3rd Beam Telescopes and Test Beams Workshop 2015

19 Jan 2015, 08:00 → 21 Jan 2015, 13:30 Europe/Berlin

Seminar Room 4a/b (Bld. 1b, OG) (DESY Hamburg)

Hendrik Jansen (DESY), Igor Rubinskiy (DESY)

FIND THE MAP TO THE REGISTRATION DESK HERE:

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https://indico.desy.de/materialDisplay.py?materialId=0&confId=10685
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Similar to the June 2014 edition of the "Beam Telescopes and Testbeams for Detector R&D" workshop, this workshop will cover a wide range of topics related to tools needed for detector studies in testbeams and aims at bringing together both experts and newcomers to the field.
The workshop's content is mostly shaped by your contributions, so please consider sharing your knowledge and experience at the workshop. In order to participate with an oral presentation, we kindly ask you to submit a short abstract using the "Call for Abstracts" section. Please indicate the estimated time for your talk.
The workshop will be located in Seminar Room 4a/b in the main building (building 1) on the DESY campus in Hamburg. Instructions on how to reach the seminar room can be found here.
On Tuesday night (January 20th), there will be a workshop dinner cruise on the Elbe. We'll add more information about the cruise later. During registation, you can indicate if you prefer a vegaterian option.
The online registration fee for this workshop is 60 EUR. Please register online at the latest on 31.12.2014. Late on-site registration might be possible at an increased fee of 80 EUR. The fee includes coffe/tea/cookies/fruits during the breaks and the workshop dinner cruise.
Please pay your fee and collect your badge between 8:15 am and 9:15 am on January 19th at the registration desk.

map find-the-WS.pdf

Poster poster

Monday, 19 January

Registration

Welcome

Convener: Dr Hendrik Jansen (DESY)

1 A warm welcome to the 3rd BTTB workshop

Speaker: Hendrik Jansen

Slides welcome_v2.pdf welcome_v3.pdf

Statistics in test beam analysis

2 Statistics in test beam analysis

The talk will go through the following topipcs: - Least squares estimation, Gauss-Markov theorem - Broken lines, Chi² minimization - Test statistics (Chi², p-values) - Kalman Filtering - Track finding with the combinatorial Kalman filter - Outlier rejection, Deterministic Annealing Filter - System parameters and fitted chi² - Alignment - Estimation of resolution and material distribution

Speaker: Håvard Gjersdal

Slides hgjersdal-notes.pdf hgjersdal.pdf

3 A first look at telescope track finding with fast Hough transformation

A track finding processor based on fast Hough transformation for the LPTPC has been implemented in ILCSOFT. This has been successfully tried on beam telescope data too.

Speaker: Claus Kleinwort (DESY)

Slides 11_claus_bttb-2015.pdf

4 Alignment of the CMS tracking detector

The physics performance of the CMS experiment depends crucially on its tracking detector, which consists of 25000 silicon sensors. In order to achieve the required tracking precision, it is necessary to align the positions and orientations of the sensors at micrometer level, which involves the adjustment of approximately 200000 parameters. They are determined simultaneously in a track-based alignment procedure which minimizes the residuals between the measured and expected hit positions of the particle trajectories using the Millepede II program. In this presentation, the alignment procedure at CMS is illustrated and its performance is discussed.

Speaker: Mr Matthias Schröder (DESY)

Slides 2015-01-19_TestBeamWS_HH_schroeder.pdf

10:30 Coffee break

Test beam facilities

5 Status of the PS/SPS Testbeam Facilities

the Status of the PS/SPS Testbeam Facilities are presented.

Speaker: Dr Henric Wilkens (CERN)

Slides HW20150119-DESY.pptx

6 Status of SLAC Testbeams

We present the present status and schedule of various test beams at SLAC with emphasis on ESTB.

Speaker: Dr Carsten Hast (SLAC National Accelerator Laboratory)

Slides Hast_SLAC_TestFacilities_DESY_TrackerWorkshop2015.pptx

7 Status of the DESY Testbeam Facility

We present the present status and schedule of various test beams at DESY.

Speakers: Marcel Stanitzki, Mr Marcel Stanitzki (DESY)

Slides telescope-workshop2015.pdf

Questions and Answers

12:15 Lunch

Test beam: Integration and data taking

8 Characterisation of Timepix3 hybrid pixel detector assemblies and integration with the AIDA telescope

A vertex detector concept based on the hybrid planar pixel detector technology is currently under development for the proposed Compact Linear Collider (CLIC). Assemblies using thin planar pixel sensors (50-300 um) hybridised with Timepix readout ASICs have been characterised in previous testbeams at DESY. In this talk we present the integration in the AIDA telescope infrastructure as well as measurements performed with new Timepix3 assemblies at the CERN PS and SPS.

Speaker: Dr Samir Arfaoui (CERN)

Slides SamirDESYWS2015.pdf

9 Integration of an ROI plane in the AIDA telescope

One key addition to the telescope developed within AIDA is the implementation of a size configurable trigger plane. This plane is realized with a hybrid pixel detector consisting of a sensor bump bonded to the ATLAS pixel readout chip FE-I4. Its masking capability allows the definition of a user-defined region-of-interest (ROI) trigger area, that can be tuned to match the area defined by the device under test (DUT). Such a flexible setup is presented and the operation is demonstrated. The integration of the DUT into the telescope and the online results obtained with it using the ROI trigger will be shown.

Speakers: Theresa Obermann, Ms Theresa Obermann (Physikalisches Institut Universität Bonn), Theresa Obermann (Physikalisches Institut Universität Bonn)

Slides 2015-BTTB-ROI-plane-Obermann.pdf

10 Integration of User DAQ system

Description of the integration of User Data Acquisition Systems to the EUDAQ telescope software. In addition to the traditional EUDAQ interface through the C++ producer class this talk shows the new python interface to the producer class.

Speaker: Mr Richard Peschke (DESY)

Test beam: Data analysis

11 Measurement of the two tracks separation resolution in 3D-IBL modules

In this work we aim to measure the two track separation resolution in the 3D pixel sensors placed at the Inner Barrel Layer (IBL) recently implemented in the ATLAS experiment. Some simulation studies have been done to estimate the test beam conditions and results. The main objective of this measurement will be to improve the cluster reconstruction, validate the simulation and finally to validate the reconstruction algorithms for the physics analysis.

Speaker: Dr Francisca Munoz (University of Manchester)

Slides fmunoz_2tracksep_DESY.pdf

15:15 Coffee break

Test beam: Data analysis

12 Characterisation of capacitively coupled HV-CMOS devices using the CLICpix ASIC and AIDA telescope

One of the current strands of research towards a vertex detector for the Compact Linear Collider (CLIC) is the possible use of HV-CMOS sensors capacitively coupled to a hybrid pixel ASIC, implemented in 65nm technology. Data with a prototype of such a detector has been taken at the SPS using the AIDA telescope. A summary of the results is presented, showing the data-taking strategy with the telescope and the analysis chain used to obtain results.

Speaker: Daniel Hynds (CERN)

Slides dhynds19Jan2015.pdf

13 High Rate Testbeam at FNAL with the CMS Pixel Telescope

This contribution will give an overview over efforts for the CMS Pixel High rate Test Beam conducted at the FNAL high rate tracking area in 2014. The CMS Pixel telescope is introduced and the experience with the FNAL test beam for tracking is presented together with some preliminary results.

Speaker: Mr Simon Spannagel (DESY - CMS)

Slides 2015-01-19-telescope-workshop-fnal-testbeam.pdf

14 Initial results from ATLAS Upgrade barrel strip detectors using the AIDA telescope

In May 2014, testbeam data was taken with barrel strip detectors proposed for the ATLAS upgrade utilising the AIDA telescope at SLAC Mini strip sensors assembled with the newly fabricated ABC130 front end readout chip were examined to study possible variations in channel gain seen in previous lab tests Secondly, full prototype strip modules assembled with the ABC130 chip were characterised to test the new Fast Cluster Finder feature of the chip. This FCF block, along with an external correlator, allows to find cluster hit coincidences and relate them to track transverse momentum information of the incident particles Reconstruction of data has been performed using the EUTelescope software, with modifications shown for pixel-to-strip DUT conversion

Speaker: Mr John Keller (DESY)

Slides Keller15-01-19.pdf

15 Alignment of double sided ladders and mini-vectors

The concept of double sided ladders made of pixel sensors allows the reconstruction of mini-vectors between the two sides. These mini-vectors can improve the pattern recognition. In this perspective, new methods of tracking and alignment with mini-vectors can be studied. In particular, standalone alignment of a double sided layer with mini-vectors using the overlapping regions of two consecutive ladders can be studied. A GEANT4 simulation and a digitizer of MIMOSA-28 sensor have been developped in order to study this subject. In the context of the AIDA telescope, we will show a local alignment method of double sided ladder (PLUME) and SALAT plane without mini-vectors. Then, we will show first studies on alignment with mini-vectors in ideal case. Finally we will discuss the validity of this method in the real case of ILC.

Speaker: Mr Cousin Loic (IPHC)

Slides Alignment_with_miniVectors_L_Cousin.pdf

Questions and Answers

Tuesday, 20 January

Test beam: Data analysis

16 The present status of reconstruction of large-multiplicity and long-staggered pixel run with EUTelescope

Several testbeams have been done for the pixel sensor development which is geared toward the HL-LHC upgrade of the ATLAS inner detector. The main topic covered in this talk is the reconstruction of large-multiplicity run data from ATLAS ITk testbeam at SLAC 2014 and long-staggered pixel data taken at DESY 2013. Those reconstructions have been in progress with the EUTelescope software framework (both v00.09.03 and v1.0.0-beta.1). I will present the current status of those reconstructions, especially focusing on the method used to apply long-staggered geometry and to deal with large-multiplicity data.

Speaker: Mr Kimihiko KIMURA (Tokyo Institute of Technology)

Slides DESY_workshop_Kimura.pdf

17 ATLAS Pixel Testbeam Reconstruction

The most recent changes and modifications to EUTelescope for the ATLAS pixel community will be presented. These include improvements for the internal geometry handling, as well as fundamental changes to the framework which are a mandatory prerequisite for novel development. In addition, a brief outlook on future features will be given.

Speaker: Mr Tobias Bisanz (Uni Göttingen (ATLAS))

Slides Bisanz.pdf

18 Reconstructing various pixels geometries as part of the ATLAS PPS/ITk project

The standard pixel geometry studied as part of the ATLAS Upgrade effort is 250x50um^2. In addition, other pixel geometries have also been investigated over several testbeams including: 125x100, 167x125 and 500x25 um^2. Alternative geometries introduce some additional issues in reconstruction due to the readout channel mapping which is 80x336 channels for the FEI4 chips used. I shall present a comparison of pixel geometries using data taken at several testbeams with mapping applied in reconstruction.

Speaker: Dr Kenneth Wraight (University of Glasgow)

Slides BTTB_20_1_15.pptx

19 Reconstruction, analysis and simulation of the FEI4 telescope SPS data with CCPD and Planar Assemblies

Results of the SPS data taken in November using the FE14 telescope with CCPD and Planar Assemblies will be presented. Reconstruction is carried out using the Judith software which will be introduced. Reconstruction of simulated data with Allpix will also be discussed showing features of the telescope and the analysis.

Speaker: Mr Francesco Armando Di Bello (University of Geneva)

Slides 0.pdf

10:15 Coffee break

Test beam: Data analysis

20 HV-MAPS Tracking Telescope: Alignment and efficiency analysis

In the context of the Mu3e experiment, High Voltage Monolithic Active Pixel Sensors (HV-MAPS) are used as main tracking detector providing highly efficient tracking with good momentum, vertex and timing resolution. The Mupix HV-MAPS prototypes were arranged in a telescope setup with four layers as an integration test and for efficiency measurements. During test beam campains at the Paul-Scherrer Institute the telescope was placed in a 250 MeV/c pion beam. A simple straight track model was used for tracking particles through the layers. One of the chips served as device under test with varying settings and its efficiency was determined by using the other three layers for tracking. This talk focuses on the alignment and efficiency analysis of test beam data from July and October 2014.

Speaker: Ms Dorothea vom Bruch (Physikalisches Institut Heidelberg)

Slides talk_DvB.pdf

21 Short update on Fermilab test beam results for the ATLAS sTGC

tba

Speaker: James Michael Botte

Slides Caladium_FTBF_Update.pdf

Infrastructure

22 Modifications to the Carleton telescope

tba

Speaker: James Michael Botte

Slides Caladium_Modifications_Jan_2015.pdf

23 Status of the AIDA telescope

The status of the AIDA telescope at the beginning of the test beam year 2015 is presented.

Speaker: Dr Igor Rubinskiy (CFEL)

Slides AIDA-wp93-overview.pdf

Workshop Photo

12:30 Lunch

Infrastructure

24 The FE-I4 telescope

In 2014 an FE-I4 based telescope has been built and commissioned in the CERN PS and SPS testbeam. It is a 6 plane system, consisting of IBL like 150um planar pixel sensors, read out by the RCE system, providing fully synchronized readout when used with FE-I4 compatible devices under test.The telescope is triggering itself and allows for region of interest triggers, which is especially useful for small DUTs. Multiple ATLAS planar pixel sensors and HVCMOS devices have been successfully characterized. The construction and commissioning of the telescope, along with experiences during the first testbeams will be presented.

Speaker: Mr Branislav Ristic (CERN / University of Geneva)

Slides 2015_01_20-FEI4_telescope_bristic.pdf

25 The LHCb Timepix3 telescope

During the summer of 2014, the LHCb Timepix3 telescope has been assembled, and successfully commissioned at the CERN PS beam. It was used extensively at SPS to characterise prototype sensors for the upgrade of the LHCb Vertex Locator, and also provided tracks to other LHCb upgrade projects. The telescope consists of 8 planes with 300 um thick n-on-p sensors bump-bonded to Timepix3 ASICs. Readout of the Timepix3 is achieved with the SPIDR readout system based on Xilinx Virtex7 FPGA's. It features a zero-suppressed data-driven readout, and can cope with a track rate of 10 million tracks per second. This presentation will discuss the construction of the telescope, describe the readout and its software environment, and show some performance results of the telescope.

Speaker: Martin Beuzekom, van (NIKHEF)

Slides TPX3_telescope_DESY_20150120.pdf

26 Status of the TLU and the miniTLU

The status of the TLU and the miniTLU development is presented.

Speakers: Mr David Cussans, Dr David Cussans (Bristol University)

Slides beam_telescope_workshop_desy_jan15_tlu_cussans_02.pdf beam_telescope_workshop_desy_jan15_tlu_cussans_02.pptx

27 Integration of the GBL track fitting algorithm within EUTelescope.

A look into the running of the General Broken Lines (GBL) track fitting algorithm and new alignment techniques used within the EUTelescope framework.

Speaker: Mr Alexander Morton (University of Glasgow)

Slides EUTel-Workshop.pdf

28 EUDAQ 2

This talk shows the changes necessary to overcome the rate limitations of the current Telescope framework. This includes the changes to the EUDAQ software framework as well as changes to the TLU arrangement (cascaded TLUs)

Speaker: Mr Richard Peschke (DESY)

Slides Eudaq2.pdf Eudaq2.pptx

15:15 Coffe break

Simulation tools and alike

29 TCAD simulations for silicon sensors and testbeams

After a brief introduction of TCAD simulations for silicon sensors, I will present the possibilities offered by combining this kind of simulations together with testbeam data. In particular I will focus on measurements and simulations concerning highly irradiated silicon sensors and I will show how to extract information about the trapping constant and the electric field profile.

Speaker: Marco Bomben (LPNHE)

Slides TCAD_sims_bomben_v2.pdf

30 Telescope and Timepix DUT simulation with Allpix/Geant4

A vertex-detector concept based on the hybrid planar pixel-detector technology is currently under development for the proposed multi-TeV linear e+e- Compact Linear Collider (CLIC). Prototype assemblies with thin planar pixel sensors (50-300 um) bump bonded to Timepix readout ASICs have been characterised at DESY with a 5.5 GeV electron beam and using the EUDET beam telescope and calibrated with sources and X-ray fluorescence measurements. The test-beam setup is simulated using a GEANT4-based simulation framework (ALLPix) which is tuned using TCAD simulation tools to model the silicon devices. In this talk we present the current status of test-beam data analysis and comparison with Geant4 simulations.

Speaker: Niloufar Alipour Tehrani (ETH Zürich, CERN)

Slides NiloufarAlipour_EUTelescope2015.pdf

31 DESY Test Beam simulation

The DESY test beam generation includes several steps, which are simulated with Geant4. The goal of the simulation is to gain more knowledge about the beam attributes, such as the particle fluxes, the beam energy distribution and the beam purity. It will be the key input for future test beam line improvements.

Speaker: Anne Schütz (DESY ATLAS)

Slides AnneSchuetz_final.pdf

32 Telescope resolution optimisation

A global chi2 minimisation method is used to extract the prediction resolution of various beam-telescope setups. Results from optimisation studies for the plane spacing at different device-under-test configurations and beam momenta are presented. The presentation is followed by a demonstration of a web-based tool for telescope geometry optimisation.

Speaker: Dominik Dannheim (CERN)

Slides telescope_geometry_opt_TelescopeWS_DESY_20Jan2015.pdf

33 Status of the FNAL Testbeam Facility

The status of the FNAL Testbeam Facility are presented.

Speaker: Aria Soha

Slides FTBF_theTalk_2015.pptx

Questions and Answers

18:15 Travel to Landungsbruecken 7-9 (Elbe)

Bus shuttle departs in front of the foyer (Building 1). Meeting time 18:15, departure 18:30

19:00 Dinner cruise

Wednesday, 21 January

Test beam: Data analysis

34 Observing and correcting the surface deformation of light pixelated detection surface.

The PLUME (Pixelated Ladder with Ultra-low Material Embedded) collaboration is developing ultra light ladder for the vertex detector of a future linear collider. This object is a double-sided detector which integrates thin pixelated sensors (50 µm), readout infrastructure and mechanical structures aiming at an overall material budget about 0.3% X0. Both the thinning and the gluing process of the sensors generate inevitable non-flatness of the detection surface. These deformations impact the spatial resolution in certain circumstances. The fist prototype ladders were prepared and tested in the SPS beam in 2011 at CERN. We will present the analysis results of the test beam data quantifying the shape deformation and a correction method to recover the genuine spatial resolution.

Speaker: Mr Benjamin BOITRELLE (DESY)

Slides Observing_and_correcting_deformation_BTTB2014_BBoitrelle.pdf

35 Test Beam Analysis with Telescope and Irradiated Strip Sensors

Highly irradiated strip sensors from epitaxial silicon were measured in five test beam campaigns at DESY. In this talk, I will present the hardware integration into the DATURA and ACONITE telescopes, the software reconstruction with EUTelescope and results of the analysis.

Speaker: Mr Thomas Eichhorn (DESY)

Slides bttb15_eichhorn.pdf

10:05 Coffee break

Tutorials

36 Introducing automated test procedures for stable software development

Speaker: Hanno Perrey (DESY, Hamburg)

Slides hperrey_testing_for_software_devels.pdf

Tutorials

37 EuTelescope Tutorial

Speakers: Mr Alexander Morton (University of Glasgow), Mr Alexander Morton (DESY ATLAS), Tobias Bisanz (Uni Göttingen - ATLAS), Mr Tobias Bisanz (Uni Göttingen (ATLAS))

Slides EUTel-GBL-Tutorial.pdf EUTelTutorial.pdf

Questions and Answers

Closing session

38 Closing the workshop

Speaker: Dr Hendrik Jansen (DESY)

Slides goodbye_v1.pdf