Conveners
Calorimeters: 1
- Masaki Fukushima (Institute for Cosmic Ray Research, The University of Tokyo)
Calorimeters: 2
- Manfred Krammer (Institute of High Energy Physics of the Austrian Academy of Sciences)
Felix Sefkow
(Deutsches Elektronen Synchrotron)
27/02/2014, 14:30
Calorimeters
Oral presentation
The development and optimisation of calorimeters for particle methods at future colliders will be discussed. The talk will present the status of experimental validation with emphasis on recent results from test beam data analysis. Examples from current studies on scalable engineering solutions and system integration are shown.
Pavol Strizenec
(Institute of Experimental Physics SAS)
27/02/2014, 14:55
Calorimeters
Oral presentation
The ATLAS experiment is designed to study the protonproton collisions produced at the Large Hadron Collider (LHC) at CERN. Liquid argon sampling calorimeters are used for all electromagnetic calorimetry covering the pseudorapidity region up to 3.2, as well as for hadronic calorimetry in the range 1.4-4.9. The electromagnetic calorimeters use lead as passive material and are characterized by an...
Sergey Filippov
(Institute for Nuclear Research)
27/02/2014, 15:20
Calorimeters
Oral presentation
The LHCb experiment is dedicated to precision measurements of CP violation and rare decays of B hadrons at the Large Hadron Collider (LHC) at CERN (Geneva) [1, 2]. LHCb is a single-arm spectrometer with a forward angular coverage from approximately 10 mrad to 300 mrad. It comprises a calorimeter system composed of four subdetectors [3], selecting transverse energy hadron, electron and photon...
Anton Karneyeu
(Institute for Nuclear Research of the Russian Academy of Sciences)
27/02/2014, 15:45
Calorimeters
Oral presentation
The CMS ECAL is a hermetic, fine grained and homogeneous calorimeter containing 75848 lead-tungstate (PbWO₄) crystals, located inside the CMS superconducting solenoidal magnet. The scintillation light is detected by avalanche photodiodes (APDs) in the barrel section and by vacuum phototriodes (VPTs) in the two endcap sections. A silicon/lead pre-shower detector is installed in front of the...
Oleg Solovyanov
(Institute for High Energy Physics)
27/02/2014, 16:40
Trigger, electronics and DAQ
Oral presentation
The Tile Calorimeter (TileCal) is the central section of the ATLAS hadronic calorimeter at the Large Hadron Collider, a key detector for the measurements of hadrons, jets tau leptons and missing transverse energy. Scintillation light produced in the tiles is transmitted by wavelength shifting fibers to photomultiplier tubes (PMTs).
The resulting electronic signals from approximately 10000...
John Rutherfoord
(University of Arizona)
27/02/2014, 17:10
Calorimeters
Oral presentation
We have uniformly irradiated liquid argon ionization chambers with betas from high-activity Strontium-90 sources.
The radiation environment is similar to that in the liquid argon calorimeters which are part of the ATLAS detector installed at CERN's Large Hadron Collider (LHC). We measured the resulting ionization current over a wide range of applied potential for two different source...
Toshiyuki Iwamoto
(The University of Tokyo)
28/02/2014, 09:00
Calorimeters
Oral presentation
The purpose of the MEG experiment is to look for a lepton flavor violating μ→eγ decay with an unprecedented sensitivity, and we set an upper limit of the branching ratio for this decay, 5.7×10⁻¹³ at 90% C.L. in 2013 which is twenty times more stringent limit than the previous experiment, MEGA. Since the sensitivity improvement of the MEG experiment was limited by the accidental background, we...
Vasiliy Shebalin
(Budker Institute of Nuclear Physics)
28/02/2014, 09:25
Calorimeters
Oral presentation
Since 2010 the CMD-3 detector has been collecting data at the e⁺e⁻ collider VEPP-2000 in the Budker Institute of Nuclear Physics. CMD-3 is a general purpose detector designed to study e⁺e⁻ annihilation into hadrons in the wide energy range, E(c.m.s) = 0.3÷2 GeV. During 3 years of operation detector collected integral luminosity of about 60 nb⁻¹.
The barrel electromagnetic calorimeter of the...
Ravel Akhmetshin
(Budker Institute of Nuclear Physics)
28/02/2014, 09:50
Calorimeters
Oral presentation
The BGO endcap calorimeter was successfully operated in the CMD-2 detector at the VEPP-2M collider. It consists of 680 BGO crystals each with a size of 25×25×150 mm³, arranged in two identical endcaps, with a total crystal weight of 450 kg. The light readout used vacuum phototriodes. The endcap calorimeter has now been upgraded to work in the CMD-3 detector at new collider VEPP-2000. The major...
Vladimir Rykalin
(Institutef for high Energy Physics (Protvino))
28/02/2014, 10:10
Calorimeters
Oral presentation
The new designed at IHEP technologies of polystyrene scintillators manufacturing - molding of polystyrene granules under pressure, melting of granules in forms with mirrors walls, production of scintillating granules and detectors on their basis are considered.
David Hitlin
(California Institute of Technology)
28/02/2014, 11:05
Calorimeters
Oral presentation
Scintillators with fast decay time, such as the barium fluoride fast component (220 nm) or liquid xenon (165 nm) pose a difficult problem for photodetectors. This motivates the development by a Caltech/JPL/RMD collaboration of large area (~10×10 mm) avalanche photodiodes using superlattice doping. These devices have high quantum efficiency and extended UV response and excellent timing...
Kenkichi Miyabayashi
(Nara Women University)
28/02/2014, 11:30
Calorimeters
Oral presentation
The construction of the SuperKEKB electron-positron collider and upgrade of the Belle II spectrometer are going on at KEK aiming at high precision measurements in bottom, charm and tau flavor sectors. We describe a replacement of the electronics for the CsI(Tl) crystal calorimeter with PIN-PD readout to match the luminosity increase up to 800/(nb·sec) at maximum. A plan to replace CsI(Tl)...
Vladimir Shlegel
(Nikolaev Institute of Inorganic Chemistry)
28/02/2014, 11:55
Calorimeters
Oral presentation
Development of detector materials takes place both due to the search of new scintillation crystal, and by improvement of growing technology for already known crystals.
Basically scintillation crystals are grown by traditional techniques under high temperature gradient conditions. In most cases, the temperature gradients nearly growth interface are in the range 40-200 K/cm. In such conditions...
