6533b82efe1ef96bd129447f

RESEARCH PRODUCT

Backtracing particle rays through magnetic spectrometers: avoiding systematic errors in the reconstruction of target coordinates

J.m. FriedrichTh. VeitE. A. J. M. Offermann

subject

PhysicsSystematic errorNuclear and High Energy PhysicsMatrix (mathematics)OpticsSpectrometerbusiness.industryDetectorParticlebusinessInstrumentationComputational physics

description

Abstract The procedures used to model [J. Friedrich, Nucl. Instr. and Meth. A 293 (1990) 575] or to determine [N. Voegler et al., Nucl. Instr. and Meth. A 249 (1986) 337, H. Blok et al., ibid., vol. A 262 (1987) 291, and E.A.J.M. Offermann et al., ibid., vol. A 262 (1987) 298] the mapping properties of a magnetic spectrometer are based on a minimization of the variance of target coordinates . We show that backtracing with matrix elements, determined in this way, may contain systematic errors. As alternative, we propose to minimize the variance of the detector coordinates . This procedure avoids these systematic errors.

https://doi.org/10.1016/0168-9002(93)91265-o