| Author(s): |
C E. Cox; Daniel A. Fischer; W G. Schwarz; Y Song; |
| Title: |
Improvement in the Low Energy Collection Efficiency of Si(Li) X-Ray Detectors |
| Published: |
April 07, 2005 |
| Abstract: |
Soft X-ray beam-line applications are of fundamental importance to material research, and commonly employ high-resolution Si(Li) detectors for Energy Dispersive Spectroscopy. However, the measurement of X-rays below 1 keV compromised by absorption in the material layers in front of the active crystal and a dead-layer at the crystal surface. Various Schottky barrier type contacts were investigated resulting in a 40% reduction of the dead-layer thickness and a factor of two increased sensitivity at carbon K compared to the standard Si(Li) detector. Si(Li) detectors were tested on the U7A soft X-ray beam-line at the National Synchrotron Light Source and on a Scanning Electron Microscope (SEM). |
| Citation: |
Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions With Materials and Atoms |
| Volume: |
241 |
| Pages: |
pp. 436 - 440 |
| Keywords: |
14-channel multi-element array detector;collection efficiency below 1keV;dead layer;Si(Li) detector |
| Research Areas: |
Ceramics, Materials Science |
