An FID
where amplitude is described by e^(kt)
will have width at half maximum of k/pi
. So if you want to broaden the line by LB
Hz you'll have to make k=pi*LB
and the apodization formula will be $e^(piLBt)$ e^(pi*LB*t)
1 
initial version

posted Sep 21 '10 at 10:59 Evgeny Fadeev 
2 
No.1 Revision

posted Sep 21 '10 at 11:06 Evgeny Fadeev 
An FID
where amplitude is described by e^(kt)
will have width at half maximum of k/pi
. So if you want to broaden the line by LB
Hz you'll have to make k=pi*LB
and the apodization formula will be $e^(piLBt)$ e^(pi*LB*t)
3 
No.2 Revision

posted Sep 21 '10 at 11:12 Evgeny Fadeev 
An FID
where amplitude is described by e^(kt)
will have width at half maximum of k/pi
. So if you want to broaden the line by LB
Hz you'll have to make k=pi*LB
and the apodization formula will be $e^(piLBt)$ e^(pi*LB*t)
4 
No.3 Revision

posted Sep 21 '10 at 11:47 Evgeny Fadeev 
An exponentially decaying FID
where amplitude is described by e^(kt)
will have width at half maximum of k/pi
. So if you want to broaden the line by LB
Hz you'll have to make k=pi*LB
and the apodization formula will be e^(pi*LB*t)
5 
No.4 Revision

posted Sep 21 '10 at 12:00 Evgeny Fadeev 
An exponentially decaying FID
where amplitude is described by e^(kt)
after FT
will have give a peak with width at half maximum of k/pi
. So if you want to broaden the line by LB
Hz you'll have to make k=pi*LB
and the apodization formula will be e^(pi*LB*t)