| Autor: |
Cantatore, E., Antinori, F., Becks, K.H., Beker, H., Buis, E.J., Burger, P., Campbell, M., Casagrande, L., Catanesi, M.G., Chesi, E., D'Auria, S., DaVià, C., Di Bari, D., Di Liberto, S., Gys, T., Heijne, E.H.M., Humpston, G., Jacholkowski, A., Jæger, J.J., Klempt, W., Kubasta, J., Leitner, R., Lenti, V., Luptak, M., Martinengo, P., Mazzoni, M.A., Meddeler, G., Meddi, F., Middelkamp, P., Mikulec, B., Morando, M., Pellegrini, F., Pospisil, S., Quercigh, E., Ridky, J., Ropotar, I., Safarik, K., Saladino, S., Scharfetter, L., Segato, G., Simone, S., Smith, K., Snoeys, W., Sobczynski, C., Tomasicchio, G., Vrba, V. |
| Zdroj: |
Nuclear Instruments and Methods in Physics Research Section A; May 1998, Vol. 409 Issue: 1-3 p119-128, 10p |
| Abstrakt: |
The uniformity of discriminator threshold and the precision of internal delay have been studied on single `Omega3/LHC1' pixel readout chips and on arrays of 24 chips containing 48 768 active pixels. On single chips we measured a threshold variation of 400e−r.m.s. for a mean threshold setting of 4000e−. The internal delay distribution shows a standard deviation of 6ns on a single chip and 16ns on the large arrays, after applying a 3-bit delay adjustment. These results, obtained using an electrical stimulus, were confirmed by tests in a beam of high-energy particles. |
| Databáze: |
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