| Hovedsiden > Detection of antihydrogen annihilations with a cryogenic pure-CsI crystal detector |
| Article | |
| Title | Detection of antihydrogen annihilations with a cryogenic pure-CsI crystal detector |
| Author(s) | Regenfus, C ; Amsler, C ; Glauser, A ; Grögler, D ; Lindelöf, D ; Pruys, H S |
| Affiliation | (Phys. Inst., Univ. Zürich) |
| Collaboration | ATHENA Collaboration |
| Publication | 2003 |
| Number of pages | 4 |
| In: | Nucl. Instrum. Methods Phys. Res., A 504 (2003) pp.343-346 |
| Subject category | Detectors and Experimental Techniques |
| Accelerator/Facility, Experiment | ATHENA |
| Abstract | In the framework of the ATHENA experiment a combined tracking and photon detector, operating close to liquid nitrogen temperatures, was developed to determine simultaneously the vertex of an antiproton annihilation and energy and direction of photons stemming from a positron annihilation. The photon detector consists of 192 pure-CsI scintillation crystals (≈4 cm 3 ) coupled to 5×5 mm 2 avalanche photo-diodes, which are read by electronic chips realised in VLSI CMOS technology. These read out chips are also operational at liquid nitrogen temperature and feature a self-triggering capability. |