Scintillation characteristics of pure and Tl-doped CsI crystals Schotanus, P.; Kamermans, R.
IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA),
1990-April, 1990-4-00, 19900401, 1990-04-01, Volume:
37, Issue:
2
Journal Article, Conference Proceeding
Peer reviewed
The scintillation characteristics of pure and Tl-doped CsI were investigated. The scintillation light was detected with photomultipliers and silicon photodiodes. The influence of the Tl concentration ...on the light yield and on the decay times was studied upon excitation with gamma -rays and alpha -particles. The origin of the different emission components is discussed.< >
Results on transverse mass spectra of neutral pious measured at central rapidity are presented for impact parameter selected 158-A GeV Pb + Pb-1 and Pb + Nb collisions. The distributions cover the ...range 0.5 GeV/c(2) less than or equal to MT - Mo less than or equal to 4 GeV/c(2). The change of the spectral shape and the multiplicity with centrality is studied in detail. In going from p+p to semi-peripheral Pb+Pb collisions there is a nuclear enhancement increasing with transverse mass similar to the well known Cronin effect, while for very central collisions this enhancement appears to be weaker than expected.
Particle identification in intermediate heavy-ion collisions, using a modern 4π detector which contains several active layers, relies on a parametrisation or numerical integration of the energy loss ...in thick layers of detector material for different ions. Here an analytical solution applicable over an energy range of a few MeV up to a 100
A MeV and for ions up to at least
Z=8 is presented. Also, the consequences for time-of-flight measurements (TOF) in detectors behind several thick layers of detector material are discussed. The solution is applied to the data of the Huygens detector, which uses a TPC (d
E/d
x) and plastic scintillators for particle identification (
E and TOF or d
E/d
x and TOF).
Properties of CF4 and isobutane for use in microstrip gas counters Prendergast, E.P.; Agterhuis, E.H.; Kuijer, P.G. ...
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment,
01/1997, Volume:
385, Issue:
2
Journal Article
Neutral pion transverse momentum spectra were measured in p+C and p+Pb collisions at sqrtS{NN}=17.4 GeV at midrapidity (2.3 less than or approximately equal eta{lab} less than or approximately equal ...3.0) over the range 0.7 less than or approximately equal p{T} less than or approximately equal 3.5 GeV/c. The spectra are compared to pi{0} spectra measured in Pb+Pb collisions at sqrtS{NN}=17.3 GeV in the same experiment. For a wide range of Pb+Pb centralities (N{part} less than or approximately equal 300), the yield of pi{0}'s with p{T} greater than or approximately equal 2 GeV/c is larger than or consistent with the p+C or p+Pb yields scaled with the number of nucleon-nucleon collisions (N{coll}), while for central Pb+Pb collisions with N{part}greater than or approximately equal 350, the pi{0} yield is suppressed.
An experiment with the Huygens detectors has been performed at GANIL (France). These Huygens detectors comprise two detectors: a central detector, which consists of a time projection chamber (TPC) ...surrounded by a plastic scintillator barrel, and a CsI(Tl) wall in the backward region. In addition, in the forward hemisphere a plastic hodoscope (‘MUR’) is used in conjunction with the forward plastics of the Huygens plastic scintillator barrel. In this paper first results will be presented.
Results from NA57 Dainese, A.
Nuclear physics. A,
08/2006, Volume:
774
Journal Article
Peer reviewed
Open access
The NA57 experiment has measured the production of strange and multi-strange hadrons in heavy-ion collisions at the CERN SPS. After briefly introducing the NA57 apparatus and analysis procedures, we ...present recent results on strangeness enhancement in Pb+Pb relative to p+Be collisions, on the study of the
m
T
distributions of strange particles, and on central-to-peripheral nuclear modification factors in Pb+Pb collisions at top SPS energy.
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