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在已建量程200Bq/m3以上的内充气电流电离室测氡标准的基础上,扩展量程,研制了1套采用离子脉冲电离室方法的用于环境水平样品测量及仪器校准的氡测量标准装置,包括:电离室、循环采
Based on the radon measurement standard of inflatable ionization chamber above 200Bq / m3, a set of standard radon measurement devices for ionospheric ionization chamber measurement and instrument calibration were developed. Including: ionization chamber, recycling mining