PMID- 25273722
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20150521
LR  - 20141002
IS  - 1089-7623 (Electronic)
IS  - 0034-6748 (Linking)
VI  - 85
IP  - 9
DP  - 2014 Sep
TI  - A field programmable gate array-based time-resolved scaler for collinear laser 
      spectroscopy with bunched radioactive potassium beams.
PG  - 093503
LID - 10.1063/1.4895461 [doi]
AB  - A new data acquisition system including a Field Programmable Gate Array (FPGA) 
      based time-resolved scaler was developed for laser-induced fluorescence and beam 
      bunch coincidence measurements. The FPGA scaler was tested in a collinear 
      laser-spectroscopy experiment on radioactive (37)K at the BEam COoler and LAser 
      spectroscopy (BECOLA) facility at the National Superconducting Cyclotron 
      Laboratory at Michigan State University. A 1.29 mus bunch width from the buncher 
      and a bunch repetition rate of 2.5 Hz led to a background suppression factor of 
      3.1 x 10(5) in resonant photon detection measurements. The hyperfine structure of 
      (37)K and its isotope shift relative to the stable (39)K were determined using 5 
      x 10(4) s(-1) (37)K ions injected into the BECOLA beam line. The obtained 
      hyperfine coupling constants A((2)S(1/2)) = 120.3(1.4) MHz, A((2)P(1/2)) = 
      15.2(1.1) MHz, and A((2)P(3/2)) = 1.4(8) MHz, and the isotope shift deltanu(39, 37) = 
      -264(3) MHz are consistent with the previously determined values, where 
      available.
FAU - Rossi, D M
AU  - Rossi DM
AD  - National Superconducting Cyclotron Laboratory, Michigan State University, East 
      Lansing, Michigan 48824, USA.
FAU - Minamisono, K
AU  - Minamisono K
AD  - National Superconducting Cyclotron Laboratory, Michigan State University, East 
      Lansing, Michigan 48824, USA.
FAU - Barquest, B R
AU  - Barquest BR
AD  - National Superconducting Cyclotron Laboratory, Michigan State University, East 
      Lansing, Michigan 48824, USA.
FAU - Bollen, G
AU  - Bollen G
AD  - National Superconducting Cyclotron Laboratory, Michigan State University, East 
      Lansing, Michigan 48824, USA.
FAU - Cooper, K
AU  - Cooper K
AD  - National Superconducting Cyclotron Laboratory, Michigan State University, East 
      Lansing, Michigan 48824, USA.
FAU - Davis, M
AU  - Davis M
AD  - National Superconducting Cyclotron Laboratory, Michigan State University, East 
      Lansing, Michigan 48824, USA.
FAU - Hammerton, K
AU  - Hammerton K
AD  - National Superconducting Cyclotron Laboratory, Michigan State University, East 
      Lansing, Michigan 48824, USA.
FAU - Hughes, M
AU  - Hughes M
AD  - National Superconducting Cyclotron Laboratory, Michigan State University, East 
      Lansing, Michigan 48824, USA.
FAU - Mantica, P F
AU  - Mantica PF
AD  - National Superconducting Cyclotron Laboratory, Michigan State University, East 
      Lansing, Michigan 48824, USA.
FAU - Morrissey, D J
AU  - Morrissey DJ
AD  - National Superconducting Cyclotron Laboratory, Michigan State University, East 
      Lansing, Michigan 48824, USA.
FAU - Ringle, R
AU  - Ringle R
AD  - National Superconducting Cyclotron Laboratory, Michigan State University, East 
      Lansing, Michigan 48824, USA.
FAU - Rodriguez, J A
AU  - Rodriguez JA
AD  - National Superconducting Cyclotron Laboratory, Michigan State University, East 
      Lansing, Michigan 48824, USA.
FAU - Ryder, C A
AU  - Ryder CA
AD  - National Superconducting Cyclotron Laboratory, Michigan State University, East 
      Lansing, Michigan 48824, USA.
FAU - Schwarz, S
AU  - Schwarz S
AD  - National Superconducting Cyclotron Laboratory, Michigan State University, East 
      Lansing, Michigan 48824, USA.
FAU - Strum, R
AU  - Strum R
AD  - National Superconducting Cyclotron Laboratory, Michigan State University, East 
      Lansing, Michigan 48824, USA.
FAU - Sumithrarachchi, C
AU  - Sumithrarachchi C
AD  - National Superconducting Cyclotron Laboratory, Michigan State University, East 
      Lansing, Michigan 48824, USA.
FAU - Tarazona, D
AU  - Tarazona D
AD  - National Superconducting Cyclotron Laboratory, Michigan State University, East 
      Lansing, Michigan 48824, USA.
FAU - Zhao, S
AU  - Zhao S
AD  - National Superconducting Cyclotron Laboratory, Michigan State University, East 
      Lansing, Michigan 48824, USA.
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Rev Sci Instrum
JT  - The Review of scientific instruments
JID - 0405571
EDAT- 2014/10/03 06:00
MHDA- 2014/10/03 06:01
CRDT- 2014/10/03 06:00
PHST- 2014/10/03 06:00 [entrez]
PHST- 2014/10/03 06:00 [pubmed]
PHST- 2014/10/03 06:01 [medline]
AID - 10.1063/1.4895461 [doi]
PST - ppublish
SO  - Rev Sci Instrum. 2014 Sep;85(9):093503. doi: 10.1063/1.4895461.