国产欧美日韩精品二区在线_日韩午夜超爽无码视频_r级无码视频在线观看_色www永久免费视频_午夜免费无码特黄毛片_日本成天堂在线电影播放_在线国产一级特黄蜜臀av_亚洲欧美日韩国产激情CB_最新欧美18∨ideosex性欧美_丝瓜视频污版下载

With the increasing development of human beings in the field of nuclear energy, nuclear technology has become increasingly widely used in people's daily applications, such as industrial measurement, exploration, testing, medical treatment, material production, and food processing. Therefore, the source of radioactive materials in the environment has become more complicated, and the amount of radioactive materials discharged by humans into the environment is also increasing rapidly, and the harm to human health has attracted more and more public attention. The physical detection of environmental radioactive samples is the monitoring and counting of the total α and β of various environmental media samples. The measurement technology of environmental sample collection, sample preparation, measurement methods and data composition has been formed, and an efficient and highly sensitive total α has been established. , Β monitoring count.

1. Product introduction
The low-background α and β measuring instrument has independent design of multi-channel detection systems such as one, two, four, six, and eight channels, which can measure multiple samples at the same time, and respectively give the total α and total β activity concentrations in the sample; Alpha sample or beta sample can also be measured separately. It has the characteristics of sensitivity, low background, simple structure, convenient, stable and reliable operation. The instrument can complete the measurement of water samples, biological samples, environmental samples, aerosol samples and other samples through different sample preparation methods and computer software parameter settings.

2. Related standards
      1. GB-T 11682-2008 "Low background measuring instrument"
      2. JJG 853-1993 "Verification Regulations for Low Background α and β Measuring Instruments"
      3. EJ528-1998 "General Requirements for the Safety of Nuclear Instruments"
      4. HJT 61-2001 "Technical Specification for Radiation Environmental Monitoring"
      5. GBT8993-1998 "Environmental Conditions and Test Methods for Nuclear Instruments"
      6. GB/T10257-2001 "Quality Inspection Rules for Nuclear Instruments and Nuclear Radiation Detectors"
      7. GB18871-2002 "Basic Standards for Ionizing Radiation Protection and Radiation Source Safety"

3. Product Features
      1. Mature waveform screening technology, effectively reducing alpha and beta ray crosstalk;
      2. Independent detector circuit design, which can measure at the same time or use it alone;
      3. The detector adopts α and β dual scintillators, which are highly sensitive, low background, stable and reliable;
      4. Cabinet-style design, self-contained universal wheel support, saving space and easy to move;
      5. High degree of integration, with industrial-grade tablet computer and dot matrix printer. Without any external accessories, sample measurement, data processing, storage, network remote transmission and printing can be completed;
      6. The panel of the industrial-grade tablet computer comes with a USB interface to facilitate data export, and the stylus printer supports real-time data printing and output;
      7. Chinese software interface, fast and real-time display of various detection indicators, easy to operate, strong practicability.