A simple timestamping data acquisition system for ToF-ERDA

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:347

Article

Rossi, Mikko¹  Rahkila, Panu¹  Kettunen, Heikki¹  Laitinen, Mikko¹ 

[1] Univ Jyvaskyla, Dept Phys, FI-40014 Jyvaskyla, Finland

关键词: Data acquisition;    FPGA;    ToF-ERDA;    LabVIEW;    Timestamping;   

DOI  :  10.1016/j.nimb.2015.01.055

来源: Elsevier

【 摘 要 】

A new data acquisition system, ToF-DAQ has been developed for a ToF-ERDA telescope and other ToF-E and ToF-ToF measurement systems. ToF-DAQ combines an analogue electronics front-end to asynchronous time stamped data acquisition by means of a FPGA device. Coincidences are sought solely in software based on the timestamps. Timestamping offers more options for data analysis as coincidence events can be built also in offline analysis. The system utilizes a National Instruments R-series FPGA device and a Windows PC as a host computer. Both the FPGA code and the host software were developed using the National Instruments Lab VIEW graphical programming environment. Up to eight NIM ADCs can be handled by a single FPGA. The host computer and the FPGA can process total continuous count rates of over 750,000 counts/s with a timestamping resolution of 8.33 ns. (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

Free