PMID- 20625466
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20211020
IS  - 1095-7863 (Print)
IS  - 1095-7863 (Linking)
VI  - 2009
DP  - 2009 Nov 1
TI  - Design of a Real Time FPGA-based Three Dimensional Positioning Algorithm.
PG  - 1082-3654
AB  - We report on the implementation and hardware platform of a real time 
      Statistics-Based Processing (SBP) method with depth of interaction processing for 
      continuous miniature crystal element (cMiCE) detectors using a sensor on the 
      entrance surface design. Our group previously reported on a Field Programmable 
      Gate Array (FPGA) SBP implementation that provided a two dimensional (2D) 
      solution of the detector's intrinsic spatial resolution. This new implementation 
      extends that work to take advantage of three dimensional (3D) look up tables to 
      provide a 3D positioning solution that improves intrinsic spatial resolution. 
      Resolution is most improved along the edges of the crystal, an area where the 2D 
      algorithm's performance suffers. The algorithm allows an intrinsic spatial 
      resolution of ~0.90 mm FWHM in X and Y and a resolution of ~1.90 mm FWHM in Z 
      (i.e., the depth of the crystal) based upon DETECT2000 simulation results that 
      include the effects of Compton scatter in the crystal. A pipelined FPGA 
      implementation is able to process events in excess of 220k events per second, 
      which is greater than the maximum expected coincidence rate for an individual 
      detector. In contrast to all detectors being processed at a centralized host, as 
      in the current system, a separate FPGA is available at each detector, thus 
      dividing the computational load. A prototype design has been implemented and 
      tested using a reduced word size due to memory limitations of our commercial 
      prototyping board.
FAU - Johnson-Williams, Nathan G
AU  - Johnson-Williams NG
AD  - The University of Washington Department of Electrical Engineering, Seattle, WA 
      USA.
FAU - Miyaoka, Robert S
AU  - Miyaoka RS
FAU - Li, Xiaoli
AU  - Li X
FAU - Lewellen, Tom K
AU  - Lewellen TK
FAU - Hauck, Scott
AU  - Hauck S
LA  - eng
GR  - R01 CA136569/CA/NCI NIH HHS/United States
GR  - R33 EB001563/EB/NIBIB NIH HHS/United States
GR  - R01 EB002117-09/EB/NIBIB NIH HHS/United States
GR  - R33 EB001563-03/EB/NIBIB NIH HHS/United States
GR  - R01 CA136569-03/CA/NCI NIH HHS/United States
GR  - R21 EB001563/EB/NIBIB NIH HHS/United States
GR  - R33 EB001563-04/EB/NIBIB NIH HHS/United States
GR  - R01 EB002117/EB/NIBIB NIH HHS/United States
GR  - R01 EB002117-11/EB/NIBIB NIH HHS/United States
PT  - Journal Article
PL  - United States
TA  - IEEE Nucl Sci Symp Conf Rec (1997)
JT  - IEEE Nuclear Science Symposium conference record. Nuclear Science Symposium
JID - 101492453
PMC - PMC2898207
MID - NIHMS207137
EDAT- 2010/07/14 06:00
MHDA- 2010/07/14 06:01
PMCR- 2010/11/01
CRDT- 2010/07/14 06:00
PHST- 2010/07/14 06:00 [entrez]
PHST- 2010/07/14 06:00 [pubmed]
PHST- 2010/07/14 06:01 [medline]
PHST- 2010/11/01 00:00 [pmc-release]
AID - 10.1109/NSSMIC.2009.5401848 [doi]
PST - ppublish
SO  - IEEE Nucl Sci Symp Conf Rec (1997). 2009 Nov 1;2009:1082-3654. doi: 
      10.1109/NSSMIC.2009.5401848.