CERN Bulletin 26/200527/2005 environment nature bulletin 2005 2005 There are several "Floral Nature Reserve - Late Mowing" zones at CERN Meyrin. The blossoms of a rare and a not so rare type of wild orchid are currently in flower. The rare one is the bee orchid (Ophrys Apifera) which is a protected perennial. They are very unusual and in some years can appear in great numbers and then sometimes only reappear after a decade. They live in a symbiotic relationship with a soil-dwelling fungus. Its name stems from the fact that its brown, furry lip resembles and smells like a female bee, a mimicry used to attract drones to aid in pollination. The much more distributed species is the pyramidal orchid (Anacamptis Pyramidalis), which due to its size and its bright pink colour is already visible when you pass by in your car. Balle, Christoph Miscellaneous 2021 2021 CERN Courier 112-114 13 4 1973 1973 The heavy-liquid bubble chamber Gargamelle has undergone a series of repairs after fractures had appeared in its expansion system. The top half of the photographs show the magnet with its 44 expansion and recompression tubes (large white circles) and its 44 motors controlling the safety valves (small black and white circles). The chamber itself is inside the magnet. The tanks of the expansion system had been reinstalled on the trolley in the foreground. A large number of struts had been fitted to the trolley to give it added rigidity. 1999 1999 Detail of one of the magnets on the Common Muon and Proton Apparatus for Structure and Spectroscopy (COMPASS) experiment. COMPASS studies the structure of composite particles which interact via the strong force, called hadrons. These have a complicated internal structure due to the nature of their force carriers, gluons, which can form self interacting bunches called glueballs. Ochsendorf, Marcel Globe of Science and Innovation 2022 2022 Saba, A ALICE TOF Time of flight INFN Bologna 2006 2006 Glass washing in the ultrasonic tank, before the assembly of the Multigap Resistive Plate Chamber (MRPC) strips. Brice, Maximilien ALICE LS2 2020 2020 ALICE experiment in time-lapse photography mode. Ordan, Julien Marius 2021 2021 Science Gateway, CERN's future exhibition centre, is under construction. A bridge will be connecting the first and the second tubular structure, part of the Science Gateway architectural complex. The first tube structure was installed in August next to the Esplanade des Particules. The bridge will be erected 6 metres above the Route de Meyrin and its installation takes place between 25 October and 2 November. 1992 1992 Totally mixed album. Brice, Maximilien Ordan, Julien Marius Experiments and Collaborations CLOUD PS cosmic rays 2019 2019 CLOUD is starting a cosmic ray run. From 16 to 22 September they are installing instruments and equipment and, as of 23 September, they will be taking data. 1975 1975 Ordan, Julien Marius NA61 modules experiment projectile CBM 887 detector 2020 2020 The Projectile Spectator Detector (PSD) is the forward hadron compensating lead/scintillator calorimeter. It will be used in fixed target experiments to measure the event centrality and reaction plane orientation in heavy-ion collisions, for instance, in NA61/SHINE at CERN and in the Compressed Baryonic Matter (CBM) experiment at the Facility for Antiproton and Ion Research (FAIR) in Germany which aim is to explore the QCD phase diagram in the region of high baryon densities. PSD at the NA61/SHINE beyond 2020 would operate in the beam energy range 20-150 AGeV and beam rates up to 50 kHz. Traczyk, Piotr birds 2021 2021 A group of storks taking a pause at CERN before continuing their southward journey. Usually, storks migrate twice a year. The first trip, the prenuptial migration, takes the birds from their wintering grounds to their nesting grounds. The second trip, the postnuptial migration, goes in the opposite direction and takes the storks to their winter quarters. It is most often seen around the end of August, beginning of September. Anniversary ISR 1981 1981 Celebration of 10 years of proton-proton collisions at the Intersecting Storage Rings.Cutting the cake K. Johnsen (right ) and C.Zilverschoon.At center F.Ferger. See also 8103510. Ordan, Julien Marius Birthday CMS ATLAS Celebration Cake 2017 2017 Atlas & CMS Birthday Cake 25th anniversary's celebration SPS 1972 1972 Electrostatic septum - ultrahigh vacuum tank ("Champagne model") used for testing short length models of septa. brice, Maximilien HRMT-45 radiation robot High-Luminosity LHC 2018 2018 Opening of the HRMT-45 module by means of a robot in bldg 867-R-P58. After having undergone several high intensity beam impacts at the HiRadMat facility in August, the TDIS HRMT-45 module starts to be disassembled by the EN/STI-TCD and EN/SMM-MRO teams in the bunker 867-R-P58 for the post-irradiation analysis. The ultimate goal is to verify that all the equipment components remain fully functional after the high thermomechanical loads they were subjected to during the experiment. Such loads were equivalent to those likely to occur inside the TDIS during future operation HiLumi beams. Given the significant radioactivity of the module, some dismantling activities are to be performed by means of robots in order to minimize the dose taken by personnel. The robot appearing in the pictures is the in-house developed CERNbot, which was able to unfasten the tank upstream and downstream transitions while being operated remotely from another room. This was possible partly thanks to some robot-friendly solutions implemented in the TDIS HRMT-45 design agreed with MRO. The next step following to the tank opening is the metrology of the jaws, which flatness level measurement is expected to return similar values with respect to the pre-test condition. Brice, Maximilien Experiments and Collaborations ATLAS Cavern 2019 2019 This is a prototype for a new pixel detector for the ATLAS Experiment. The future pixel detector will be part of a new, all-silicon inner tracker (ITk) currently under development for the High-Luminosity phase of the LHC (HL-LHC). The ITk will replace the current inner detector, using state-of-the art silicon technologies to cope with the increased rate of collisions expected at the HL-LHC. As shown in the image, the pixel outer barrel region will feature sensors tilted with respect to the beam axis, helping to improve the tracking performance while reducing the total silicon area. Brice, Maximilien Experiments and Collaborations CMS HGCAL 2018 2018 Prototype detector modules for the CMS "HGCAL" (High Granularity Calorimeter) phase-II upgrade project. The modules are based on 6-inch hexagonal silicon sensors, glued and wire-bonded to PCBs contining Skiroc2-CMS front-end ASICs. Single modules and arrays of seven modules (both shown) were used in beam tests at CERN in 2018, to test calorimetric performance for electrons and charged pions. The photos include Patrick Sieberer (Technical Student @ CERN), Bora Akgun (CERN Fellow) and Hao-Ren Jheng (National Central University Taiwan, PhD student) Maximilien Brice CNGS Diamonds 2012 2012 ATLAS Collaboration ATLAS Detector & Site Detectors Inner Detector Knowledge Transfer & Technology Technology pixel 2016 2016 A 13cm diameter wafer of polycrystalline CVD diamonds. Diamond sensors, used in the ATLAS pixel detector, have been successfully applied to hadron therapy. ATLAS Collaboration ATLAS Detector & Site Detectors IBL Inner Detector Knowledge Transfer & Technology Technology pixel 2016 2016 3D silicon sensors were developed for the ATLAS Insertable B-Layer, in the pixel region of the Inner Detector. They have also a possible application in medical imaging. Cavazza, Marina 2023 2023 Ceremony of the 'first stone' of the renovated CERN Library. A time capsule will be inserted inside a wall. In the presence of Joachim Mnich, Director for Research and Computing, and Mar Capeans, Head of Site and Civil Engineering Department. Brice, Maximilien beam dump 2017 2017 SPS DUMP TIDVG 4 - pictures taken during mounting process and view of the dump installed in the SPS tunnel (green part) Laurent Guiraud ATLAS Detector Construction collaboration general Technology Detectors Inner Detector 1997 1997 These daisy-petal structures are conducting connectors embedded in kapton film. This was an innovative solution to the demands of the ATLAS detector. Straws are pushed through the petals and held in contact using plugs. The flexible kapton film allows as many petals to be built in any configuration, while acting as a printed circuit carrying the high voltage between circles. Ordan, Julien Marius Mestvirishvili, Anna Communication Beehives Bees biodiversity 2018 2018 Some pictures of the beehives at CERN 1963 1963 Komanytska, Tanya 2022 2022 Facts about CERN, the contributions of its Member States, its machines and experiments, the number of its employees and users, management structure, etc. Previously called "CERN General Information Sheet''