scholarly journals Tracking and Level-1 triggering in the forward region of the ATLAS Muon Spectrometer at sLHC

2012 ◽  
Vol 7 (01) ◽  
pp. C01048-C01048 ◽  
Author(s):  
B Bittner ◽  
J Dubbert ◽  
H Kroha ◽  
R Richter ◽  
P Schwegler
Keyword(s):  
Forward Region ◽  
Muon Spectrometer ◽  
Level 1

scholarly journals The Muon Spectrometer Barrel Level-1 Trigger of the ATLAS Experiment at LHC

2006 ◽  
Vol 53 (4) ◽  
pp. 2446-2451 ◽  
Author(s):  
A. Aloisio ◽  
G. Carlino ◽  
F. Conventi ◽  
R. De Asmundis ◽  
V. Izzo ◽  
...  
Keyword(s):  
Muon Spectrometer ◽  
Atlas Experiment ◽  
Level 1

scholarly journals The Muon Spectrometer Barrel Level-1 Trigger of the Atlas Experiment at LHC

2006 ◽  
Author(s):  
A. Aloisio ◽  
G. Carlino ◽  
G. Ciapetti ◽  
F. Conventi ◽  
R. de Asmundis ◽  
...  
Keyword(s):  
Muon Spectrometer ◽  
Atlas Experiment ◽  
Level 1

scholarly journals Implementation of the DCS System for the validation of MM HV Boards and the DCS System of the new BIS78 Chambers for the upgrade of muon system of the ATLAS Experiment

2021 ◽  
Vol 2105 (1) ◽  
pp. 012027
Author(s):  
Ioannis Drivas-Koulouris
Keyword(s):  
Phase I ◽  
Transition Region ◽  
Pilot Project ◽  
Position Measurement ◽  
Forward Region ◽  
Precise Position ◽  
Muon Spectrometer ◽  
Trigger Rate ◽  
New Type ◽  
New Generation

Abstract The ATLAS Muon Spectrometer is going through upgrades on the Phase I in order to achieve higher rates for the upcoming LHC runs. The two main projects of this Phase I upgrade are the New Small Wheels (NSW), which are expected to complement the ATLAS muon spectrometer in the end-cap regions and a smaller size project, known as BIS78 (Barrel Inner Small sectors). The NSW is expected to replace the Small Wheel (SW) and it will be installed in the ATLAS underground cavern during the summer by the end of the LHC Long Shutdown 2. This new system will be consisted by two prototype detectors, the sTGC (small Thin Gas Chambers) and the resistive Micromegas (MM). In order to cope with higher LHC luminosities, the installation of NSW will help the reduction of the trigger rate in the forward region. With half of the rate in the barrel-endcap transition region reduced by the existing TGCs, the other half of the fake trigger rate in transition region will be reduced by the new BIS78 stations. The BIS78 subproject foresees the replacement of the existing Monitored Drift Tubes (MDTs), used for the precise position measurement in this area, with muon stations formed by integrated smaller diameter tubes (sMDT) and a new generation of RPCs, capable of withstanding the higher rates and provide a robust standalone muon confirmation. The existing BIS7 and BIS8 MDT Chambers will be replaced by 16 new muon stations of one small (sMDT) chamber and two RPC triplets, and it will be the pilot project for the Phase II BI Upgrade. This work is divided into two parts. First will be presented the development and the implementation of a Detector Control System (DCS) for the HV system for the MM detectors of NSW and specifically the validation of a new type of HV Boards (A7038AP). Second, the development of the DCS for the monitoring and operation of the new sMDT chambers of the MDT Sub-System will be presented.

An overview of the ATLAS New Small Wheel Micromegas construction project at Aristotle University

2020 ◽  
Vol 35 (34n35) ◽  
pp. 2044009
Author(s):  
C. Lampoudis ◽  
D. Sampsonidis ◽  
I. Karkanias ◽  
S. Kompogiannis
Keyword(s):  
Spatial Resolution ◽  
Background Radiation ◽  
Rate Capability ◽  
Inhomogeneous Magnetic Field ◽  
Forward Region ◽  
High Background ◽  
Precision Tracking ◽  
Level 1 ◽  
New System ◽  
Design Construction

The upcoming luminosity upgrade of the LHC will impose new requirements for the detector installations. To perform under these conditions the Micromegas (MM) technology was selected to be adopted in the New Small Wheel (NSW) upgrade, dedicated to precision tracking. A large surface of the forward regions of the Muon Spectrometer will be equipped with 8 layers of MM modules forming a total active area of 1200 m2. The NSW is planned to be installed in the forward region of [Formula: see text] of ATLAS. This new system will have to operate in a high background radiation region, while reconstructing muon tracks as well as furnishing information for the Level-1 trigger. The project requires fully efficient MM chambers with spatial resolution down to 100 [Formula: see text]m, a rate capability up to about 15 kHz/cm2 and operation in a moderate (highly inhomogeneous) magnetic field up to [Formula: see text][Formula: see text]T. The required tracking is linked to the intrinsic spatial resolution in combination with the demanding mechanical accuracy. An overview of the design, construction and QA/QC procedures followed at the Aristotle University of Thessaloniki for the Micromegas LM2 Drift panels production will be presented.

Ultrastructural study on the development of rat amygdaloid body

1990 ◽  
Vol 48 (3) ◽  
pp. 432-433
Author(s):  
A. Manolova ◽  
S. Manolov
Keyword(s):  
Nerve Cells ◽  
Amygdaloid Complex ◽  
Amygdaloid Body ◽  
Thin Ring ◽  
Morphological Criteria ◽  
Neural Processes ◽  
Abundant Cytoplasm ◽  
Level 1 ◽  
Few Data ◽  
Oval Shape

Relatively few data on the development of the amygdaloid complex are available only at the light microscopic level (1-3). The existence of just general morphological criteria requires the performance of other investigations in particular ultrastructural in order to obtain new and more detailed information about the changes in the amygdaloid complex during development.The prenatal and postnatal development of rat amygdaloid complex beginning from the 12th embrionic day (ED) till the 33rd postnatal day (PD) has been studied. During the early stages of neurogenesis (12ED), the nerve cells were observed to be closely packed, small-sized, with oval shape. A thin ring of cytoplasm surrounded their large nuclei, their nucleoli being very active with various size and form (Fig.1). Some cells possessed more abundant cytoplasm. The perikarya were extremely rich in free ribosomes. Single sacs of the rough endoplasmic reticulum and mitochondria were observed among them. The mitochondria were with light matrix and possessed few cristae. Neural processes were viewed to sprout from some nerve cells (Fig.2). Later the nuclei were still comparatively large and with various shape.

Outcome der Geburtseinleitungen in einem Perinatalzentrum Level 1 in Bayern

2011 ◽  
Vol 215 (S 01) ◽  
Author(s):  
S Fürst ◽  
M Delius ◽  
F Karambiri ◽  
D Jacoby ◽  
U Hasbargen
Keyword(s):  
Level 1

Die intraartikuläre Therapie der Arthrose mit Hyaluronsäure – Stellenwert 2007

2007 ◽  
Vol 27 (04) ◽  
pp. 225-231
Author(s):  
Ingo Arnold
Keyword(s):  
Ex Vivo ◽  
Level 1

ZusammenfassungDie epidemiologischen Daten unterstreichen die Bedeutung derArthrosekrankheit. Obwohl in den letztenJahren erheb- licheAnstrengungenin immunologischerund pathophysio- logischer Hinsicht unternommen wurden, steht eine zufriedenstellende konservative Behandlungsoption weiterhin aus. Anders als in der internistischen Rheumatologie, wie am Beispiel der Biologicals ersichtlich, fehlt dem Orthopäden im Fall der Arthrose eine zuverlässige Möglichkeit, den Krankheitsverlauf nachhaltig zu beeinflussen. Arthrotische Gelenke zeigen u. a. eine deutlich erniedrigte Hyaluronan- Konzentration. Neben der Möglichkeit derVerbesserung der viskoelastischen Eigenschaften sind inzwischen auch zahlreiche immunmodulatorische Mechanismen im Zusammenhang mit der Gelenkhomöostase unter dem Einfluss von Hyaluronan (überwiegend ex vivo) nachgewiesen. Trotzdem ist unter Berücksichtigung einer umfassenden Übersicht über die zahlreichen Publikationen zu diesem Thema im Sinne eines Evidenzgrades Level 1 eher nur ein moderater Effektfür die allerdings risikoarme intra-artiku- läre Hyaluronan-Therapie abzuleiten. Für eine valide Aussage im direkten Vergleich mit i.a.-Kortikosteroid reicht dagegen die aktuelle Datenlage nicht aus.

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