7,022 Works

The ZEUS third level trigger hardware architecture and the control system

F S Chlebana, D Bailey, R S Orr, C R Sampson, R Teuscher, S Bhadra, M B Crombie, D Bandyopadhyay & F Bénard

Delayed-proton emission from neutron-deficient isotopes of xenon and mercury

W Wilsky, B Jonson, P G Hansen, B Bengtsson, M Alpsten, E Kugler, A Appelqvist, G Andersson & P Hornshøj

Vacuum Arc Ion Sources

I Brown
The vacuum arc ion source has evolved into a more or less standard laboratory tool for the production of high-current beams of metal ions, and is now used in a number of different embodiments at many laboratories around the world. Applications include primarily ion implantation for material surface modification research, and good performance has been obtained for the injection of high-current beams of heavy-metal ions, in particular uranium, into particle accelerators. As the use of...

Loss maps of RHIC

G Robert-Démolaize & A Drees
State-of-the-art tracking tools were recently developed at CERN to study the cleaning efficiency of the Large Hadron Collider (LHC) collimation system . These tools are fully transportable, meaning that any accelerator lattice that includes a collimation systemcan be simulated. Each of the two Relativistic Heavy Ion Collider (RHIC) beam lines features a multi-stage collimation system, therefore dedicated datasets from RHIC operations with proton beams can be used to benchmark the tracking codes and assess the...

Relativistic heavy-ion collisions

Rajeev S Bhalerao
The field of relativistic heavy-ion collisions is introduced to the high-energy physics students with no prior knowledge in this area. The emphasis is on the two most important observables, namely the azimuthal collective flow and jet quenching, and on the role fluid dynamics plays in the interpretation of the data. Other important observables described briefly are constituent quark number scaling, ratios of particle abundances, strangeness enhancement, and sequential melting of heavy quarkonia. Comparison is made...

Vacuum Technology for Ion Sources

P Chiggiato
The basic notions of vacuum technology for ion sources are presented, with emphasis on pressure profile calculation and choice of pumping technique. A Monte Carlo code (Molflow+) for the evaluation of conductances and the vacuum-electrical analogy for the calculation of time-dependent pressure variations are introduced. The specific case of the Linac4 H- source is reviewed.

Installation and Test of the ATLAS Muon Endcap Trigger Chamber Electronics

M Ishino, S Kagawa, T Kuwabara, M Ikeno, Y Yasu, T Sugimoto, O Sasaki, H Sakamoto, Y Sugaya, M Tomoto, H Kurashige, T Ogata, C Fukunaga, Y Hasegawa, T Kubota & Hiroshi Nomoto
For the detector commissioning planned in 2007, a sector assembly of the ATLAS muon endcap trigger chambers is being progressed in CERN. Final technical test of the electronics mounted on a sector must be made at this stage. For systematic test of the electronics (sector test), we have developed a DAQ system on top of the ATLAS online software framework. The system is not dedicated only for this test, but can be used also for...

Parton luminosities, W and Z cross sections and gauge boson pair production

P Nason, M Pepé, H Kuijf, D Wood, Hartmute Plothow-Besch, L G Trentadue, T Matsuura, F Pastore, Dieter Zeppenfeld, G Martinelli & T Mele

First observation of /sup 162/Hf decay: completion of an alpha -decay chain

E Hagberg, V T Koslowsky, U J Schrewe, H Schmeing, J C Hardy, E T H Clifford & K S Sharma
The new isotope /sup 162/Hf (T/sub 1/2/=(37.6+or-0.8)s) is produced in a /sup 142/Nd (/sup 24/Mg,4n) reaction. The activities produced in this reaction are transported to a measuring station by use of a He- jet system. Decay properties are observed with alpha -, gamma -, and gamma - gamma -spectroscopy. The Z-assignment of the new isotope is based on a cross bombardment on /sup 141/Pr target and on the results of a gamma -X-ray coincidence measurement....

Registration Year

  • 2014

Data Centers

  • CERN Publishing