GB/T 41105.1-2021Non-destructive testing - Measurement and evaluation of the X-ray tube voltage - Part 1: Voltage divider method (English PDF)

Foreword

This document was drafted in accordance with the provisions of GB/T 1.1-2020

"Directives for standardization - Part 1: Rules for the structure and drafting of

standardizing documents".

This document is Part 1 of GB/T 41105 "Non-destructive testing - Measurement and

evaluation of the X-ray tube voltage". GB/T 41105 is divided into 3 parts:

- Part 1: Voltage divider method;

- Part 2: Constancy check by the thick filter method;

- Part 3: Spectrometric method.

This document is identical to ISO 16526-1:2011 "Non-destructive testing -

Measurement and evaluation of the X-ray tube voltage - Part 1: Voltage divider method".

It adds two chapters "Normative references" and "Terms and definitions" to this

document.

Please note that some content of this document may be patented. The issuing agency of

this document assumes no responsibility for identifying patents.

This document was proposed by AND shall be under the jurisdiction of the National

Technical Committee for Standardization of Nondestructive Testing (SAC/TC 56).

Drafting organizations of this document: Hubei Sanjiang Aerospace Jiangbei

Mechanical Engineering Co., Ltd., Shanghai Institute of Materials Science and

Technology, Comet Machinery Equipment (Shanghai) Co., Ltd., Dandong Huarili

Electric Co., Ltd., Beijing Aerospace Special Equipment Testing Research and

Development Co., Ltd., Shanghai Space Propulsion Research Institute, Aerospace

Intelligent Manufacturing (Shanghai) Technology Co., Ltd., Shanghai Aerospace

Equipment Manufacturing Factory Co., Ltd., Shanghai Daming Technology Co., Ltd.

1 Scope

This document specifies a method, for directly and absolutely measuring the average

high voltage, at the secondary side of the high-voltage generator of the X-ray system,

at a constant potential (DC). It establishes the corresponding relationship, between

checking the high-voltage output and the indicated value of the tube voltage, on the

control unit of the X-ray system.

This document is applicable to ensure the repeatable operation of X-ray systems. Tube

voltage affects the penetration properties of materials AND the contrast of X-ray images.

It also affects radiation protection related requirements.

2 Normative references

There are no normative references in this document.

3 Terms and definitions

There are no terms and definitions, that need to be defined in this document.

4 Principles

The measurement principle of the voltage divider method is as shown in Figure 1.

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