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\rCoMo170表面沾污仪是为同时测量α、β、γ表面沾污而设计的，该仪器可以固定或者移动使用。<\/span><\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r仪器特点： <\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□薄层塑料闪烁体探测器，不用充气 <\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□可以对α、β、γ同时测量 <\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□测量数据储存并且可以传输到PC<\/span>上 <\/span><\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□β、γ本底监视与补偿 <\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□自动或手动设置阈值 <\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□在整个有效面积上探测不均匀度低于15% <\/span><\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□20<\/span>个可自由编辑的核素库 <\/span><\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□测量时间和照明时间可调 <\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□可安装外接探测器 <\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□用户友好操作界面，只需要5<\/span>个键 <\/span><\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r技术指标 <\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□探测器：带有ZnS<\/span>层的塑料闪烁体，探头面积<\/span>170cm2<\/span>（<\/span>CoMo170<\/span>）<\/span>,300 cm2<\/span>（<\/span>CoMo300<\/span>） <\/span><\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□单 位：C/s<\/span>、<\/span>Bq<\/span>或者<\/span>Bq/cm2 <\/span><\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□阈 值：α、β的阈值可以选用c/s<\/span>、<\/span>Bq<\/span>或<\/span>Bq/cm2<\/span>单位进行编程设置 <\/span><\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□效率（2<\/span>π）： <\/span>Cs-137<\/span>，<\/span>35%<\/span>；<\/span>Am-241<\/span>，<\/span>22%<\/span>；<\/span>U-238<\/span>，<\/span>26% <\/span><\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□存储器：750<\/span>个数据，并且有打印功能（带时间记录） <\/span><\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□显 示：大尺寸LCD<\/span>显示，带背景灯，<\/span>128<\/span>×<\/span>64<\/span>像素 <\/span><\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□尺 寸： <\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r■CoMo170<\/span>：<\/span>280<\/span>×<\/span>125<\/span>×<\/span>135mm3 <\/span>（带手柄） <\/span><\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r■CoMo300<\/span>：<\/span>318<\/span>×<\/span>157<\/span>×<\/span>172mm3 <\/span>（带手柄） <\/span><\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□温 度：﹣10<\/span>℃～﹢<\/span>40<\/span>℃ <\/span><\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□电 源：两节3V<\/span>电池或者<\/span>NiMH<\/span>可充电电池 <\/span><\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□时 间：30<\/span>～<\/span>35<\/span>小时 <\/span><\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□重 量： <\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r■CoMo170 750g <\/span> <\/span><\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r■CoMo300 1150g <\/span><\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r设备选件： <\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□墙壁电池充电器：包括快速和慢速充电插口 <\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□ABS<\/span>便携箱 <\/span><\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r□外置探头 <\/span><\/span>\r<\/p>\r \r<\/span>\r<\/p>\r \r■ GM 18550 <\/span>（<\/span>