物理实验
物理實驗
물리실험
PHYSICS EXPERIMENTATION
2014年
10期
45-48
,共4页
徐春阳%陈文婷%王晓栋%张志华%方恺%赫丽
徐春暘%陳文婷%王曉棟%張誌華%方愷%赫麗
서춘양%진문정%왕효동%장지화%방개%혁려
微波%布拉格衍射%立方晶体%晶面
微波%佈拉格衍射%立方晶體%晶麵
미파%포랍격연사%립방정체%정면
microwave%Bragg diffraction%cubic crystal%crystal face
在微波布拉格衍射实验中,通过对立方晶体模型晶格常数参量选取,测定(110)面入射角与衍射强度变化关系,来验证衍射极大值在随入射角变化而变化的过程是否满足布拉格定律。同时可在一定入射角变化范围内,限定衍射级数的大小,讨论只改变接收端角度时,(100)面与(110)面衍射极大值时晶格常数所在范围,并从理论上给出同时测定两晶面可限定的衍射级数与晶格常量的范围。
在微波佈拉格衍射實驗中,通過對立方晶體模型晶格常數參量選取,測定(110)麵入射角與衍射彊度變化關繫,來驗證衍射極大值在隨入射角變化而變化的過程是否滿足佈拉格定律。同時可在一定入射角變化範圍內,限定衍射級數的大小,討論隻改變接收耑角度時,(100)麵與(110)麵衍射極大值時晶格常數所在範圍,併從理論上給齣同時測定兩晶麵可限定的衍射級數與晶格常量的範圍。
재미파포랍격연사실험중,통과대립방정체모형정격상수삼량선취,측정(110)면입사각여연사강도변화관계,래험증연사겁대치재수입사각변화이변화적과정시부만족포랍격정률。동시가재일정입사각변화범위내,한정연사급수적대소,토론지개변접수단각도시,(100)면여(110)면연사겁대치시정격상수소재범위,병종이론상급출동시측정량정면가한정적연사급수여정격상량적범위。
In microwave Bragg diffraction experiments ,by changing the lattice constant of the cu-bic model crystal ,measuring the relationship between the incident angle and the diffraction intensity of (110) plane ,the Bragg law was verified .Meanwhile ,for limited diffraction orders ,the range of the lattice constants of (100) and (110) planes was discussed when only the receiver angle was changed ,and the limitation on the range of the diffraction orders and lattice constants were also pres-ented in detail .