BTTB 7

Abstracts

Allpix Squared

• Speaker: Simon Spannagel
• Status: Accepted
• Abstract: Allpix Squared is a generic open-source simulation framework for pixel detectors. Its goal is to ease the implementation of detailed simulations for both single detectors and more complex setups such as beam telescopes. It has successfully been used for a range of simulations, including test beam data from thin planar silicon sensors as well as monolithic CMOS detectors with a thin high-resistivity epitaxial layer used in the CLIC detector studies. The simulation chain is arranged with the help of intuitive configuration files and an extensible system of modules, which implement the separate simulation steps. Detailed electric field maps imported from TCAD simulations can be used to precisely model the drift behavior of the charge carriers, bringing a new level of realism to the simulation of particle detectors. This contribution provides an overview of the framework and its continuous development over the last 1.5 years, with a special focus on newly added features and further extension plans for the future.
• Slides

Corryvreckan reconstruction software

• Speaker: Morag Jean Williams
• Status: Accepted
• Abstract: Corryvreckan is a modular reconstruction framework developed for test beam data analysis within the CLICdp collaboration. It has been created in the same spirit as Allpix squared, and thus shares its philosophies of high configurability and flexibility, user-friendliness, and high standard of documentation. Corryvreckan’s modular structure allows for separation between the framework core and the implementation of the algorithms in each module. This allows users to ‘plug-in’ the wanted modules and configure their parameters easily from one configuration file. The software is written in modern C++, following the C++11 and C++14 standards and has a continually updated user manual. Notable features of Corryvreckan are the 4D tracking capabilities, online monitoring module useful for checking data quality during data taking, and the ability to use different combinations of triggered and trigger-less devices. In this talk the software framework will be outlined, and details of the module capabilities discussed. Examples of reconstructed data and configuration set-ups will also be shown. In conjunction with this talk there will be a 2.5 hours ‘hands-on’ tutorial on Corryvreckan during BTTB7.
• Slides

A versatile data acquisition system based on programmable hardware

• Speaker: Tomas Vanat
• Status: Accepted
• Abstract: The process of a detector development includes a subtask concerning the readout of data and controlling the detector. It typically consist of designing hardware in form of a readout board containing programmable logic to provide an interface to the chip, power supplies for biasing the detector chip, as well as DACs and ADCs for setting and measuring operation parameters, test pulses, etc. One also needs to write software for control and readout. This process can be repeated again and again for each new chip developed, which requires different voltage levels or different number of data lines. The CaRIBOu system, on the other hand, provides a robust, versatile DAQ system, which can be easily adjusted to the needs of different detector chips. Using such a system saves development cost and reduces the time needed to get first data from the detector. CaRIBOu is a combination of hardware and software modules that forms a stand-alone readout and DAQ system for detector prototypes. It was initially developed for testing newly developed pixel-detector chips for ATLAS and for a future CLIC detector. Adding support for a new chip is a matter of writing a piece of code performing an interface between the chip-specific features and the standard data and control interface of the CaRIBOu system. The system is based on a Xilinx Zynq System-on-Chip (SoC) architecture combining the power of a programmable hardware (FPGA) and a full Linux operating system allowing to run software in a higher programming language. It can run either stand-alone, storing data to a local filesystem, or connected via network interface to a data storage or a superior control system. The data decoding and analysis can be done either directly in the system both in software and in FPGA-based hardware, or it can be stored in a raw format and analysed offline. The talk presents the structure and capabilities of the DAQ system and shows example applications and future plans.
• Slides

Testbeam Characterization of the ATLASpix _Simple Pixel Sensor Prototype in View of the Requirements for the CLIC Tracking Detector

• Speaker: Jens Kroeger
• Status: Accepted
• Abstract: The ATLASpix_Simple is a Monolithic Active Pixel Sensor prototype produced in a commercial 180nm HV-CMOS process. It contains a self-triggered 25 x 400 pixel array with a pixel size of 130 um x 40 um. The chip features tunable in-pixel comparators and a digital periphery allowing for on-chip hit digitization. In order to characterize the chip and investigate its performance with respect to efficiency, timing and spatial resolution, testbeam campaigns are carried out in which the prototype is placed in a beam telescope consisting of multiple layers of pixel sensors. The beam telescope provides reference tracks to which the hits on the device-under-test can be compared with a high spatial and time resolution. This talk will introduce the ATLASpix sensor prototype. Furthermore, results from the testbeam performed with the CLICdp Timepix3 Beam Telescope at the H6 beamline of the SPS in November 2018 will be presented in view of the requirements of the CLIC tracking detector.

• Slides