Chapter/Index: Introduction | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Appendix
| The spectrometer background originates mainly from backscattering of the zero-loss beam from a beam-trap aperture located in front of the detector, resulting in most noticeable with very thin TEM/STEM specimens. |