• 作者： Hu, Andrew Teh; Chang, Hwei-Liang
• 中文摘要： 本文經由先行整理歸納各種具有相等間距的中子散射粒子對的數目,導得了中子散函數的快速計算公式(A).A應用於求算分子量(MW)為5600的聚乙烯(PE)單晶的規則型鏈轉折模式之散射函數Fn(Q),所需的計算時間僅為原始未經歸納公式(B)的1/120.由程式結果顯示A的計算時間約與MW比例相關,而B則與 MW/sup 2/比例相關,由於A巨量地縮減了程式的計算時間,使得在微電腦上精確地求算Fn(Q)變為可行,增進了我們以中子散射來研究高分子單晶與分子鏈轉折現象的能力。
• 英文摘要： The formula for a fast computing program to calculate the neutron scattering function of a regular chain folding model of PE single crystal has been derived by means of previously counting the number of the scatterer-pairs which have the same distance between them. This program reduces the computing time by a ratio 1 to 120 for that PE of Mw=5,600 with respect to the normal program, where scatterer-pairs are calculated one by one in series. The improvement of the computing time becomes more significant for greater Mw, since the computing time of these two programs are roughly proportional to Mw and Mw/sup 2/ respectively. This improvement makes the calculation of neutron scattering function of a chain folding model of polymer single crystal available in microcomputer as IBM-PC, XT.
• 中文關鍵字： 計算; 中子散射; 散射功能; 聚乙烯鍊狀摺疊模擬; 高分子單晶
• 英文關鍵字： Calculation; Neutron Scattering; Scattering Function; Pe Chain Folding Model; Polymer Single Crystal