[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fjJLUeoX03TuRXfMQdE3Jm9LceQyMIhZjdNfcpjl1k2s":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-12-07 07:47:36",253184399,[8,9,10,11],"加速电子","发射电子和聚焦电子","产生X射线","吸收散乱射线",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},85,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_47744556","第二章RT设备器材作业","X射线管阴极的作用是()",[21,32,41,50,56,65,74,83,86,94],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],253184384,[25,26,27,28],"气体绝缘","高频变压","使用金属陶瓷管","减少屏蔽铅板","使X射线机头的小型化和轻量化的措施不包括( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],253184387,[36,37,38,39],"用SF6气体代替变压器油","提高X射线管的工作频率","减少屏蔽材料的使用","缩小X射线管尺寸","不属于射线机头小型化和轻量化的措施",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],253184389,[45,46,47,48],"发射电子","电子加速","聚集电子","吸收电子","X射线管灯丝的主要作用是",{"answer":51,"createTime":5,"id":52,"options":53,"question":55,"source":30,"type":31},[],253184391,[54,11,10,45],"散热","X射线管阳极的作用不包括",{"answer":57,"createTime":5,"id":58,"options":59,"question":64,"source":30,"type":31},[],253184393,[60,61,62,63],"原子序数高","原子序数低","导热率大","耐高温","下列关于选用X射线管阳极靶材料叙述错误的是",{"answer":66,"createTime":5,"id":67,"options":68,"question":73,"source":30,"type":31},[],253184395,[69,70,71,72],"连续X射线","标识X射线","短波X射线","热能","X射线管中,电子轰击靶时能量转换的主要形式是产生( )",{"answer":75,"createTime":5,"id":76,"options":77,"question":82,"source":30,"type":31},[],253184397,[78,79,80,81],"高压发生器","X射线管","整流器","操作台","X射线机中,用来获得电子,并给予加速,从而发射X射线的部件是",{"answer":84,"createTime":5,"id":6,"options":85,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":87,"createTime":5,"id":88,"options":89,"question":93,"source":30,"type":31},[],253184401,[10,90,91,92],"吸收一部分散乱射线","承受热量","产生电子","关于X射线管阳极靶的作用叙述错误的是",{"answer":95,"createTime":5,"id":96,"options":97,"question":102,"source":30,"type":31},[],253184403,[98,99,100,101],"抗震性差,易破碎","尺寸较玻璃管大","不容易焊装皱窗口","管内真空度高,管子寿命长","关于金属陶瓷管的优点的论述正确的是"]