Test of charge-to-time conversion and multi-hit TDC technique for the BELLE CDC readout

• Published in: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 405; no. 1; pp. 105 - 110
• Main Authors: Fujita, Y., Ujiie, N., Yoshida, K., Iwasaki, Y., Ohnishi, Y., Okazaki, N., Sakai, Y., Uemura, G., Uno, S., Yokoyama, T., Itami, S., Matsumoto, T., Nitoh, O., Ohshima, T., Okabe, T., Sugimoto, M., Sugiyama, A., Suitoh, S., Suzuki, S., Takahashi, K., Tamagawa, Y., Tomoto, M., Yamaki, T.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-03-1998
• Subjects: Drift chamber; QTC; Readout electronics; QTC; Drift chamber; 07.50.Qx; 29.40.Gx; Readout electronics
• ISSN: 0168-9002; 1872-9576
• DOI: 10.1016/S0168-9002(97)01185-6

We tested a new CDC readout scheme utilizing a Charge-to-Time conversion (QTC) technique and multi-hit TDC to record both time and charge information. The new scheme is planned to be used in the BELLE experiment at the KEK B-Factory. We built a prototype Shaper/QTC board and examined the performance with a beam test. This new scheme worked successfully. We obtained the same spatial and
dE
dx
resolutions as those using an ordinary TDC and ADC readout scheme.