Development of Precision Muon Drift Tube Detectors for the High-Luminosity Upgrade of the LHC

2011 ◽  
Vol 215 (1) ◽  
pp. 143-146 ◽  
Author(s):  
B. Bittner ◽  
J. Dubbert ◽  
S. Horvat ◽  
M. Kilgenstein ◽  
O. Kortner ◽  
...  
Keyword(s):  
Drift Tube ◽  
High Luminosity

scholarly journals Trigger primitive generation algorithm in the CMS barrel muon chambers during HL-LHC

2021 ◽  
Vol 16 (12) ◽  
pp. C12009
Author(s):  
N. Trevisani
Keyword(s):  
Pattern Recognition ◽  
Drift Tube ◽  
Hardware Implementation ◽  
Phase 2 ◽  
Bayes Classifier ◽  
High Luminosity ◽  
Bending Angle ◽  
Generation Algorithm ◽  
Grouping Pattern ◽  
Resistive Plate Chambers

Abstract This contribution presents an update on the Analytical Method (AM) algorithm for trigger primitive (TP) generation in the CMS Drift Tube (DT) chambers during the High Luminosity LHC operation (HL-LHC or LHC phase 2). The algorithm has been developed and validated both in software with an emulation approach, and through hardware implementation tests. The algorithm is mainly divided into the following steps: a grouping (pattern recognition) step that finds the path of a given muon, a fitting step to extract the track parameters (position and bending angle), and a correlation step that matches the information from the different super-layers and with signal from the resistive plate chambers. Agreement between the software emulation and the firmware implementation has been verified using different data samples, including a sample of real muons collected during 2016 data taking. In this contribution, an update of the grouping step using a pseudo-Bayes classifier will be discussed.

scholarly journals Performance of drift-tube detectors at high counting rates for high-luminosity LHC upgrades

2013 ◽  
Vol 732 ◽  
pp. 250-254 ◽  
Author(s):  
Bernhard Bittner ◽  
Jörg Dubbert ◽  
Oliver Kortner ◽  
Hubert Kroha ◽  
Alessandro Manfredini ◽  
...  
Keyword(s):  
Drift Tube ◽  
High Luminosity

Toward an Orbit for the High‐Luminosity Cepheid T Monocerotis

1999 ◽  
Vol 524 (1) ◽  
pp. 379-393 ◽  
Author(s):  
Nancy Remage Evans ◽  
Kenneth Carpenter ◽  
Richard Robinson ◽  
Derck Massa ◽  
Glenn M. Wahlgren ◽  
...  
Keyword(s):  
High Luminosity

scholarly journals Enhancing biological analyses with three dimensional field asymmetric ion mobility, low field drift tube ion mobility and mass spectrometry (μFAIMS/IMS-MS) separations

The Analyst ◽  
2015 ◽  
Vol 140 (20) ◽  
pp. 6955-6963 ◽  
Author(s):  
Xing Zhang ◽  
Yehia M. Ibrahim ◽  
Tsung-Chi Chen ◽  
Jennifer E. Kyle ◽  
Randolph V. Norheim ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Ion Mobility ◽  
Drift Tube ◽  
Three Dimensional ◽  
Separation Power ◽  
Low Field ◽  
Field Drift

Novel μFAIMS/IMS-MS three dimensional separations were optimized to enhance separation power and selectivity in biological analyses.

scholarly journals Effect of crab cavity high order modes on the coupled-bunch stability of High-Luminosity Large Hadron Collider

2019 ◽  
Vol 22 (5) ◽  
Author(s):  
S. A. Antipov ◽  
N. Biancacci ◽  
J. Komppula ◽  
E. Métral ◽  
B. Salvant ◽  
...  
Keyword(s):  
Large Hadron Collider ◽  
Hadron Collider ◽  
High Order ◽  
High Luminosity

scholarly journals The High-Rate Sealed MRPC to Promote Pollutant Exchange in Gas Gaps: Status on the Development and Observations

2021 ◽  
Vol 11 (11) ◽  
pp. 4722
Author(s):  
Botan Wang ◽  
Xiaolong Chen ◽  
Yi Wang ◽  
Dong Han ◽  
Baohong Guo ◽  
...  
Keyword(s):  
Gas Flow ◽  
High Rate ◽  
Stable Operation ◽  
Beam Test ◽  
High Luminosity ◽  
Rate Test ◽  
3D Printed ◽  
Resistive Plate Chambers ◽  
The Impact ◽  
Current Behavior

This work reports the latest observations on the behavior of two Multigap Resistive Plate Chambers (MRPC) under wide high-luminosity exposures, which motivate the development and in-beam test of the sealed MRPC prototype assembled with low-resistive glass. The operation currently being monitored, together with previous simulation results, shows the impact of gas pollution caused by avalanches in gas gaps, and the necessity to shrink the gas-streaming volume. With the lateral edge of the detector sealed by a 3D-printed frame, a reduced gas-streaming volume of ~170 mL has been achieved for a direct gas flow to the active area. A high-rate test of the sealed MRPC prototype shows that, ensuring a 97% efficiency and 70 ps time resolution, the sealed design results in a stable operation current behavior at a counting rate of 3–5 kHz/cm2. The sealed MRPC will become a potential solution for future high luminosity applications.

scholarly journals IUE Studies of Luminous X-Ray Binaries

1983 ◽  
Vol 6 ◽  
pp. 648-648
Author(s):  
J.B. Hutchings
Keyword(s):  
Magellanic Clouds ◽  
Thick Shell ◽  
High Luminosity ◽  
Uv Spectrum ◽  
X Ray ◽  
Unique Object ◽  
The Future ◽  
Orbit Inclination ◽  
Supercritical Accretion ◽  
X Ray Binaries

IUE has been used to study 11 high luminosity X-ray binaries, of which 3 are in the Magellanic Clouds. In the supergiant systems, X-ray ionisation bubbles have been found in most cases, leading to a greater understanding of the winds and accretion processes. Further studies of precessing objects such as LMC X-4 with IUE and ST are clearly of considerable interest, relating to X-ray heating and blanketing. Detailed studies of the Cyg X-l ionisation bubble may resolve the long standing puzzle of its orbit inclination and masses. UV continua have furnished valuable information on extinction, temperatures and luminosities, and the presence of non-stellar (i.e. disk) luminosity. Here too, more detailed studies are clearly indicated for the future. A unique object of interest is the LMC transient 0538-66 whose UV spectrum has quasarlike lines and luminosity which varies oppositely to the visible. This may be a case of supercritical accretion generating an optically thick shell (“disk”) about the pulsar.

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