On Sun, 2 Apr 2000 11:23:59 EDT, [EMAIL PROTECTED] wrote:
>I strongly suspect that the effects
>are negligible (if at all detectable) on a top of the line tube (like
>Philips/Holland) when the device is still within its useful life cycle and
>well conditioned.
Following our experiences with different manufacturers, Philips tubes
seem to be of lowest tube tails, indeed. They are often invisible
in the Rietveld difference plots, while AEG tubes show typical tube
tails in Rietveld difference plots. This doesn't mean tube tails are
neglebticle for Philips tubes! At our experience, Philips tubes have
below 6% tube tails content. AEG tubes have near 15%. But, if you need
for line broadening values, tube tails won't be neglectible even for
Philips tubes. Here are our measurements for LaB6:
Philips-Co-Tube (5.74% tube tails)
| without correction | with correction |
| | |
size | 610(10)nm | 944(34)nm |
| | |
micro strain | 0 (on boundary) | 0.000096(10) |
J"org Bergmann, Dresden
[EMAIL PROTECTED]
