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Time Measurement System Based on Waveform Digitization for Time-of-Flight Mass Spectrometer.
- Source :
-
IEEE Transactions on Nuclear Science . Dec2013 Part 2, Vol. 60 Issue 6, p4588-4594. 7p. - Publication Year :
- 2013
-
Abstract
- To guarantee a good resolution of a Time-Of-Flight Mass Spectrometer (TOF-MS), a high-performance time measurement system was required. This paper presents a time measurement system based on waveform digitization. The critical part, the 2-GSPS analog-to-digital converter is implemented using the Time-Interleaved Analog-to-Digital Conversion (TIADC) technique. Through a digital post-processing algorithm, the mismatch errors between the interleaving TIADC channels are corrected, which significantly improves the ADC performance. A Peripheral Component Interconnect (PCI) bus interface is used to communicate with a computer, achieving a data transfer rate up to 20 MByte/s using Direct Memory Access (DMA). Initial test results indicate that the system timing precision is about 196 ps Root-Mean-Square (RMS), which is good enough for the given requirements. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 00189499
- Volume :
- 60
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Nuclear Science
- Publication Type :
- Academic Journal
- Accession number :
- 93280982
- Full Text :
- https://doi.org/10.1109/TNS.2013.2281593