4 * this program tries helping to understand the amorphous depuration
5 * and recrystallization of SiCx while ion implanation. hopefully the program
6 * will simulate the stabilization of the selforganizing structure in the
10 * - J. K. N. Lindner. Habilationsschrift, Universitaet Augsburg.
11 * - Maik Haeberlen. Diplomarbeit, Universitaet Augsburg.
18 #include <sys/types.h>
28 #define MAKE_AMORPH(N) *(N)|=AMORPH
29 #define MAKE_CRYST(N) *(N)&=~AMORPH
35 puts("-n \t\t no user interaction");
36 printf("-a <value> \t slope of nuclear energy loss (default %f)\n",A_EL);
37 printf("-b <value> \t nuclear energy loss offset (default %f)\n",B_EL);
38 printf("-x <value> \t # x cells (default %d)\n",X);
39 printf("-y <value> \t # x cells (default %d)\n",Y);
40 printf("-z <value> \t # x cells (default %d)\n",Z);
42 printf("-X <value> \t display x (default %d)\n",X/2-1);
43 printf("-Y <value> \t display y (default %d)\n",Y/2-1);
44 printf("-Z <value> \t display z (default %d)\n",Z/2-1);
46 printf("-s <value> \t steps (default %d)\n",STEPS);
47 printf("-d <value> \t refresh display (default %d)\n",REFRESH);
48 printf("-r <value> \t amorphous influence range (default %d)\n",RANGE);
49 printf("-f <value> \t pressure = <value> * 1/distance^2 (default %f)\n",A_AP);
50 printf("-p <value> \t pressure offset (default %f)\n",B_AP);
51 printf("-A <value> \t slope of linear c distribution (default %f)\n",A_CD);
52 printf("-B <value> \t linear c distribution offset (default %f)\n",B_CD);
54 printf("-C <value> \t initial c concentration (default %d)\n",CC);
56 printf("-D <value> \t diffusion rate from cryst to amorph cells (default %f)\n",D_R);
57 puts("-L <file> \t load from file");
58 puts("-S <file> \t save to file");
59 puts("-R <file> \t read from random file");
64 int process_cell(d3_lattice *d3_l,u32 x,u32 y,u32 z,int r,double a,double b,int *t_c)
71 thiz=d3_l->status+x+y*d3_l->max_x+z*d3_l->max_x*d3_l->max_y;
72 conc=d3_l->extra+x+y*d3_l->max_x+z*d3_l->max_x*d3_l->max_y;
80 if(*(d3_l->status+((x+d3_l->max_x+i)%d3_l->max_x)+((y+d3_l->max_y+j)%d3_l->max_x)*d3_l->max_x+z*d3_l->max_x*d3_l->max_y)&AMORPH) p+=a*URAND_MAX/(i*i+j*j);
86 if(get_rand(URAND_MAX)<=p)
93 /* assume 1-p probability */
94 if(get_rand(URAND_MAX)>p)
106 int distrib_c(d3_lattice *d3_l,double d_r,double a,double b)
113 /* put one c ion somewhere in the lattice */
114 x=get_rand(d3_l->max_x);
115 y=get_rand(d3_l->max_y);
116 z=get_rand_lgp(d3_l->max_z,a,b);
117 *(d3_l->extra+x+y*d3_l->max_x+z*d3_l->max_x*d3_l->max_y)+=1;
119 /* diffusion in layer */
120 for(i=0;i<d3_l->max_x;i++)
122 for(j=0;j<d3_l->max_y;j++)
124 for(k=0;k<d3_l->max_z;k++)
126 offset=i+j*d3_l->max_x+k*d3_l->max_x*d3_l->max_y;
128 if(*(d3_l->status+offset)&AMORPH)
130 /* look at neighbours and move c ions */
135 off=((i+d3_l->max_x+c)%d3_l->max_x)+j*d3_l->max_x+k*d3_l->max_x*d3_l->max_y;
136 /* case neighbour not amorph */
137 if(!(*(d3_l->status+off)&AMORPH)) carry=(int)(d_r*(*(d3_l->extra+off)));
138 /* case neighbour amorph */
139 else carry=(*(d3_l->extra+off)-*(d3_l->extra+offset))/2;
142 *(d3_l->extra+offset)+=carry;
143 *(d3_l->extra+off)-=carry;
151 off=i+((j+c+d3_l->max_y)%d3_l->max_y)*d3_l->max_x+k*d3_l->max_x*d3_l->max_y;
152 /* case neighbour not amorph */
153 if(!(*(d3_l->status+off)&AMORPH)) carry=(int)(d_r*(*(d3_l->extra+off)));
154 /* case neighbour amorph */
155 else carry=(*(d3_l->extra+off)-*(d3_l->extra+offset))/2;
158 *(d3_l->extra+offset)+=carry;
159 *(d3_l->extra+off)-=carry;
164 /* case not amorph */
166 /* look at neighbours and move c ions */
171 off=i+((j+c+d3_l->max_y)%d3_l->max_y)*d3_l->max_x+k*d3_l->max_x*d3_l->max_y;
172 /* case neighbour not amorph */
173 if(!(*(d3_l->status+off)&AMORPH))
175 carry=(*(d3_l->extra+off)-*(d3_l->extra+offset))/2;
178 *(d3_l->extra+offset)+=carry;
179 *(d3_l->extra+off)-=carry;
192 int distrib_c_old(d3_lattice *d3_l,int t_c,double a,double b)
194 int i,j,k,total,area;
200 area=d3_l->max_x*d3_l->max_y;
201 area_h=(int *)malloc(d3_l->max_z*sizeof(int));
204 sum=b*d3_l->max_z+a*d3_l->max_z*(d3_l->max_z+1)/2;
205 for(i=0;i<d3_l->max_z;i++)
210 if(!(*(d3_l->status+(i*area)+j)&AMORPH))
215 temp=(int)((i+1)*a+b)*t_c/(sum*area_h[i]);
218 if(!(*(d3_l->status+(i*area)+j)&AMORPH))
220 *(d3_l->extra+(i*area)+j)=temp;
224 left=(int)(((i+1)*a+b)*t_c/sum)%area_h[i];
227 x=get_rand(d3_l->max_x);
228 y=get_rand(d3_l->max_y);
229 if(!(*(d3_l->status+(i*area)+x+y*d3_l->max_x)&AMORPH))
231 *(d3_l->extra+(i*area)+x+y*d3_l->max_x)+=1;
240 x=get_rand(d3_l->max_x);
241 y=get_rand(d3_l->max_y);
242 z=get_rand_lgp(d3_l->max_z,a,b);
243 if(!(*(d3_l->status+x+y*d3_l->max_x+z*area)&AMORPH))
245 *(d3_l->extra+x+y*d3_l->max_x+z*area)+=1;
254 int save_to_file(char *sf,d3_lattice *d3_l,info *my_inf)
258 if((sf_fd=open(sf,O_WRONLY|O_CREAT))<0)
260 puts("cannot open save file");
263 if(write(sf_fd,d3_l,sizeof(d3_lattice))<sizeof(d3_lattice))
265 puts("failed saving d3 lattice struct");
268 if(write(sf_fd,my_inf,sizeof(info))<sizeof(info))
270 puts("failed saving info struct");
273 c=d3_l->max_x*d3_l->max_y*d3_l->max_z;
274 if(write(sf_fd,d3_l->status,c*sizeof(unsigned char))<c*sizeof(unsigned char))
276 puts("failed saving status of d3 lattice sites");
279 if(write(sf_fd,d3_l->extra,c*sizeof(int))<c*sizeof(int))
281 puts("failed saving sites concentration");
289 int load_from_file(char *lf,d3_lattice *d3_l,info *my_inf)
293 if((lf_fd=open(lf,O_RDONLY))<0)
295 puts("cannot open load file");
298 if(read(lf_fd,d3_l,sizeof(d3_lattice))<sizeof(d3_lattice))
300 puts("failed reading d3 lattice struct");
303 if(read(lf_fd,my_inf,sizeof(info))<sizeof(info))
305 puts("failed reading info struct");
308 c=d3_l->max_x*d3_l->max_y*d3_l->max_z;
309 if((d3_l->status=(unsigned char*)malloc(c*sizeof(unsigned char)))==NULL)
311 puts("cannot allocate status buffer");
314 if((d3_l->extra=(int *)malloc(c*sizeof(int)))==NULL)
316 puts("cannot allocate concentration buffer");
319 if(read(lf_fd,d3_l->status,c*sizeof(unsigned char))<c*sizeof(unsigned char))
321 puts("failed reading status of d3 lattice sites");
324 if(read(lf_fd,d3_l->extra,c*sizeof(int))<c*sizeof(int))
326 puts("failed reading sites concentration");
334 int main(int argc,char **argv)
336 u32 max_x,max_y,max_z,x,y,z,x_c,y_c,z_c;
337 int i,quit,escape,nowait;
339 char s_file[MAX_CHARS];
340 char l_file[MAX_CHARS];
341 char r_file[MAX_CHARS];
345 char status_txt[MAX_TXT];
346 char conc_txt[MAX_TXT];
347 char steps_txt[MAX_TXT];
348 char cc_txt[MAX_TXT];
351 char ap_txt[MAX_TXT];
352 char el_txt[MAX_TXT];
353 char cd_txt[MAX_TXT];
355 char ap2_txt[MAX_TXT];
356 char cd2_txt[MAX_TXT];
357 char el2_txt[MAX_TXT];
358 char dr_txt[MAX_TXT];
359 char *arg_v[MAX_ARGV];
397 my_info.a_el=atof(argv[++i]);
400 my_info.b_el=atof(argv[++i]);
403 max_x=atoi(argv[++i]);
406 max_y=atoi(argv[++i]);
409 max_z=atoi(argv[++i]);
423 my_info.steps=atoi(argv[++i]);
426 refresh=atoi(argv[++i]);
429 my_info.range=atoi(argv[++i]);
432 my_info.a_ap=atof(argv[++i]);
435 my_info.b_ap=atof(argv[++i]);
438 my_info.a_cd=atof(argv[++i]);
441 my_info.b_cd=atof(argv[++i]);
445 my_info.cc=atoi(argv[++i]);
449 my_info.d_r=atof(argv[++i]);
452 strcpy(l_file,argv[++i]);
455 strcpy(s_file,argv[++i]);
458 strcpy(r_file,argv[++i]);
473 if(!strcmp(r_file,"")) rand_init(NULL);
474 else rand_init(r_file);
476 if(!strcmp(l_file,""))
479 d3_lattice_init(&argc,argv,&d3_l,max_x,max_y,max_z);
480 if((d3_l.status=(unsigned char *)malloc(i*sizeof(unsigned char)))==NULL)
482 puts("failed allocating status buffer");
485 memset(d3_l.status,0,i*sizeof(unsigned char));
486 if((d3_l.extra=(int *)malloc(i*sizeof(int)))==NULL)
488 puts("failed allocating concentration buffer");
491 memset(d3_l.extra,0,i*sizeof(int));
494 load_from_file(l_file,&d3_l,&my_info);
495 d3_lattice_init(&argc,argv,&d3_l,d3_l.max_x,d3_l.max_y,d3_l.max_z);
498 d3_event_init(&d3_l);
500 strcpy(a_txt,"args:");
501 sprintf(s_txt,"steps: %d",my_info.steps);
502 sprintf(r_txt,"pressure range: %d",my_info.range);
503 sprintf(ap_txt,"pressure faktor: %.2f",my_info.a_ap);
504 sprintf(ap2_txt,"pressure offset: %.2f",my_info.b_ap);
505 sprintf(el_txt,"energy loss slope: %.2f",my_info.a_el);
506 sprintf(el2_txt,"energy loss offset: %.2f",my_info.b_el);
507 sprintf(cd_txt,"c distrib slope: %.2f",my_info.a_cd);
508 sprintf(cd2_txt,"c distrib offset: %.2f",my_info.b_cd);
509 sprintf(dr_txt,"diffusion rate: %.2f",my_info.d_r);
519 arg_v[10]=steps_txt;;
535 if(!strcmp(l_file,""))
538 while((i<my_info.steps) && (quit==0) && (escape==0))
540 x_c=get_rand(d3_l.max_x);
541 y_c=get_rand(d3_l.max_y);
542 z_c=get_rand_lgp(d3_l.max_z,my_info.a_el,my_info.b_el);
543 distrib_c(&d3_l,my_info.d_r,my_info.a_cd,my_info.b_cd);
544 process_cell(&d3_l,x_c,y_c,z_c,my_info.range,my_info.a_ap,my_info.b_ap,&(my_info.cc));
547 sprintf(x_txt,"x: %d",x+1);
548 sprintf(y_txt,"y: %d",y+1);
549 sprintf(z_txt,"z: %d",z+1);
550 sprintf(status_txt,"status: %c",(*(d3_l.status+x+y*d3_l.max_x+z*d3_l.max_x*d3_l.max_y)&AMORPH)?'a':'c');
551 sprintf(conc_txt,"conc: %d",*(d3_l.extra+x+y*d3_l.max_x+z*d3_l.max_x*d3_l.max_y));
552 sprintf(steps_txt,"step: %d",i);
553 sprintf(cc_txt,"total c: %d",my_info.cc);
554 d3_lattice_draw(&d3_l,x,y,z,24,arg_v);
555 // scan_event(&d3_l,&x,&y,&z,&quit,&escape);
561 if(strcmp(s_file,"")) save_to_file(s_file,&d3_l,&my_info);
563 while((quit==0) && (escape==0) && (nowait==0))
565 sprintf(x_txt,"x: %d",x+1);
566 sprintf(y_txt,"y: %d",y+1);
567 sprintf(z_txt,"z: %d",z+1);
568 sprintf(status_txt,"status: %c",(*(d3_l.status+x+y*d3_l.max_x+z*d3_l.max_x*d3_l.max_y)&AMORPH)?'a':'c');
569 sprintf(conc_txt,"conc: %d",*(d3_l.extra+x+y*d3_l.max_x+z*d3_l.max_x*d3_l.max_y));
570 strcpy(steps_txt,"step: end!");
571 sprintf(cc_txt,"total c: %d",my_info.cc);
572 d3_lattice_draw(&d3_l,x,y,z,24,arg_v);
573 scan_event(&d3_l,&x,&y,&z,&quit,&escape);
576 d3_lattice_release(&d3_l);