Precision charge amplification and digitization system for a scintillating and lead glass array

• Published in: IEEE transactions on nuclear science Vol. 36; no. 1; pp. 680 - 686
• Main Authors: Delchamps, S.W., Rameika, R., Arenton, M., Chen, T.Y., Conetti, S., Cox, B., Etemadi, B., Fortney, L., Guffey, K., Haire, M., Ioannu, P., Jenkins, C.M., Judd, D.J., Kourkoumelis, C., Koutentakis, J., Kuzminski, J., Lai, K.W., Manousakis-Katsikakis, A., Mao, H., Marchionni, A., Mazur, P.O., Murphy, C.T., Pramantiotis, T., Resvanis, L.K., Rosati, M., Rosen, J.L., Shen, C.H., Shen, Q., Simard, A., Smith, R.P., Spiegel, L., Stairs, D., Tesarek, R., Tucker, W., Turkington, T., Turkot, F., Turnbull, L., Tzamarias, S., Vassiliou, M., Voulgaris, G., Wagoner, D.E., Wang, C., Yang, W., Yao, N., Zhang, N., Zhang, X., Zioulas, G.
• Format: Journal Article
• Language: English
• Published: IEEE 01-02-1989
• Subjects: Analog-digital conversion; Energy measurement; Energy resolution; Glass; Instruments; Particle beams; Pulse generation; Spectroscopy; Stability; Testing
• ISSN: 0018-9499; 1558-1578
• DOI: 10.1109/23.34526

A 544-channel low-noise, high-rate precision charge-amplification and ADC (analog/digital converter) system was constructed for the Fermilab Experiment 705 electromagnetic calorimeter, which uses SCG1-C scintillating glass and SF5 lead glass instrumented with photomultiplier tubes. A general discussion of the system is given, and the charge amplification, fast-trigger-pulse generation, and analog/digital conversion aspects of the system are presented in more detail. Performance is evaluated using data from Experiment 705 and from offline tests. Short- and long-term pedestal stability, baseline recovery and rate capability, linearity of response, and crosstalk between channels are discussed.< >