11th Vienna Conference on Instrumentation - VCI 2007

Session

Session 4

s4

20 Feb 2007, 14:00

HS1 (Univ. of Technology)

48. Detectors for neutron scattering and synchrotron radiation

Graham Smith (BNL)

20/02/2007, 14:00

Invited Talk

Neutrons and X-rays are two of the most important probes in studies of materials and physical phenomena. Throughout the world, major user facilities with beams of ever-increasing intensity of both types of radiation have been constructed or planned in recent years. This has created a need for neutron and Xray detectors with greater sophistication and higher counting rate capability....

58. Micromegas TPC studies at high magnetic fields using the charge dispersion signal

David Attie (CEA Saclay)

20/02/2007, 14:50

Contributed Talk

The Time Pro jection Chamber (TPC) for the International Linear Collider (ILC) will measure about 200 track points with a resolution close to 100 μm. A Micro Pattern Gas Detector (MPGD) readout TPC may achieve the target resolution with existing techniques using 1 mm or narrower pads at the expense of increasing the detector cost and complexity. The new MPGD readout technique of...

60. Performance of MPGD-based TPC Prototypes for the Linear Collider Experiment

Makoto Kobayashi (KEK)

20/02/2007, 15:15

Contributed Talk

Time projection chamber (TPC) is considered as a strong candidate for the central tracker at the future linear collider experiment because of its large volume coverage and high three-dimensional granularity. Since the performance of TPC depends on its readout scheme we have conducted a series of experiments in order to compare the performance of prototype TPCs equipped with different...

42. New GEM Detectors for Tracking and Triggering

Leszek Ropelewski (CERN)

20/02/2007, 16:30

Contributed Talk

Since its introduction in 1996 GEM (Gas Electron Multiplier) has attracted a lot of interest due to many promising features: good position accuracy and two track resolution, high rate capability, high radiation tolerance and time stability, large flexibility of the geometrical shapes and readout schemes. This has led to a wide range of applications from simple tracking and triggering...

46. A Triple-GEM Detector with Pixel Readout for High-Rate Beam Tracking

Florian Haas (Technische Universitat Munchen)

20/02/2007, 16:55

Contributed Talk

For its physics program with a high-intensity hadron beam of 2·10 7 particles/s, the COMPASS experiment at CERN requires tracking of charged particles scattered by very small angles with respect to the incident beam. While good resolution in time and space is mandatory, the challenge is imposed by the high beam intensity, requiring radiation hard detectors which add very little...

77. Two-phase avalanche detectors based on gas electron multipliers

Denis Pavlyuchenko (Budker Inst. Novosibirsk)

20/02/2007, 17:20

Contributed Talk

The performances of two-phase Ar and Xe avalanche detectors were studied, aiming at their potential application in low-background experiments, such as those of coherent neutrino-nucleus scattering and dark matter search. The two-phase avalanche detector had a liquid Ar or Xe layer and a triple-GEM multiplier operated in the saturated vapour above the liquid phase. The suc- cessful...

78. Three-dimensional reconstruction of single-electron clusters in a gaseous detector read out by the TimePix pixel circuit

Jan Timmermans (NIKHEF Amsterdam)

20/02/2007, 17:45

Contributed Talk

In recent years the detection of minimum ionising particles in a gaseous detector by means of a CMOS pixel readout circuit as direct anode, has been demonstrated. Sofar the used pixel circuitry provided only a 2-dimensional projection of the position of the primary ionisation clusters. In the newly developed TimePix chip, based on the earlier used Medipix2 chip, each pixel also has...

75. Development of innovative micropattern gaseous detectors with resistive electrodes and first results of their applications

Vladimir Peskov (KTH Stockholm)

20/02/2007, 18:10

Contributed Talk

Recently developed micropattern gaseous detectors open new avenues in the detectors technology. However, due to the fine structure of their electrodes, these detectors are quite fragile and can be damaged by sparks. We have developed and successfully tested several prototypes of micropattern gaseous detectors based on a new design in which the cathode or the anode (in some case both...