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CERN Document Server Pronađeno je 121 zapisa  1 - 10slijedećikraj  idi na zapis: Pretraživanje je potrajalo 1.39 sekundi 
1.
THGEM-based detectors for sampling elements in DHCAL: laboratory and beam evaluation / Arazi, L. (Weizmann Inst.) ; Natal da Luz, H. (Coimbra U.) ; Freytag, D. (SLAC) ; Pitt, M. (Weizmann Inst.) ; Azevedo, C.D.R. (Aveiro U.) ; Rubin, A. (Weizmann Inst.) ; Cortesi, M. (Weizmann Inst. ; PSI, Villigen) ; Covita, D.S. (Aveiro U.) ; Oliveira, C.A.B. (Aveiro U.) ; Oliveri, E. (INFN, Pisa ; Siena U.) et al.
We report on the results of an extensive R&D; program aimed at the evaluation of Thick-Gas Electron Multipliers (THGEM) as potential active elements for Digital Hadron Calorimetry (DHCAL). Results are presented on efficiency, pad multiplicity and discharge probability of a 10x10 cm2 prototype detector with 1 cm2 readout pads. [...]
arXiv:1112.1915.- 2011 - 15 p. - Published in : JINST 7 (2012) C05011
Preprint: PDF; External link: Preprint
2.
CsI-THGEM gaseous photomultipliers for RICH and noble-liquid detectors / Breskin, A (Weizmann Inst.) ; Peskov, V (Weizmann Inst. ; CERN) ; Cortesi, M (Weizmann Inst.) ; Budnik, R (Weizmann Inst.) ; Chechik, R (Weizmann Inst.) ; Duval, S (SUBATECH, Nantes ; Weizmann Inst.) ; Thers, D (SUBATECH, Nantes) ; Coimbra, A E.C (Coimbra U. ; Weizmann Inst.) ; dos Santos, J M.F (Coimbra U.) ; Lopes, J A.M (Coimbra U.) et al.
The properties of UV-photon imaging detectors consisting of CsI-coated THGEM electron multipliers are summarized. New results related to detection of Cherenkov light (RICH) and scintillation photons in noble liquid are presented..
arXiv:1009.5883.- 2011 - Published in : Nucl. Instrum. Methods Phys. Res., A 639 (2011) 117-120
External link: Preprint
In : 7th International Workshop on Ring Imaging Cherenkov Detectors, Cassis, Provence, France, 3 - 7 May 2010, pp.117-120
3.
Further evaluation of a THGEM UV-photon detector for RICH - comparison with MWPC / Peskov, V. (Weizmann Inst. ; CERN) ; Cortesi, M. (Weizmann Inst.) ; Chechik, R. (Weizmann Inst.) ; Breskin, A. (Weizmann Inst.)
The operation of single-, double- and triple-THGEM UV-detectors with reflective CsI photocathodes (CsI-THGEM) in Ne/CH4 and Ne/CF4 mixtures was investigated in view of their potential applications in RICH. The studies were carried out with UV, x-rays and {\beta}-electrons and focused on the maximum achievable gain, discharge probability, cathode excitation effects and long-term gain stability. [...]
arXiv:1008.0151.- 2010 - 25 p. - Published in : JINST 5 (2010) P11004 IOP Open Access Article: PDF; Preprint: PDF; External link: Preprint
4.
Towards THGEM UV-photon detectors for RICH: on single-photon detection efficiency in Ne/CH$_{4} and Ne/CF$_4$ / Azevedo, C.D.R. (Aveiro U. ; Weizmann Inst.) ; Cortesi, M. (Weizmann Inst.) ; Lyashenko, A.V. (Weizmann Inst.) ; Breskin, A. (Weizmann Inst.) ; Chechik, R. (Weizmann Inst.) ; Miyamoto, J. (Weizmann Inst.) ; Peskov, V. (Weizmann Inst. ; CERN) ; Escada, J. (Coimbra U. ; Weizmann Inst.) ; Veloso, J.F.C.A. (Aveiro U.) ; dos Santos, J.M.F. (Coimbra U.)
The article deals with the detection efficiency of UV-photon detectors consisting of Thick Gas Electron Multipliers (THGEM) coated with CsI photocathode, operated in atmospheric Ne/CH4 and Ne/CF4 mixtures. We report on the photoelectron extraction efficiency from the photocathode into these gas mixtures, and on the photoelectron collection efficiency into the THGEM holes. [...]
arXiv:0909.5357.- 2010 - 13 p. - Published in : JINST 5 (2010) P01002 IOP Open Access article: PDF; External link: Preprint
In : 1st International Conference on Micro-Pattern Gaseous Detectors, Kolympari, Crete, Greece, 12 - 15 Jun 2009, pp.P01002
5.
THGEM operation in Ne and Ne/CH4 / Cortesi, M (Weizmann Inst.) ; Peskov, V (Weizmann Inst. ; CERN ; St. Etienne, Ecole des Mines) ; Bartesaghi, G (Weizmann Inst. ; Milan U. ; INFN, Milan) ; Miyamoto, J (Weizmann Inst.) ; Cohen, S (Weizmann Inst.) ; Chechik, R (Weizmann Inst.) ; Maia, J M (Coimbra U. ; Beira Interior U.) ; Santos, J M F dos (Coimbra U.) ; Gambarini, G (Milan U. ; INFN, Milan) ; Dangendorf, V (Berlin, Phys. Tech. Bund.) et al.
The operation of Thick Gaseous Electron Multipliers (THGEM) in Ne and Ne/CH4 mixtures, features high multiplication factors at relatively low operation potentials, in both single- and double-THGEM configurations. We present some systematic data measured with UV-photons and soft x-rays, in various Ne mixtures. [...]
arXiv:0905.2916.- 2009 - Published in : JINST 4 (2009) P08001 SISSA/IOP Open Access article : PDF; External link: Preprint
6.
2-D imaging with cascaded GEM/MHSP multipliers / Maia, J M ; Mörmann, D ; Breskin, Amos ; Chechik, R ; Veloso, J F C A ; Dos Santos, J M F
The imaging properties of cascaded-GEM (Gas Electron Multiplier) and cascaded-GEM/MHSP (Micro-Hole and Strip Plate) gaseous electron multipliers, equipped with 2-D Wedge & Strip (W&S;) readout electrodes, are presented. The W&S; electrode was capacitively coupled to the electron multiplier through a resistive electrode, to adapt the charge-cloud size to the 1.6 mm readout pitch. [...]
2007 - Published in : JINST 2 (2007) P09008
7.
Review of the Development of Caesium Iodide Photocathodes for Application to Large RICH Detectors / ALICE Collaboration
CsI photocathodes were studied in order to evaluate their potential use as large photo converters in RICH detectors for the PID system at ALICE (LHC in heavy-ion collider mode). It has been demonstrated that a quantum efficiency comparable to the reference value obtained on small samples can be obtiained on CsI layers evaporated on large pad electrodes operated in a MWPC at atmospheric pressure. [...]
ALICE-INT-1995-13; CERN-ALICE-INT-1995-13.- Geneva : CERN, 1995
8.
Drift velocity in n-pentane mixtures and its influence on timing properties of Thin Gap Chambers / Breskin, Amos ; Chechik, R ; Lazic, D ; Lellouch, D ; Lupu, N ; Malamud, G ; Mikenberg, G ; Mincer, A ; Nagai, K ; Pansky, A et al.
ATL-MUON-98-230 ; ATL-M-PN-230.
- 1998.
Access to fulltext document - Access to fulltext document
9.
Electron Emission For Ultrananocrystalline Diamond Films / Krauss, A R ; Auciello, O ; Ding, M Q ; Gruen, D M ; Huang, Y ; Zhirnov, V V ; Givargizov, E I ; Breskin, Amos ; Chechik, R ; Shefer, E et al.
2001 - Published in : J. Appl. Phys. 89 (2001) 2958 External link: Fulltext from Weizmann Institute of Science
10.
The Effect Of Moderate Heating On The Negative Electron Affinity And Photoyield Of Air-exposed H-terminated Cvd Diamond. / Piantanida, G ; Breskin, Amos ; Chechik, R ; Katz, O ; Laikhtman, A ; Hoffman, A ; Coluzza, C
2001 - Published in : J. Appl. Phys. 89 (2001) 8259 External link: Fulltext from Weizmann Institute of Science

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