Difference between revisions of "Fe55 peak shape"
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[[Image:source_side_e.png|thumb|400px|energy histo for 55Fe (side of straw) mixed 50/50 at 40 sccm]] | [[Image:source_side_e.png|thumb|400px|energy histo for 55Fe (side of straw) mixed 50/50 at 40 sccm]] | ||
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| + | Overlaying side and edge data, the light coloured plots are with the source above the wire. | ||
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| + | [[Image:source_pos_hv_a.png|thumb|400px|max amplitude histo for 55Fe mixed 50/50 at 80 sccm ]] | ||
| + | |width="400pt"| | ||
| + | [[Image:source_pos_hv_e.png|thumb|400px|energy histo for 55Fe mixed 50/50 at 80 sccm]] | ||
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Revision as of 19:30, 5 November 2010
Fe55 with 50/50 Ar/CO2, New preamp and new HVB, ADC half-range
Mixed 50/50 at 40 sccm total, moved the source (collimated as usual) across the top of the straw towards the edge....
With the source over the edge of the straw, the count rate halves and the camel disappears.
Overlaying side and edge data, the light coloured plots are with the source above the wire.
