User name R. Michaels
Log entry time 11:36:40 on February 7,2000
Entry number 33029
keyword=More about BPM (satellite peaks, resol)I saw some more things about BPMs. The signal
cables from BPMs often have satellite peaks (see fig 1)
which appear in both ADCs, so its a signal problem, not
an ADC problem. Looking at the raster signal, I see
no such satellites. In addition, I thought of another
simple measure of resolution, since our raster pattern
is sinusoidal we can fit the edge of the position spectra
to an exponential implying resolution of about 100 microns,
assuming no beam movement. See fig 1.
FIGURE 1
