J W Durkee Jr et al 1998 Phys. Med. Biol. 43 2975 doi:10.1088/0031-9155/43/10/021
J W Durkee Jr, P P Antich, E N Tsyganov, A Constantinescu, P V Kulkarni, B J Smith, G M Arbique, M A Lewis, T Nguyen, A Raheja, G Thambi and R W Parkey
Show affiliationsThe widely applied single-interaction analytic expression characterizing the energy resolution component of the angular resolution precision for an electronically collimated point source is extended to include multiple-interaction Compton scatter sequences as well as sequences terminated by photoelectric absorption. The analytic formulation is developed using the statistical variance of the mean for components comprising composite, multivariate resolution precision estimators. It is demonstrated that enhanced resolution precision in the incident interaction scatter angle is attained when use is made of information from multiple interactions. An improvement in the resolution precision of up to approximately 40% is observed for triple Compton scatter. Comparison of the analytic estimates with Monte Carlo/chi-square results shows good agreement.
87.57.uh Single photon emission computed tomography (SPECT)
07.85.Fv X- and gamma-ray sources, mirrors, gratings, and detectors
Issue 10 (October 1998)
Received 11 November 1997, in final form 19 May 1998
J W Durkee Jr et al 1998 Phys. Med. Biol. 43 2975
Wei Liu et al. 2009 ApJ 698 632
J W Durkee Jr et al 1998 Phys. Med. Biol. 43 2949
K Thornton and Mark Asta 2005 Modelling Simul. Mater. Sci. Eng. 13 R53
M C Fischer et al 2001 J. Opt. B: Quantum Semiclass. Opt. 3 279
S M Bidoki et al 2007 J. Micromech. Microeng. 17 967
T K Ko et al 2006 Semicond. Sci. Technol. 21 1064
Raghu N Kacker and James F Lawrence 2007 Metrologia 44 117
Keith Promislow and J Nathan Kutz 2000 Nonlinearity 13 675
Simon D M White 2007 Rep. Prog. Phys. 70 883