Weightfield2: A fast simulator for silicon and diamond solid state detector

Cenna, F.; Cartiglia, N.; Friedl, M.; Kolbinger, B.; Sadrozinski, H.F.-W.; Seiden, A.; Zatserklyaniy, A.; Zatserklyaniy, A.

doi:10.1016/j.nima.2015.04.015

Cited by 119 publications

(90 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We have developed a full simulation program, Weightfield2 (WF2) [17], [22], [23], with the specific aim of assessing the timing capability of silicon sensors with internal gain. The program has been validated by comparing its predictions for MIP and alpha particles with both measured signals and TCAD Sentaurus simulations, finding excellent agreement in both cases.…”

Section: Discussionmentioning

confidence: 99%

4D tracking with ultra-fast silicon detectors

2017

View full text Add to dashboard Cite

The evolution of particle detectors has always pushed the technological limit in order to provide enabling technologies to researchers in all fields of science. One archetypal example is the evolution of silicon detectors, from a system with a few channels 30 years ago, to the tens of millions of independent pixels currently used to track charged particles in all major particle physics experiments. Nowadays, silicon detectors are ubiquitous not only in research laboratories but in almost every high-tech apparatus, from portable phones to hospitals. In this contribution, we present a new direction in the evolution of silicon detectors for charge particle tracking, namely the inclusion of very accurate timing information. This enhancement of the present silicon detector paradigm is enabled by the inclusion of controlled low gain in the detector response, therefore increasing the detector output signal sufficiently to make timing measurement possible. After providing a short overview of the advantage of this new technology, we present the necessary conditions that need to be met for both sensor and readout electronics in order to achieve 4D tracking. In the last section, we present the experimental results, demonstrating the validity of our research path.

show abstract

Section: Discussionmentioning

confidence: 99%

4D tracking with ultra-fast silicon detectors

2017

View full text Add to dashboard Cite

show abstract

“…Further experimental work might focus on the study on the width of the signal: the increase in the saturation velocity of the carriers due to lower temperatures might induce a shorter and steeper signal. Weightfield2 [5] proved itself to be a valuable assist in this study and offered a good description of the performance of the thin sensors; further work in improving it would hence benefit the knowledge of these performances.…”

Section: Discussionmentioning

confidence: 99%

“…In the simulation software used in the present work, Weightfield21 (WF2) [5], four models for the impact ionisation rate as function of the temperature are implemented and currently under study. The van Overstraeten and Massey models are based on the Chynoweth law (eq.2.2) while the other two, the Bologna and the Okuto models, each proposed their own law for α e,h .…”

Section: Temperature Dependance Of Gain In a Lgadmentioning

confidence: 99%

Temperature dependence of the response of ultra fast silicon detectors

et al. 2016

Self Cite

View full text Add to dashboard Cite

show abstract

“…These variations not only produce an overall change in signal magnitude, which is at the root of the time walk effect (that we assumed perfectly corrected by electronics), but also produce a more irregular current signal (Landau noise). The top part in Figure 5 b) shows 3 examples of the simulated [3] energy deposition of a minimum ionizing particle, while the bottom part the associated generated current signals and their components. As the picture shows, the variations are rather large and they can severely degrade the achievable time resolution.…”

Section: The Effect Landau Fluctuations: Time Walk and Landau Noisementioning

confidence: 99%

“…The additional doping layer present at the n − p junction in the LGAD design, Figure 8, generates the high field necessary to achieve charge multiplication. We have developed a full simulation program, WF2 [3], to study the property of signal formation in silicon detectors and the effect of gain. According to WF2, LGAD have the potentiality of replacing standard silicon sensors in almost every application, with the added advantage of having a large signal dV /dt and therefore being able to measure time accurately.…”

Section: Pos(ifd2015)026mentioning

confidence: 99%