital latent image, and managing residual images.
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Image Quality Factors: Addresses key factors affecting CR image quality, such as exposure parameters, resolution, dynamic range, digital noise, and the importance of proper handling and processing.
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System Calibration and Reference Materials: Introduces the use of digital reference images and technical reference materials for system performance evaluation and classification.
Applications
Computed radiography is widely used across multiple industries that require reliable, high-resolution imaging for inspection and evaluation:
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Industrial Non-Destructive Testing (NDT): CR enables detailed inspection of welds, castings, and structural components in sectors such as aerospace, automotive, oil and gas, and power generation.
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Quality Assurance and Control: The ability to produce, store, and analyze high-quality digital images enhances process control and traceability in manufacturing environments.
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Training and Certification: Materials in this standard support the development of end-user training programs for both new and experienced CR practitioners, facilitating consistent and up-to-date knowledge transfer.
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Archiving and Digital Workflow Integration: Digital images can be efficiently stored, retrieved, and shared, supporting remote diagnostics, regulatory compliance, and robust data management practices.
Related Standards
To effectively establish or enhance computed radiography practices, ASTM E2007-10(2023) should be used alongside these closely associated standards:
- ASTM E94: Guide for Radiographic Examination Using Industrial Radiographic Film
- ASTM E2033: Practice for Radiographic Examination Using Computed Radiography (Photostimulable Luminescence Method)
- ASTM E2445: Practice for Performance Evaluation and Long-Term Stability of Computed Radiography Systems
- ASTM E2446: Practice for Manufacturing Characterization of Computed Radiography Systems
- ASTM E2422, E2660, E2669: Standards containing digital reference images for various materials and applications
- ASTM E1316: Terminology for Nondestructive Examinations
Practical Value
By following the guidance in ASTM E2007-10(2023), organizations and professionals can:
- Ensure accurate, repeatable computed radiography results
- Improve detection sensitivity and inspection reliability
- Develop effective training and quality assurance programs
- Facilitate compliance with international best practices in CR and NDT
Regular reference to this standard supports the implementation and continual improvement of computed radiography systems, helping industries maintain leading-edge, efficient, and safe inspection practices.
Технические детали
- Технический комитет
- E07 - Nondestructive Testing
- SKU
- ASTM E2007-10(2023)
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