Time Resolution Characterization of 4H-SiC LGADs with a ${}^{90}$Sr Source
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866914023117684736 |
|---|---|
| author | Yang, Tao Satapathy, Yashas Sekely, Ben J. Tishelman-Charny, Abraham Allion, Greg Atar, Gil Barletta, Philip Haber, Carl Holland, Steve Muth, John F. Pavlidis, Spyridon Stucci, Stefania |
| author_facet | Yang, Tao Satapathy, Yashas Sekely, Ben J. Tishelman-Charny, Abraham Allion, Greg Atar, Gil Barletta, Philip Haber, Carl Holland, Steve Muth, John F. Pavlidis, Spyridon Stucci, Stefania |
| contents | This work presents timing measurements of 4H-SiC Low Gain Avalanche Detectors (4H-SiC LGADs) using beta particles from a ${}^{90}$Sr source. The 4H-SiC LGADs exhibit fast signal responses, and a time resolution of 61~ps was achieved, comparable to that of standard Si LGADs. The present limitation in the time resolution of 4H-SiC LGADs appears to stem from limited charge generation. Nevertheless, their higher voltage tolerance and faster carrier drift suggest that, with increased charge collection, their timing performance could approach or even surpass that of Si LGADs. These results demonstrate the strong potential of 4H-SiC LGADs as a robust platform for precision timing in future 4D tracking detectors, while also highlighting that signal charge is the dominant factor currently limiting their performance, indicating that further optimization of gain and drift structures will be essential for future development. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_04638 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Time Resolution Characterization of 4H-SiC LGADs with a ${}^{90}$Sr Source Yang, Tao Satapathy, Yashas Sekely, Ben J. Tishelman-Charny, Abraham Allion, Greg Atar, Gil Barletta, Philip Haber, Carl Holland, Steve Muth, John F. Pavlidis, Spyridon Stucci, Stefania Instrumentation and Detectors High Energy Physics - Experiment This work presents timing measurements of 4H-SiC Low Gain Avalanche Detectors (4H-SiC LGADs) using beta particles from a ${}^{90}$Sr source. The 4H-SiC LGADs exhibit fast signal responses, and a time resolution of 61~ps was achieved, comparable to that of standard Si LGADs. The present limitation in the time resolution of 4H-SiC LGADs appears to stem from limited charge generation. Nevertheless, their higher voltage tolerance and faster carrier drift suggest that, with increased charge collection, their timing performance could approach or even surpass that of Si LGADs. These results demonstrate the strong potential of 4H-SiC LGADs as a robust platform for precision timing in future 4D tracking detectors, while also highlighting that signal charge is the dominant factor currently limiting their performance, indicating that further optimization of gain and drift structures will be essential for future development. |
| title | Time Resolution Characterization of 4H-SiC LGADs with a ${}^{90}$Sr Source |
| topic | Instrumentation and Detectors High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2509.04638 |