### Abstract

The estimation of energy loss rate dE/dx for charged particles in tracking detectors using energy deposit measurements is studied. The truncated mean method is generalized to the weighted mean of the measurements. The weights are optimized for better particle separation in the energy loss rate variable, for arithmetic and geometric means, using a detailed simulation. The obtained weights are rather independent of particle momentum and track segment length. Their values are connected to the form of the corresponding energy deposit distribution, allowing for a simple universal description as a function of the number of measured track segments. While for semiconductor detectors the weighted mean estimator may be further improved with maximum likelihood methods, for gaseous detectors the (0%,55%) truncation already gives excellent results.

Original language | English |
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Pages (from-to) | 30-39 |

Number of pages | 10 |

Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |

Volume | 687 |

DOIs | |

Publication status | Published - Sep 21 2012 |

### Fingerprint

### Keywords

- Energy loss
- Silicon
- TPC

### ASJC Scopus subject areas

- Instrumentation
- Nuclear and High Energy Physics

### Cite this

*Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment*,

*687*, 30-39. https://doi.org/10.1016/j.nima.2012.05.090

**Optimized estimation of energy loss rate for charged particles from energy deposit measurements in tracking detectors.** / Siklér, F.; Szeles, Sándor.

Research output: Contribution to journal › Article

*Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment*, vol. 687, pp. 30-39. https://doi.org/10.1016/j.nima.2012.05.090

}

TY - JOUR

T1 - Optimized estimation of energy loss rate for charged particles from energy deposit measurements in tracking detectors

AU - Siklér, F.

AU - Szeles, Sándor

PY - 2012/9/21

Y1 - 2012/9/21

N2 - The estimation of energy loss rate dE/dx for charged particles in tracking detectors using energy deposit measurements is studied. The truncated mean method is generalized to the weighted mean of the measurements. The weights are optimized for better particle separation in the energy loss rate variable, for arithmetic and geometric means, using a detailed simulation. The obtained weights are rather independent of particle momentum and track segment length. Their values are connected to the form of the corresponding energy deposit distribution, allowing for a simple universal description as a function of the number of measured track segments. While for semiconductor detectors the weighted mean estimator may be further improved with maximum likelihood methods, for gaseous detectors the (0%,55%) truncation already gives excellent results.

AB - The estimation of energy loss rate dE/dx for charged particles in tracking detectors using energy deposit measurements is studied. The truncated mean method is generalized to the weighted mean of the measurements. The weights are optimized for better particle separation in the energy loss rate variable, for arithmetic and geometric means, using a detailed simulation. The obtained weights are rather independent of particle momentum and track segment length. Their values are connected to the form of the corresponding energy deposit distribution, allowing for a simple universal description as a function of the number of measured track segments. While for semiconductor detectors the weighted mean estimator may be further improved with maximum likelihood methods, for gaseous detectors the (0%,55%) truncation already gives excellent results.

KW - Energy loss

KW - Silicon

KW - TPC

UR - http://www.scopus.com/inward/record.url?scp=84862639335&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84862639335&partnerID=8YFLogxK

U2 - 10.1016/j.nima.2012.05.090

DO - 10.1016/j.nima.2012.05.090

M3 - Article

VL - 687

SP - 30

EP - 39

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

SN - 0168-9002

ER -