IEC TR 60522-2:2020 PDF

Name: IEC TR 60522-2:2020 — Medical electrical equipment - Diagnostics X-rays - Part 2: Guidance and rationale on quality equivalent filtration and permanent filtration
SKU: IEC TR 60522-2:2020
Price: 35 EUR
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Medical electrical equipment - Diagnostics X-rays - Part 2: Guidance and rationale on quality equivalent filtration and permanent filtration

Название (английский):

IEC TR 60522-2:2020

Medical electrical equipment - Diagnostics X-rays - Part 2: Guidance and rationale on quality equivalent filtration and permanent filtration

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 35
Дата публикации:: 29 октября 2020 г.
Издание:: IEC TR 60522 edition 1 version 1
ICS:: 11.040.50

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Описание (английский):

IEC TR 60522-2:2020 provides guidance on quality equivalent filtration and permanent filtration with regards to the requirements of IEC 60522-1 and its modifications versus IEC 60522:1999.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты IEC

Overview

IEC TR 60522-2:2020 - Medical electrical equipment - Diagnostic X‑rays - Part 2 - provides guidance and the technical rationale for determining Quality Equivalent Filtration (QEF) and permanent filtration in diagnostic X‑ray equipment. It supports and explains the requirements in IEC 60522‑1, clarifies differences versus the 1999 edition (IEC 60522:1999), and documents the analyses used to derive new approaches for assessing filtration in radiography and mammography.

Key Topics

Quality Equivalent Filtration (QEF): rationale and methods for stating QEF and required accuracy when comparing filter materials and thicknesses.

Permanent filtration: guidance for characterizing fixed filters within X‑ray tube assemblies and reporting methodology.

Influence of high voltage and filter material atomic number: how tube voltage (kV), K‑ and L‑edges, and filter Z affect spectra and filtration equivalence.

Additivity and combination rules: discussion of limits and pitfalls when adding QEF contributions from multiple filters and when IEC 1999 approaches were inconsistent.

Alignment and geometry: effects of reference axis alignment, target angle and angular misalignment on QEF/permanent filtration.

High voltage requirements: stability, ripple, and sensitivity near absorption edges that impact filtration determination.

Radiation beam simulation and validation: use of simulation tools (based on SRS‑78 and NIST X‑ray mass attenuation data) to compute half‑value layers and validate against laboratory measurements.

Statement and reporting: recommended content and accuracy for declaring QEF and permanent filtration for compliance and documentation.

Applications

IEC TR 60522‑2 is practical for:

Design and development of diagnostic X‑ray tube assemblies and imaging systems (radiography, mammography).

Test laboratories performing filtration, half‑value layer (HVL) and spectral characterization.

Medical physicists and clinical engineers conducting acceptance testing, QA and regulatory compliance.

Manufacturers preparing conformity documentation to IEC 60522‑1 requirements.

Regulators and certification bodies evaluating filtration claims and radiation quality.

Practical benefits include improved consistency in reporting filtration, better understanding of voltage‑ and material‑dependent effects on spectra, and validated simulation approaches to reduce time and cost of experimental tests.

Related Standards

IEC 60522‑1 (main requirements for diagnostic X‑rays)

IEC 60522:1999 (previous edition - discussed and compared)

Reference tools cited: SRS‑78 simulation approach and NIST X‑ray mass attenuation coefficients

Keywords: IEC TR 60522‑2:2020, Quality Equivalent Filtration, permanent filtration, diagnostic X‑rays, medical electrical equipment, QEF, filtration, radiography, mammography, half‑value layer, X‑ray spectrum.

IEC TR 60522-2:2020 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Users

Related Standards

Технические детали

IEC 60522:1999

Determination of the permanent filtration of X-ray tube assemblies

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