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ugg milano Combined static AC active energy _2739

 
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PostWysłany: Śro 12:33, 08 Gru 2010    Temat postu: ugg milano Combined static AC active energy _2739

Combined static AC active energy


, Combined static AC active energy compared with other energy meter,[link widoczny dla zalogowanych], meter reading in the data networking aspects of remote and unique advantages, easier to implement network management and centralized control of electricity. Such existing instruments, there have been through the public telephone network or other communication facilities, meter reading system, but how to improve anti-tampering features, how to improve data security, and reliability of the system, there have been many problems need to be addressed. V. Conclusion measurement of power consumption, especially the many problems exist. Use of dozens of cities from the domestic situation, was well worth promoting and developed on this basis, to the need to make it more perfect. References [1] He Limin with Mcs MCU application system design. Beijing: Beijing University of Aeronautics. I990 [2] National Quality and Technical Supervision. People's Republic of measurement procedures shuttle scheduled to electronic power meters. 1999 [3] Chinese National Standards of Quality and Technical Supervision Level 1 and 2 Combined static AC active energy static solution of the energy measurement, AC active energy measurement of X knife dose distribution section Hujia Cheng Yang Fan Zhou Ruxin Cheng Xiao-Yuan Peng Jiwei (1 China Institute of Metrology, Beijing 100013, China), (2 test,[link widoczny dla zalogowanych], Guangdong Province radiation dose measurement station, Guangzhou 511X) 70) Abstract This article describes the use of the German production company PTW MP3-based analysis of treatment-ray beam is only automatic measurement x Knife in the largest doses of radiation field than the (TMR) and off-axis ratio (OAR), and using home-made plexiglass phantom and small spherical volume of the detector simulation of stereotactic radiation therapy of the entire process of verification measurements of the head x knife, x knife body actual output dose treatment program. US-ray beam analyzer Lu term treatment program output dose stereotactic radiotherapy head, neck and body lesions,[link widoczny dla zalogowanych], has attracted more and more attention radiotherapy sector counterparts. The linear accelerator as sources of x-ray stereotactic treatment (collectively referred to as X knife, fork and it is divided into head and body X x blade knife), because of its low investment, and much wider range of applications and the hospital's cancer patients ages. For these reasons, the new X-ray current domestic annual number increasing year by year table knife, knife radiation field based on the characteristics of x ..., can not be treated with ordinary radiation dosimeters and detectors to measure the radiation dose parameters of value. This article describes the use of MP3-based treatment-ray beam and the small size analyzer automatically measuring probe restrain x knife I dose radiation field in the largest ratio (TMR) and off-axis ratio (OAR), and complete simulation of radiation treatment of patients with the method validation Measurement of X knife treatment plan, the output dose get satisfactory results, the aim is to study for my x ray dose of the radiation field knife I feather the amount of ways to improve the accuracy of their measurements in order to promote the use of. First, the device: 1. X-ray stereotactic treatment system produced by the Swedish Elekta stereotactic x-ray treatment system assembled in the United States Clinac600C type linear accelerator, the accelerator x-ray energy of 6MV, head x knife in the other center, the minimum by the National Natural Science-based box turn to help Project Number: 19775042.30 * diameter 5ram, maximum diameter 50ram, and the body is square portal x knife, measuring the radiation field we used for the 50mmx50ram and 80mm × Bomill port 2. Analyzer MP3 MP3 type ray beam ray beam analyzer-based system from the tank, the control unit and data processing and control software (MEPHYSTO package) component. Tank system consists of tank (size 600mmx500410mm, can accommodate 200 liters), positioning devices, elevator and reservoirs composition; control unit by a modular structure, including the built-in dual-channel electrometer TANDEM (completed in 10ms measurement points), transmission machinery stepper motor control system (stepper motor driven ball screw drive system consisting of water tanks in 5Omm / s speed to ± 0.1mm positioning accuracy of measurement of the detector,[link widoczny dla zalogowanych], to ensure that the measurement in the largest off-axis ratio and the ratio of accuracy) and laptop components. The system is equipped with water level sensors in the measurement can automatically control the level of water tank, to measure the TMR convenience. All measurements are fitted with MEPHYSTO package of notebook computer control, data acquisition, analysis, output, and measurement data into treatment planning systems for a variety of formats, the hospital can be directly measured data treatment planning system recognized,[link widoczny dla zalogowanych], reducing the surname Li Bing Suo program data, which is the international measurement of relevant organizations of the radiation therapy-based investigation into the re-2!

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