Coordination of the na62 photon veto working group. Each chamber is composed of two modules and each modules contains two views, x,y or u,v. Tipp 2011 2nd international conference on technology and. Lab measurements and monte carlo simulations have been carried out for the evaluation of the strawtype detectors used in the na62. Downstream of the decay region, the straw tracker measures the. The na62 straw detector readout system request pdf. Richard skogeby detector engineer quantum detectors ltd. The straw detector in the na62 experiment ep department. Jun 21, 2012 the na62 straw tracker is using pioneering cern technology to measure charged particles from very rare kaon decays.
Kaon identification and search for lepton number violation. The detecting elements are drift tubes straws, each four millimetres in diameter and up to 144 centimetres long. Coal ash, a toxic waste generated by coalfired power plants, is one of the largest industrial waste streams in the united states. The na62 experiment is a particle physics experiment in the north area of the sps accelerator. In view of the approaching run, 20 was a critical year for the frascati na62 group. Resolution improvements and physical modelling of a straw tracker. A selfmotivated utility infielder in the form of a technologist, software engineer and organiser to projects across the company. Recent results from na62 experiment viacheslav duk, infn perugia.
A straw tracker will be placed directly into the experiments vacuum tank, allowing physicists to measure precisely the direction and momentum of. Straw tracker phasei straw design based on na62 straws with single seam weld 20 micron aluminised mylar 9. The purpose of the straw tracker is to measure with good accuracy the direction and the momentum of secondary charged particles originating from the decay. One of the limiting factors to achieve this goal is the multiple. These alarms mean the evacuation of personnel in surface buildings. Straw tracker 4 camere straw tubes, fiecare camera avand 4 vederi. The straw tracker is the first of its scale to be placed directly into the vacuum tank of an experiment, allowing na62 to measure the direction and momentum of charged particles with high precision. The na62 liquid krypton electromagnetic calorimeter level. The most important parameters for the straw tracker of na62 are summarized in. Then reco hit pairs from the same quadrant and close in time are combined into chod reco candidates all combinations of a hit in the vplane and a hit in the hplane are considered. The na62 calorimeter level 0 trigger operation and. These boards, developed at infn pisa, are the heart of the trigger and data acquisition system of na62 for most detectors. The fpga houses 16 subnanosecond resolution tdcs with derandomizers and an output link serializer.
The na62 calorimeter level 0 trigger operation and performances a. In 2015 i started a complete study of the na62 l0 and l1 trigger. A two coordinate and high precision muon detector a. In a seminar taking place today at cern, the na62 collaboration reports a candidate event of this ultrarare kaon decay found using a new inflight decay approach. For the first time, a large straw tracker will be placed directly into an. The reconstruction software of the straw spectrometer is developed within the na62reconstructionframework and makes use of the detailed simulation of the straw spectrometer embodied in the na62mctool. The kaons then drift through a 65 m section of the experiment where about 10% of them will decay. During the na62 technical run in 2012 i was responsible for the installation and operation of the cedarktag detector and i developed the ktag online data quality monitor and related software. Schematic diagram of the calorimetric trigger processor. The fieldproven nx horizon is an advanced singleaxis solar tracker that has been deployed across more than 22 gigawatts of projects worldwide. Solar tracking system pv tracker nextracker nextracker. This program tracks the parent particles and their decay muons inside the. The trigger and data acquisition system for the na62.
An example of the signal reflection study by the spice program is shown on figure. The na62 straw detector, made of 7200 cylindrical straws, is a combined spectrometer and veto detector, which is part of the na62 experiment at the cern sps accelerator. Development and maintenance of common scientific software for the cern experimental programme 5. Journal of instrumentation open access related content. The transition radiation tracker trt, the outermost component of the inner detector, is a combination of a straw tracker and a transition radiation detector. In early september, the last of the four straw tracker chambers had been lowered into position in the experiment. Na62 experiment straw tracker frontend board serves as a gastight detector cover and integrates two carioca chips, a low cost fpga cyclon iii, altera and a set of 400mbits links to the backend. The beam and detector of the na62 experiment at cern. The na62 detector 2, see figure 1, currently being installed at the sps north area high intensity facility is composed of. New straw tracker for the na62 experiment ep department. The purpose of the straw tracker is to measure with good.
Maintenance and operation of hasc detector not included in na62 technical design document na621007. The na62 liquid krypton electromagnetic calorimeter level 0. May 20, 2016 there is a continuous struggle between particle physicists, who want to keep the amount of material in the tracking detectors to a minimum, and engineers, who need to ensure safety and prevent the explosion of pressurised devices operated inside the vacuum tank, such as the na62 straw tracker made of more than 7000 thin tubes. The na62 straw tracker is using pioneering cern technology to measure charged particles from very rare kaon decays.
The technical run procedures and ndings presented in chapter 6 are the result of my own work, except where explicitly stated. The decay products are reconstructed with a straw tube based magnetic. This article is intended to help explain what those differences are and how they affect the way. The second level l12 is software and its aim is to decrease the rate of the events to khz level. Kaon identification and search for lepton number violation in k decayinflight experiments at cern karim massri thesis submitted for the degree of doctor of philosophy particle physics group, school of physics and astronomy, university of birmingham. A broad program of studies of kaon physics is run in parallel including studies of other rare decays, searches for. Expression of interest for the evolution of mu2e mu2eii. Collaboration between infn sezione di pisa, university of. At this point the attention shifts to measuring the momentum of the daughter pions, which is done using a device dubbed the straw tracker. Each chamber includes 1792 straws 7168 straws in the complete straw tracker. Cern european organization for nuclear research physics department na62. Na62 experiment straw tracker frontend board serves as a gastight detector cover and integrates two carioca chips, a low cost fpga cyclon iii. According to recent forecasts, the cumulative solar power capacity in the u.
The purpose of the straw tracker is to measure the direction and momentum of secondary charged particles originating from the decay region with good accuracy. The firmware on the tel62 and its control software will be straw detector specific. The na62 collaboration is small by cern standards but it still comprises about 150 physicists at 20 institutes worldwide. This may not be the editor who is handling the submission. Mar 27, 2018 in a seminar taking place today at cern, the na62 collaboration reports a candidate event of this ultrarare kaon decay found using a new inflight decay approach. Development of software and analysis tools for the above detector systems.
Software frontend the communication between the backend and the. Richard skogeby detector engineer quantum detectors. Utilityscale projects have been the main drivers of these exceptional growth rates and nextracker is right. Study abroad, from the boston university physics department. The good resolution on the missing mass in the decay is achieved using a highresolution beam tracker to measure the kaon momentum and with a spectrometer equipped with straw tubes operating in vacuum. We work hard to keep our advertising relevant and unobtrusive to create a great experience. So up until now, ive been explaining the whole of the na62 experiment, but i havent mentioned what my actual contribution is. The starting point for the trigger analysis was to elaborate the data of the 2015 run using the na62 software that unpacks the data file and.
I am currently working on greenfield software projects, one of which is automating and furthering the development of the quality assurance for quantum detectors medipix3 based products. An ultralight straw tracker operated in vacuum was chosen for this purpose. This feat brings almost 8 years of cern construction and design to a close, as the tracker has gone from the drawing board to construction and installation. The trigger system of na62 experiment will be at two levels. Na62 status and plans 0 ppap community meeting ral 17 july 2018 evgueni goudzovski university of birmingham on behalf of the na62uk collaboration outline. Nov 27, 2014 in early september, the last of the four straw tracker chambers had been lowered into position in the experiment. Presentation of work progress on resolution improvements of the straw tracker detector system in na62 experiment at cern. On wednesday, 10 september, the last na62 straw tracker chamber was lowered into position in the experiment. Glenzinski fermilab 18 mu2eii studies utilized full sophistication of mu2e simulations and reconstruction software. Subordinate editors pending assignments group by editors i assigned page.
Software coordinator from 20 leading role in computing collaboration with gridpp. The na62 straw tracker contains four straw chambers with a total of 7200 straws. The system, installed in three 9u racks in the room above the lkr calorimeter, is composed of 37. Historically, the united states have been one of the big four solar markets driving global industry demand year after year. To meet the requirements in terms of missing mass the relative momentum resolution and the absolute direction resolution must be about 0. You can help us keep flightaware free by allowing ads from flightaware. Free space for the beam passage has been built in without straws around the beam axis in each straw view. Georgios konstantinou chief technology officer, head of. Ktag in time, no signals in lav, momentum in straw tracker of na62 is a straw tracker operating in vacuum 2. Gap gpu application project for realtime in hep and medical imaging is a 3 years project funded by the italian ministry of research, started in 20. Development and maintenance of common scientific software for the cern. The design of the na62 straw tracker is driven by the requirement of low multiple scattering and high efficiency over the full acceptance. The post decay tracker of na62 is a straw tracker operating in vacuum 2. The principal involvement of the lnf na62 group is in the design and construction of the lav system.
Ashtracker provides public access to industryreported data from state and company records about groundwater contamination at coal ash dumps. A detector for the measurement of the ultrarare decay k. This precision is needed to match the mother kaon to the daughter pion that it decays to. The nature of the experiment puts stringent requirements on the trigger and data acquisition system, which is being developed exploiting in part existing solutions. Na62 home na62 old website contact us ep home cern home. Its quick and easy to whitelist ads on flightaware or please consider our premium accounts.
It has more than 7000 narrow drift tubes that are arranged into modules containing rows at right angles to each other. Chamber 4 just before installation is shown in fig. One of the limiting factors to achieve this goal is the multiple scattering in the magnetic spectrometer for kaon decay products. Twente, enschede, 1996, the honeycomb strip chamber. The dependence of the straw impedance from the frequency. I have been working with the prototype of the na62 straw tracker the modules and of an independent tracker called the micromegas detector. Tipp 2011 2nd international conference on technology and instrumentation in particle physics abstracts book. Tracker software products knowledge base search results. One of the important requirements for the na62 tracking detector is its high efficiency in track registration. Best singleaxis solar tracker in united states nextracker. Best thesis in radiation physics 20172018 swedish society of. Nextracker offers the most intelligent and reliable systems for your solar tracking system and storage needs, paving the way for the connected power plant of the future.
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