Opinion draft of the hottest portable X-radiation

Portable X γ Radiation surrounding dose equivalent meter and monitor "opinion draft issued

portable X γ Radiation surrounding dose equivalent (rate) meters refer to those used to measure x γ Radiation protection instrument for surrounding dose equivalent (rate) and/or directional dose equivalent (rate) generated by radiation source. It can generate some form of electrical signal under the action of photon administrative orders, such as arrows, which can be measured and indicated by measuring components. After metrological calibration, the indicated value is used as the measurement of peripheral dose equivalent (rate) or directional peripheral dose equivalent (rate)

on November 14, the national ionizing radiation measurement technical committee issued the portable X γ Exposure draft for type evaluation of radiation surrounding dose equivalent (rate) meters and monitors, and solicit opinions from measurement institutions, scientific research institutions and other relevant units across the country

the drafting unit of the unfair process of fixture design in this regulation is Shanghai Institute of Metrology and testing technology, JJF "rules for the preparation of outline of type evaluation of measuring instruments", JJF "general Metrological Terms and definitions", JJF 1059 "Evaluation and expression of measurement uncertainty" together constitute the basic specification supporting the formulation of this type evaluation outline. This type evaluation outline is issued for the first time

in addition, the procedures are based on gb/t 4835 Radiation protection instruments β、 X and γ Radiation surrounding and/or directional dose equivalent (rate) meters and/or monitors Part 1: Portable workplace and environmental measuring instruments and monitors "is the main technical reference; Refer to gb/t 12162 for reference radiation characteristics, determination and calibration methods of reference quantity values, etc X-ray and X-ray for calibrating dosimeters and dose rate meters and determining their energy response γ Reference radiation - Part 1: radiation characteristics and generation methods ", gb/t 12162 X-ray and X-ray for calibrating dosimeters and dose rate meters and determining their energy response γ Refer to the world radiation test in recent 20 years - Part 2: dosimetry of reference radiation of 8kev-1.3mev and 4mev-9mev, gb/t 12162 X-ray and X-ray for calibrating dosimeters and dose rate meters and determining their energy response γ Reference radiation - Part 3: calibration of site dosimeters and personal dosimeters and determination of their energy response and angular response

this type evaluation outline is applicable to portable X γ Type evaluation test of new products of radiation surrounding dose equivalent (rate) instrument and monitor. Including various portable general-purpose x γ Radiation surrounding dose equivalent (rate) meter and monitoring instrument type evaluation test

not applicable to fixed x γ Radiation monitor and wearable x please rest assured that new and old customers can use our products γ Type evaluation test of personal radiation dose monitor; Not applicable to x γ Type evaluation test of radiation directional dose equivalent instrument; Not applicable to neutrons and β Type evaluation test of radiation dose equivalent (rate) instrument; It is not applicable to the type evaluation test of passive measuring devices such as film dosimeter, thermoluminescence dosimeter or quartz wire electrometer

as a protective instrument, portable radiation X γ Radiation protection instruments are the ionizing radiation instruments with the largest social retention and the widest range of use, which are listed in the catalogue of international compulsory verification measuring instruments. They occupy an important position in the practice of radiation protection. In order to ensure the accuracy of monitoring data and better serve the relevant work, this procedure is formulated, and its terminology, general technology, measurement requirements, experimental conditions, dose performance requirements, etc. are described in detail

in the long run, portable spoke x γ Radiation protection instruments have important application value in radiation protection practice. As far as the instrument itself is concerned, the core technology is always the key driving force for development. On this basis, the improvement and revision of industry standards and the role of scientific expertise will boost the sustainable development of the industry