Joachim MNICH
(DESY)
22/02/2007, 14:00
Invited Talk
The International Linear Collider (ILC) is the next large project in high
energy physics and currently being designed in a global effort. The main
scientific goal is to complement the anticipated discoveries at the LHC by
precision measurements at the TeV scale. This has challenging implications
on the ILC detector design and performance requiring unprecedented
precision in...
Marc Buehler
(University of Virginia)
22/02/2007, 14:55
Contributed Talk
The DØ experiment at the Fermilab pp Tevatron collider (Batavia, IL, USA)
has undergone significant upgrades in anticipation of high luminosity
running conditions. As part of the upgrade, the capabilities of the Central
Track Trigger (CTT) to make trigger decisions based on hit patterns in the
Central Fiber Tracker (CFT) have been much improved. We report on the
implementation,...
Xavier Llopart Cudie
(CERN)
22/02/2007, 15:20
Contributed Talk
A novel approach for the readout of a TPC at the future linear collider is to
use a CMOS pixel detector combined with some kind of gas gain grid. A first
test using the photon counting chip, Medipix2, with GEM or Micromegas
demonstrated the feasibility of such an approach. Although this experiment
demonstrated that single electrons could be detected the chip did not
provide...
Giovanni Ambrosi
(INFN Perugia)
22/02/2007, 16:20
Contributed Talk
Eight layers of double sided silicon microstrip sensors embedded in a 0.8 T
magnetic field constitute the core of the AMS-02 apparatus. In each layer,
simultaneous measurements of position and energy loss in silicon are
performed along the particle trajectory. With its high spatial resolution, the
silicon tracker will determine the rigidity (R) and the charge sign of particles
up to...
Henning Gast
(RWTH Aachen)
22/02/2007, 16:45
Contributed Talk
The best measurement of the cosmic ray positron flux available today was
performed by the HEAT balloon experiment more than 10 years ago. Given
the limitations in weight and power consumption for balloon experiments,
a novel approach was needed to design a detector which could increase the
existing data by more than a factor of 100.
Using silicon photomultipliers for the readout of a...
Nahee Park
(Ewha University)
22/02/2007, 17:10
Contributed Talk
The Cosmic Ray Energetics And Mass (CREAM) balloon-borne experiment is
designed for direct measurement of high-energy cosmic-ray particles. The
science goal is to measure the single-element fluxes of all cosmic-ray nuclei
from hydrogen (protons) to iron with energies up to the ”knee”, or spectral
index change, near 10 15 eV observed in the all-particle spectrum. A dual
layer Silicon...
Ronaldo Bellazzini
(INFN Pisa)
22/02/2007, 17:35
Contributed Talk
We report on a UV photo-detector with single electron sensitivity and excel-
lent imaging capabilities. It is based on a semitransparent CsI photocathode
followed by a Gas Electron Multiplier (GEM) foil and by a large area, cus-
tom, analog, VLSI ASIC. The avalanche charge produced in a GEM hole
is extracted and measured by the CMOS chip that is at the same time the
pixelized charge...
Kaori Hattori
(Kyoto University)
22/02/2007, 18:00
Contributed Talk
Following the successful astronomical observation by COMPTEL onboard
GRO, a Compton telescope with higher performance is required. With COMP-
TEL a direction of a recoil electron was not measured, so an origin of the
incident photon could only be reconstructed to a cone. Measuring the direc-
tion of recoil electron reduces the Compton cone to a segment of the cone,
and realizes the...
