PS tunnel : typical sectionDiagrams and ChartsCERN-DI-5547001Drawing showing the main elements of the future PS tunnel.1955http://cds.cern.ch/record/39616http://cds.cern.ch/record/39616oai:cds.cern.ch:39616 PS building layoutDiagrams and ChartsCERN-DI-5648002Drawing of the PS ring and all buildings surrounding it.1956http://cds.cern.ch/record/39620http://cds.cern.ch/record/39620oai:cds.cern.ch:39620 PS building site Sites and Aerial Views CERN-SI-5670006 Concrete retaining wall for the "Mount Citron" shield (built to enclose the South Hall western end). 1956 http://cds.cern.ch/record/39628 http://cds.cern.ch/record/39628 PS building site : trial section of the ring buildingCivil Engineering and InfrastructureCERN-CE-5672001The earth mound covers a short, straight trial section of the PS ring structure, used to study foundations stability.1956http://cds.cern.ch/record/39630http://cds.cern.ch/record/39630oai:cds.cern.ch:39630 CERN PhotoLabPS ring : excavation workSites and Aerial ViewsCERN-PHOTO-5509213CERN-SI-5500213Excavation and lean-concrete lining of a first section of the PS ring tunnel.1955http://cds.cern.ch/record/39656http://cds.cern.ch/record/39656oai:cds.cern.ch:39656Image scanned from original photo negative on 08 Dec 2014The month of this photo has been recorded as June, but not been verified. Most likely it is from September. CERN PhotoLabPS ring : foundations for "pendulum" supportsSites and Aerial ViewsCERN-PHOTO-5510229CERN-SI-5500229The circular holes will later be drilled through to house the "pendulum" supports for the PS concrete ring foundation.1955-10-17http://cds.cern.ch/record/39659http://cds.cern.ch/record/39659oai:cds.cern.ch:39659Image scanned from original photo negative on 08 Dec 2014 CERN PhotoLabPS ring buildingSites and Aerial ViewsCERN-PHOTO-5512295CERN-SI-5500295View of the interior of the tunnel, before casting the ceiling.1955-12-20http://cds.cern.ch/record/39667http://cds.cern.ch/record/39667oai:cds.cern.ch:39667Image scanned from original photo negative on 08 Dec 2014 CERN PhotoLabPS ring : lower part of the structureSites and Aerial ViewsCERN-PHOTO-5603355CERN-SI-5600355The cylindrical hole will house the drilled column support for the ring structure.1956-03-14http://cds.cern.ch/record/39671http://cds.cern.ch/record/39671oai:cds.cern.ch:39671Image scanned from original photo negative on 08 Dec 2014 CERN PhotoLabPS buildings : reinforced concrete structure for shielding "bridge" pillarSites and Aerial ViewsCERN-PHOTO-5605392CERN-SI-5600392The PS ring traverses the region between the experimental halls South and North (buildings Nos 150 and 151) under massive bridge-shaped concrete beams. This pillar stands at the S-W end of the structure.1956-05-21http://cds.cern.ch/record/39675http://cds.cern.ch/record/39675oai:cds.cern.ch:39675Image scanned from original photo negative on 08 Dec 2014 CERN PhotoLabPS buildings : steel reinforcement for the shielding "bridge"Sites and Aerial ViewsCERN-PHOTO-5608432CERN-SI-5600432The left-side abutment of this structure is the pillar seen in photo 392.1956-08-20http://cds.cern.ch/record/39680http://cds.cern.ch/record/39680oai:cds.cern.ch:39680Image scanned from original photo negative on 08 Dec 2014 PS ring buildingAcceleratorsCERN-AC-5600444The concrete ring that will support the machine will be housed in the trench occupying the lower half of the tunnel.1956http://cds.cern.ch/record/39681http://cds.cern.ch/record/39681oai:cds.cern.ch:39681 CERN PhotoLabPS buildings : detail of the shielding "bridge"Sites and Aerial ViewsCERN-PHOTO-5609463CERN-SI-5600463Detail of the bridge, showing the rectangular openings allowing access to the machine.1956-09-19http://cds.cern.ch/record/39683http://cds.cern.ch/record/39683oai:cds.cern.ch:39683Image scanned from original photo negative on 08 Dec 2014 PS : South Hall under constructionSites and Aerial ViewsCERN-SI-5600467View looking N-W.1956-09-10http://cds.cern.ch/record/39684http://cds.cern.ch/record/39684oai:cds.cern.ch:39684 CERN PhotoLabPS buildings : detail of shielding "bridge"Sites and Aerial ViewsCERN-PHOTO-5610500CERN-SI-5600500Tensioning of the pre-stressing cables.1956-10-16http://cds.cern.ch/record/39685http://cds.cern.ch/record/39685oai:cds.cern.ch:39685Image scanned from original photo negative on 08 Dec 2014 CERN PhotoLabPS ring foundation on pendulum supportsSites and Aerial ViewsCERN-PHOTO-5611516CERN-SI-5600516View showing the heavy steel bar reinforcing, prior to concrete casting. See also photo <a href="https://cds.cern.ch/record/39688">518</a>.1956-11-21http://cds.cern.ch/record/39687http://cds.cern.ch/record/39687oai:cds.cern.ch:39687Image scanned from original photo negative on 08 Dec 2014 CERN PhotoLabPS ring : pendulum supportsAcceleratorsCERN-PHOTO-5611518CERN-AC-5600518The cylindrical shells encase the pendulum bars. See also photo <a href="https://cds.cern.ch/record/39687">516</a>.1956-11-21http://cds.cern.ch/record/39688http://cds.cern.ch/record/39688oai:cds.cern.ch:39688Image scanned from original photo negative on 08 Dec 2014 CERN PhotoLabPS ring building under constructionSites and Aerial ViewsCERN-PHOTO-5611532CERN-SI-5600532Area near the junction Linac/Main Ring. See also photo <a href="https://cds.cern.ch/record/39702">581</a>.1956-11-24http://cds.cern.ch/record/39690http://cds.cern.ch/record/39690oai:cds.cern.ch:39690Image scanned from original photo negative on 08 Dec 2014 CERN PhotoLabPS South Hall under constructionSites and Aerial ViewsCERN-PHOTO-5612537CERN-SI-5600537Present building 150. Inside view : in the foreground one of the overhead cranes still lying on the floor.1956-12-04http://cds.cern.ch/record/39692http://cds.cern.ch/record/39692oai:cds.cern.ch:39692Image scanned from original photo negative on 08 Dec 2014 1956-09-19 http://cds.cern.ch/record/39693 http://cds.cern.ch/record/39693 CERN PhotoLabPS building : view of the so-called South HallSites and Aerial ViewsCERN-PHOTO-5608429CERN-SI-5600429View looking East : the South Hall is present building 150.1956-08-20http://cds.cern.ch/record/39694http://cds.cern.ch/record/39694oai:cds.cern.ch:39694Image scanned from original photo negative on 08 Dec 2014 CERN PhotoLabPS South Hall : internal view during constructionCivil Engineering and InfrastructureCERN-PHOTO-5701567CERN-CE-5700567South Hall (present Hall 150) with all sorts of technical installations under way.1957-01-11http://cds.cern.ch/record/39699http://cds.cern.ch/record/39699oai:cds.cern.ch:39699Image scanned from original photo negative on 08 Dec 2014 CERN PhotoLabPS ring building : junction Linac to Main RingSites and Aerial ViewsCERN-PHOTO-5702581CERN-SI-5700581View looking N-W. See also photo <a href="https://cds.cern.ch/record/39690">532</a>.1957-02-21http://cds.cern.ch/record/39702http://cds.cern.ch/record/39702oai:cds.cern.ch:39702Image scanned from original photo negative on 08 Dec 2014 Inside the PS ring tunnelAcceleratorsCERN-PHOTO-5801841CERN-AC-5800841The ring is ready to receive its first magnet units. Note survey pillar and radius - measuring invar wire.1958-01-21http://cds.cern.ch/record/39834http://cds.cern.ch/record/39834oai:cds.cern.ch:39834 CERN PhotoLabMounting of the excitation windings on the PS magnet unitsAcceleratorsCERN-PHOTO-58111036CERN-AC-5801036The windings were manufactured by ACEC (Belgium) : their personnel assisted CERN for the assembling.1958-11-20http://cds.cern.ch/record/39860http://cds.cern.ch/record/39860oai:cds.cern.ch:39860Image scanned from original photo negative on 08 Dec 2014 CERN PhotoLabPS ringAcceleratorsCERN-PHOTO-59071418CERN-AC-5901418This sector of the PS appears nearly ready for beam tests.1959-07-24http://cds.cern.ch/record/39902http://cds.cern.ch/record/39902oai:cds.cern.ch:39902Image scanned from original photo negative on 08 Dec 2014