Multichannel FPGA based MVT system for high precision time (20~ps~RMS) and charge measurement
| Title: | Multichannel FPGA based MVT system for high precision time (20~ps~RMS) and charge measurement |
|---|---|
| Authors: | Pałka, M., Strzempek, P., Korcyl, G., Bednarski, T., Niedźwiecki, Sz., Białas, P., Czerwiński, E., Dulski, K., Gajos, A., Głowacz, B., Gorgol, M., Jasińska, B., Kamińska, D., Kajetanowicz, M., Kowalski, P., Kozik, T., Krzemień, W., Kubicz, E., Mohhamed, M., Raczyński, L., Rudy, Z., Rundel, O., Salabura, P., Sharma, N. G., Silarski, M., Smyrski, J., Strzelecki, A., Wieczorek, A., Wiślicki, W., Zieliński, M., Zgardzińska, B., Moskal, P. |
| Publication Year: | 2017 |
| Collection: | High Energy Physics - Experiment Physics (Other) |
| Subject Terms: | Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Physics - Medical Physics |
| More Details: | In this article it is presented an FPGA based $M$ulti-$V$oltage $T$hreshold (MVT) system which allows of sampling fast signals ($1-2$ ns rising and falling edge) in both voltage and time domain. It is possible to achieve a precision of time measurement of $20$ ps RMS and reconstruct charge of signals, using a simple approach, with deviation from real value smaller than 10$\%$. Utilization of the differential inputs of an FPGA chip as comparators together with an implementation of a TDC inside an FPGA allowed us to achieve a compact multi-channel system characterized by low power consumption and low production costs. This paper describes realization and functioning of the system comprising 192-channel TDC board and a four mezzanine cards which split incoming signals and discriminate them. The boards have been used to validate a newly developed Time-of-Flight Positron Emission Tomography system based on plastic scintillators. The achieved full system time resolution of $\sigma$(TOF) $\approx 68$ ps is by factor of two better with respect to the current TOF-PET systems. Comment: Accepted for publication in JINST, 10 pages, 8 figures |
| Document Type: | Working Paper |
| DOI: | 10.1088/1748-0221/12/08/P08001 |
| Access URL: | http://arxiv.org/abs/1707.03565 |
| Accession Number: | edsarx.1707.03565 |
| Database: | arXiv |
| DOI: | 10.1088/1748-0221/12/08/P08001 |
|---|