27618
DT
DT
FeKαFeKβSiK+CaKα , not CrKαCaKαAlK+CaKα, not VKα
CaKβMgK
Al
O K K SiKC
KFeLMgKAlK
SiKSiK+O K
O K not NaKPhoton energy keVCounts,
,
,
,
,
,
,
,
,
,
,
,
,
,
Coincidence
peaksCoincidence
peaksK mass frac
O
Mg
Al
Si
Ca
Fe.
.
.
.
.
.. . . . . . . .. ... Fig. 18.10 EDS spectra of NIST glass K412 over a range of dead-times from 1 % to 66 %
Si-coincidenceSi
E 0 = 20 keV
1% deadtimePhoton energy (keV)Photon energy (keV)CountsCounts10 00 000100 00010 0001 000100
0.0 0.5 1.0 1.5 2.0 2.53.0 3.54.0 4. 55 .00.0 0.5 1.0 1.5 2.0 2.53.0 3.54.0 4. 55 .04 0003 0002 0001 0000. Fig. 18.9 EDS Spectrum of silicon at a dead-time of 1 %
Chapter 18 · Qualitative Elemental Analysis by Energy Dispersive X-Ray Spectrometry