;b05.rec for rf 3 :splits back projections in odd and  even
do lb1 i=1,209
x55=x0
x20=2*x55
x21=2*x55-1
cp
proj3/anticlock/bpj/bpj0x21
proj3/anticlock/odd/bpj0x55
cp
proj3/anticlock/bpj/bpj0x20
proj3/anticlock/eve/bpj0x55
lb1
en