PMID- 24007105
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20140422
LR  - 20130906
IS  - 1089-7623 (Electronic)
IS  - 0034-6748 (Linking)
VI  - 84
IP  - 8
DP  - 2013 Aug
TI  - A digitizer based compact digital spectrometer for ion beam analysis using Field 
      Programmable Gate Arrays and various energy algorithms.
PG  - 085105
LID - 10.1063/1.4817211 [doi]
AB  - We report on the implementation of a compact multi-detector fully digital 
      spectrometer and data acquisition system at a nuclear microprobe for ion beam 
      analysis and imaging. The spectrometer design allows for system scalability with 
      no restriction on the number of detectors. It consists of four-channel high-speed 
      digitizer modules for detector signal acquisition and one low-speed 
      digital-to-analog converter (DAC) module with two DAC channels and additional 
      general purpose inputs∕outputs to control ion beam scanning and data acquisition. 
      Each digitizer module of the spectrometer provides its own Field Programmable 
      Gate Array (FPGA) as digital signal processing unit to analyze detector signals 
      as well as to synchronize the ion beam position in hard real-time. With the 
      customized FPGA designs for all modules, all calculation intensive tasks are 
      executed inside the modules, which reduces significantly the data stream to and 
      CPU load on the control computer. To achieve an optimal energy resolution for all 
      detector∕preamplifier pulse shape characteristics, a user-definable infinite 
      impulse response filter with high throughput for energy determination was 
      implemented. The new spectrometer has an online data analysis feature, a compact 
      size, and is able to process any type of detector signals such as particle 
      induced x-ray emission, Rutherford backscattering spectrometry, or scanning 
      transmission ion microscopy.
FAU - Jager, Markus
AU  - Jager M
AD  - Faculty of Mathematics and Computer Science, University of Leipzig, PF 100920, 
      04009 Leipzig, Germany.
FAU - Reinert, Tilo
AU  - Reinert T
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Rev Sci Instrum
JT  - The Review of scientific instruments
JID - 0405571
EDAT- 2013/09/07 06:00
MHDA- 2013/09/07 06:01
CRDT- 2013/09/07 06:00
PHST- 2013/09/07 06:00 [entrez]
PHST- 2013/09/07 06:00 [pubmed]
PHST- 2013/09/07 06:01 [medline]
AID - 10.1063/1.4817211 [doi]
PST - ppublish
SO  - Rev Sci Instrum. 2013 Aug;84(8):085105. doi: 10.1063/1.4817211.