YY/T 0894-2013Medical electrical equipment - Dosimetric instruments as used in brachytherapy - Instruments based on well-type ionization chambers (English PDF)

1 Scope

This standard specifies the well type ionization chamber measurements and ancillary components (see Chapter 3 defined) performance and certain structural requirements for the determination of a

The amount of, for example. after a given type of appropriate calibration source for brachytherapy photon radiation field intensity in the air kerma rate

Degrees or reference air kerma rate, or photons and beta radiation field at a depth of water absorbed dose.

The criteria include quantitative methods adapted brachytherapy sources. This amount may be air kerma rate or intensity at 1m from the source

Reference air kerma rate, or at a certain depth (for example. 2mm or 5mm) absorbed dose to water. The measurement of the amount by

Various existing well type ionization chamber or system implementation. This standard applies to include and beta-ray photons, including the intended use of low-dose, high

Dose rate brachytherapy intravascular measurement products. This standard does not apply to medical applications of nuclear instrumentation. Limited to the application of this

In the well type ionization chamber as a detector of the instrument.

The instrument uses a measuring chamber (inserted into a body cavity) or organizations radioactive output (insert human tissue) sealed sources.

The purpose of this standard are.

a) the establishment of the well type chamber system satisfactory performance requirements, and b) providing a standardized method for determining compliance with the performance.

This standard does not involve security Well type ionization chamber system. Well type ionization chamber system are not covered by this standard environment for patients. Well type

Electrical ionization chamber system security, see IEC 61010-1. Electrometer measurement system, see IEC 60731.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein

Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 2900.81-2008 Electrotechnical terminology Nuclear Instruments Physical phenomena and basic concepts (IEC 60050-393.2003, IDT)

GB/T 19629-2005 Medical electrical equipment - X-ray diagnostic imaging used in the ionization chamber and (or) semiconductor detector dose

Meter (IEC 61674.1997, IDT)

GB/T 20012-2005 Medical electrical equipment dose area product meter (IEC 60580.2003, IDT)

IEC 60417 Graphical symbols for electrical equipment (Graphicalsymbolsforuseonequipment)

IEC 60601-1.2005 Medical electrical equipment. Part 1. Basic safety and essential performance General requirements (Medicalelectrical equipment-Part 1. Generalrequirementsforbasicsafetyandessentialperformance)

IEC 60731.1997 Medical electrical equipment used in radiotherapy ionization chamber dosimeter (Medicalelectrical equipment-Dosimeterswithionizationchambersasusedinradiotherapy)

IEC /T R60788.2004 Medical electrical equipment - defined indexes (Medicalelectricalequipment-Glossaryof definedterms)

IEC 61187 Electrical and electronic measuring equipment - Documentation (Electricalandelectronicmeasuringequipment-Doc- umentation)

ISO /IEC Guide 99 international basic and common terminology Metrology (VIM) […]