tag:www.physik.uni-hamburg.de,2005:/en/iexp/gruppe-garutti/news-ag-garuttiGroup News2024-03-26T09:50:13ZNAGR-fakmin-37469657-production2024-03-22T11:00:00ZThe studies on the modules for the upgrade of the CMS Inner Tracker continue!<img width="293" height="165" style="float:left" src="https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/37489443/module-march2024-733x414-a44f814c7e1dab14771faf2ac25ddfe04b17f8b3.jpg" /><p>In these two weeks of test beam, we have continued the detailed program of systematic studies on the modules. <br>We tested three fluences and collected data for resolution studies with different bias voltages and thresholds. <br>The optimization continues, stay tuned!</p><p>Photo: AG Garutti</p>NAGR-fakmin-36783778-production2024-01-18T11:00:00ZMaster defense Lukas<img width="293" height="165" style="float:left" src="https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/36783809/2024-masker-lukas-brinkmann-6babce26abe1825b43ab8be2a77d50422099c11e.jpg" /><p>Lukas Brinkmann defended his master thesis on "Non-linear Response of Silicon Photomultipliers" today.</p>
<p>Congratulations, Lukas!</p><p>Photo: AG Garutti</p>NAGR-fakmin-36745887-production2024-01-10T23:00:00ZMaster defense Stephan<img width="293" height="165" style="float:left" src="https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/36746070/master-stephan-lachnit-fad599caf07db5705f7d85d5321b6ef82125eb73.jpg" /><p>Stephan Lachnit defended his master thesis on "Time Resolution of a Fully-Integrated Digital Silicon Photo-Multiplier" today.</p>
<p>Congratulations, Stephan!</p><p>Photo: AG Garutti</p>NAGR-fakmin-36501711-production2023-12-23T23:00:00ZSeason's greetings<img width="293" height="165" style="float:left" src="https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/36501746/xmas-uni-733x414-4b599ffde2d1dbfd2520d5fc864b1d2e5ad3d8ab.jpg" /><p>We wish everyone happy holidays and a healthy and happy new year 2024!</p><p>Photo: Uni HH</p>NAGR-fakmin-36589000-production2023-12-18T17:00:00ZWe don't surrender! Excursion to the Christmas Market<img width="293" height="165" style="float:left" src="https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/36589065/xmas-blankenese-2023-f4f241893ef0bcf38ca4508d0814e8dbd8e16082.jpg" /><p>The last survivors - of work, of Corona or other winter illnesses - strongly resisted and successfully joined for an after-work trip to a Christmas market in Hamburg, Blankenese. We onjoyed some hot Gluehwein and tasty Crêpes whilst having a nice chat with our team. Hopefully the rest of the team is going to feel better soon and we are looking forward to meeting, discussing and working with all of you soon in 2024. Cheers!</p>
<p class="bildnachweis">AG Garutti</p>
<p>Photo: AG Garutti</p>NAGR-fakmin-36501532-production2023-12-14T11:00:00ZMaster defense Lukas<img width="293" height="165" style="float:left" src="https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/36501643/lukas-e-733x414-7f4b2e21ef60fa537fded82fdf9794739c1714f9.jpg" /><p>Lukas Eikelmann defended his master thesis on "Cluster reconstruction in CMS pixel sensor modules at shallow angles including radiation damage effects" today.</p>
<p>Congratulations, Lukas!</p><p>Photo: AG Garutti</p>NAGR-fakmin-37013296-production2023-12-13T15:00:00ZAxion Knowledge Bar@MADMAX<img width="293" height="165" style="float:left" src="https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/37014490/collage-axion-knowledge-bar-olivier-rossel-desy-733x414-c1ab6d1a3385633b7ff369fcb07d561936cc859a.jpg" /><p>Let's meet at the Axion knowledge-bar tonight!</p>
<p>On December, 13th, 2023, our team from the MADMAX collaboration had the great chance to welcome Olivier Rossel and to be part of his fascinating project. Olivier Rossel is observing MADMAX's search for Axions, a prominent candidate for dark matter, that would simultaneously solve the strong CP-problem if detected. As an artist, currently working on his PhD in Science and Technology Studies, Olivier is interested in the field of tension, where arts practices and experimental physics come together. For this purpose, he closely studied MADMAX inside the SHELL Hall on Campus Bahrenfeld for two weeks and intervened with an artistic action.</p>
<p>For one evening, the newly built SHELL Hall was turned into the Axion knowledge bar, where tasty Glühwein and cookies were served. However – the drinks on offer were by no means for free and had to be traded against cutting edge knowledges concerning actual axion physics. Writing poems about feeling as a MADMAX scientist, reproducing body movements from laboratory experiments, or drawing technical hacks used in experimental procedures related to a possible future detection of axions have been traded in. Olivier, for his PhD foremost interested in tacit knowledge and scientific tinkering, took data for his own research on this occasion. Shortly after the event, the material was reviewed, put into relation with scientific literature, and bound to a fascinating artistic publication.</p>
<p>Team MADMAX is very proud to have hosted the project. We're looking forward to have Olivier Rossel's knowledge bar at Science City Day 2024, on Saturday, 1 June 2024.</p>
<p>The Axion Knowledge Bar is part of Olivier Rossel's PhD Project 'Intra-Axion - The role of performative materialities in the field of tension between the arts and new physics'. The events are kindly supported by Group Garutti, the MADMAX collaboration and the Excellence Cluster Quantum Universe at University of Hamburg.</p>
<p>Please find more information:<br>Group Garutti https://www.physik.uni-hamburg.de/iexp/gruppe-garutti.html<br>MADMAX Collaboration https://www.mpp.mpg.de/en/research/astroparticle-physics-and-cosmology/madmax-searching-for-axion-dark-matter/<br>Excellence Cluster Quantum Universe https://www.qu.uni-hamburg.de/<br>Olivier Rossel's research https://www.mpp.mpg.de/en/news/news/intraaxion-forschen-an-der-schnittstelle-von-kunst-und-experimenteller-physik</p><p>Photo: AG Garutti</p>NAGR-fakmin-35939836-production2023-10-13T08:00:00ZAnother week of Testbeam!<img width="293" height="165" style="float:left" src="https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/35994656/testbeam-202310-group-733x414-5c40c158a2d4654d3c431677ab8710ef5dfe6226.jpg" /><p>This time, we tested new methods for tuning the chips and collected important data to characterize the final modules that will go into the new Inner Tracker detector for CMS in the upcoming upgrade of the experiment for the new “High-Lumi” phase of LHC. We celebrated it with new group members and could enjoy some tasty cake, thanks to someone's special occasion.</p><p>Photo: AG Garutti</p>NAGR-fakmin-35910672-production2023-10-12T13:00:00ZStrong support for MADMAX<img width="293" height="165" style="float:left" src="https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/35910800/loading-crane-for-madmax-733x414-1b57af411ff06a9a2de5cabe2a014de634b855c3.jpg" /><p>The preparations for the commissioning of the MADMAX Prototype (Cryostat) in the SHELL laboratory at the begin of 2024 were supported today by the "strongest loading crane in the north". Heavy equipment including parts of a Helium gas recovery system and several compressors for cryocoolers were lifted into the technical room next to SHELL with the help of the company Griebel & Mahncke. Even the high pressure helium compressor with a weight of 650 kg was easily lifted with the long arm of the loading crane.</p><p>Photo: AG Garutti</p>NAGR-fakmin-35649190-production2023-09-13T12:30:00ZPhD defense Chuan Liao<img width="293" height="165" style="float:left" src="https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/35649310/defense-chuan-13092023-733x414-d86cc1e65644fde77e0cc119d76c7776b2b9305d.jpg" /><p>Chuan Liao defended his thesis on the "Boron removal effect in p-type silicon sensors".</p>
<p>Congratulations, Chuan!</p><p>Photo: AG Garutti</p>NAGR-fakmin-35657098-production2023-09-07T11:00:00ZPhD defense Jack Christopher Hutchinson Rolph<img width="293" height="165" style="float:left" src="https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/35657295/phd-defense-jack-rolph-733x414-12b3d60fb5d787059119c1a091fff2920089c20c.jpg" /><p>Jack Christopher Hutchinson Rolph defended his thesis on "Shower Separation in Five Dimensions using Machine Learning Techniques".</p>
<p>Congratulations, Jack!</p><p>Photo: AG Garutti</p>NAGR-fakmin-35648095-production2023-08-31T13:00:00ZDetector lab AG Garutti fights the "Total Challenge" - on the summer party 2023 & Waving Goodbye of janitor Wolfgang Weppner<img width="293" height="165" style="float:left" src="https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/35648273/erika-summerparty-31082023-733x414-6bfb96e1977bb39c649a89dbfe18dd8a290a40df.jpg" /><p>What happend on this sunny thursday afternoon on the parking space infront of IEXP-building? Innovative experiments could be observed and strange noises - like laughter - were heard from some 20 people busy competing each other with unseen objects. Why didn't we read about it in science magazines? It was the "Total Challenge", fiercefully fought of members of Erikas detector lab group. What started as a relaxed and tasty summer party with a vegetarian BBQ, was turned into a dynamic tournament by some eager students, doctors and guests visiting from Cern. Team "Team" and Team "Challenge" fought hard, but always laughing, to win points in games as "bottle flip", "cup pyramid" and in the end "arm wrestling". The team with most accuracy, balance and luck could win.<br>Isn't this always the case in science as well?</p>
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<p>But that was not the only extraordinary event happening this day: We could say congratulations to Wolfgang Weppner for happily entering into retirement. He had been our truly much respected and valued janitor for many years and we are very thankful for all big and small tasks that he helped us out with! To celebrate it he was given a cake with lots of tasty mice in white, blue and pink, to sweeten up some moments in his free-time that he can enjoy from now on.<br>Cheers to you, Wolfgang!</p>
<p></p><p>Photo: AG Garutti</p>NAGR-fakmin-35078302-production2023-07-19T22:00:00ZLecture series "How it all began"<img width="293" height="165" style="float:left" src="https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/35078324/keyvisual-06-23-vortrag-logos-640x361-1a352fc78019e09d7dc50b3474c6be2b466797c5.jpg" /><p>The series of lectures on the subject of the Big Bang</p>
<p>Together with scientists from the Cluster of Excellence Quantum Universe of Universität Hamburg and the research center DESY, the lecture series starts a journey to the origin of our universe.</p>
<p>For more details on the events and the location, see the event website.</p><p>Photo: UHH/QU</p>NAGR-fakmin-34534836-production2023-05-12T09:00:00ZWissen vom Fass<img width="293" height="165" style="float:left" src="https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/34534858/202305-wvf-733x414-a876fda09fd486ddfe649fceec86c8cd138cc471.jpg" /><p>Yesterday evening, another "Wissen vom Fass" event took place in many pubs in Hamburg. <br><br>One of the contributions was by Erika Garutti on the question "Are we bathing in dark matter?".</p><p>Photo: AG Garutti</p>NAGR-fakmin-34376387-production2023-04-26T22:00:00ZQuadule testbeam<img width="293" height="165" style="float:left" src="https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/34385340/testbeam-quad-733x414-4ed264ebb8cca42f46f42d820877de29d0b9d042.jpg" /><p>Freshly assembled only last week - and this week we are already testing the new HPK quad module for the CMS inner tracker upgrade (aka "the Quadule") at the DESY II testbeam facility.</p>
<p>Four times the pixels - four times the fun!</p>
<p></p><p>Photo: AG Garutti</p>NAGR-fakmin-34368197-production2023-04-20T22:00:00ZA new Quad family member<img width="293" height="165" style="float:left" src="https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/34368241/hpk-family-733x414-6369e1533b3e32f1659120ea66231c7024f87d60.jpg" /><p>Our family of quad modules (2x2 CROC prototypes for the Phase-II upgrade of the CMS pixel detector) has a new member: <br><br>This is the first HPK one - produced by Hamamatsu, with wafer layout done here in Hamburg - that we have wirebonded and fully assembled. Right now it undergoes first tests in the laboratory. Next week it will be characterised at the DESY testbeam.</p>
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HPK Quad module test setup in the lab (AG Garutti)
<p></p><p>Photo: AG Garutti</p>NAGR-fakmin-34199710-production2023-03-29T16:00:00ZFirst fully assembled Quad module<img width="293" height="165" style="float:left" src="https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/34199731/quad-closeup-733x414-cb16c87285dcea374f4f03e5bc4df0c87f61420d.jpg" /><p>Our first 2x2 CROC prototype module for the Phase-II upgrade of the CMS pixel detector is fully assembled now, including all the wire bonds. <br><br>After inserting it in the adapter board, we can now communicate with all the four chips that make up the module.</p><p>Photo: AG Garutti</p>NAGR-fakmin-34160591-production2023-03-26T22:00:00ZDPG spring meeting<img width="293" height="165" style="float:left" src="https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/34160614/dpg2023collage-5672fb40003ccafb00e299588bac60365e1b3a1d.jpg" /><p>This year's spring meeting of the DPG (German Physical Society) in Dresden just came to an end. <br>Many of our group members profited from the opportunity to present our work and to attend great number of interesting sessions.</p><p>Photo: AG Garutti</p>NAGR-fakmin-33658345-production2023-02-09T23:00:00Z3rd High-D Consortium meeting<img width="293" height="165" style="float:left" src="https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/33658366/highd3-733x414-588df9eb857c83ba429316a5d9fa409e7adf8f18.jpg" /><p>The High-D consortium held its third consortium meeting yesterday and today. We enjoyed a lot of fruitful exchange and lively discussions about our work on R&D for highly segmented multidimensional detectors for future experiments.</p><p>Photo: High-D / AG Garutti</p>