A large TPC prototype for a linear collider detector

Schade, P.; Kamiński, J.

doi:10.1016/j.nima.2010.06.300

Cited by 50 publications

(7 citation statements)

References 14 publications

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“…It is essentially a precisely aligned double-mesh layer with an embedded insulating spacer in-between, to be referred to as the gating foil hereafter in the present paper. The gating foil with a frame can be mounted on top of the amplification GEM stack or Micromegas, with either ordinary pad readout or pixel readout [23,24], just like an additional ordinary GEM foil, thereby realizing a wire-less gas amplification device for TPCs with ion-blocking capability 7 .…”

Section: Introductionmentioning

confidence: 99%

Measurement of the electron transmission rate of the gating foil for the TPC of the ILC experiment

Kobayashi

Ogawa

Shoji

et al. 2019

Nuclear Instruments and Methods in Physics Research Section A:

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We have developed a gating foil for the time projection chamber envisaged as a central tracker for the international linear collider experiment. It has a structure similar to the Gas Electron Multiplier (GEM) with a higher optical aperture ratio and functions as an ion gate without gas amplification. The transmission rate for electrons was measured in a counting mode for a wide range of the voltages applied across the foil using an 55 Fe source and a laser in the absence of a magnetic field. The blocking power of the foil against positive ions was estimated from the electron transmissions.1 The coordinate offset (bias) at short drift distances intrinsic to the barycenter method for the hit point reconstruction in a pad row is assumed to have been properly removed.2 The positive ions are assumed to be iso-C 4 H 10 + . The figures in Ref. [19] suggest that the dominant (final) positive ions are most likely hydrocarbons, at least in the case of binary mixtures of CF 4 and a hydrocarbon.3 The displacement is largest at the maximum drift distance as expected, and at the minimum detector radius because the center of gravity of the beam-induced background, and therefore that of charge density within the ion disk is closer to the inner field cage.

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Section: Introductionmentioning

confidence: 99%

Measurement of the electron transmission rate of the gating foil for the TPC of the ILC experiment

Kobayashi

Ogawa

Shoji

et al. 2019

Nuclear Instruments and Methods in Physics Research Section A:

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“…An alternative which is being studied intensely is the use of micro-pattern gas detectors as readout systems in a TPC [54]. Gas electron multipliers (GEM) [55,56] or Micro Mesh Chambers Micromegas (MM) [57,58] are two recent technologies under investigation.…”

Section: Gaseous Trackingmentioning

confidence: 99%

Future Developments of Detectors

Behnke¹,

Buesser²,

Mussgiller³

2020

Particle Physics Reference Library

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Large scale detectors in particle physics take many years to plan and to build. The last generation of large particle physics detectors for the energy frontier, ATLAS and CMS, have been operating for more than 10 years, and upgrades for them are now being done. Studies for the next generation of experimental facilities have been ongoing for a number of years. In this section future directions in integrated detector design are discussed, as they were visible at the time of writing this report. At the moment the biggest approved project in particle physics is the upgrade of the Large Hadron Collider (LHC) towards high luminosity running. This project is scheduled to be completed by 2027, and major upgrades to the two main collider detectors ATLAS and CMS are planned. Beyond the LHC, an electron-positron collider has been discussed for many years, to fully explore the Higgs and the top sector and to complement the discovery reach of a hadron machine at the energy frontier with a high precision program. The requirements as far as detectors are concerned are very different for these two types of projects: for the LHC luminosity upgrade fundamental changes to the underlying philosophy of the existing detectors are not possible, but significant technological development is needed to meet the challenges of extreme radiation environments and high event rates. For a yet not existing electron-positron collider a detector can be designed from ground up, optimised to meet the ambitious physics agenda of such a facility.

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“…Since the end of 2008, the LCTPC collaboration operates the LP, a prototype for the ILD TPC at DESY [128]. It consists of a field cage with a diameter of 75 cm and a length of about 56 cm.…”

Section: The Large Tpc Prototype and Test Beam Area At Desymentioning

confidence: 99%