MDT BIS module 0 tube assembly

This note describes the University of Athens Muon Drift Tube assembly line. The nessecary tooling together with the procedure followed for the wiring is presented. Experience and results of the performance are described based on the assembly of 295 tubes used for the BIS module 0 prototype

Improvements/Experience derived from wiring 10% of BIS MDTs

This note describes the improvements performed to the University of Athens Muon Drift Tube assembly line. All implemented QA/QC tests are described. Experience and results of the performance are extracted from the assembly of more than 10% of the BIS tubes

The first precision drift tube chambers for the ATLAS muon spectrometer

The muon spectrometer of the ATLAS detector for the Large Hadron Collider is designed to provide a muon transverse momentum resolution of 2-10% for momenta between 6 GeV and 1 TeV over a pseudo-rapidity range of |eta |< 2.7. This required the development of precision drift chambers with a track position resolution of 40 micrometer, the Monitored Drift Tube (MDT) chambers. We report about the construction of the three main types of MDT chambers for ATLAS, test results and the first production experience

The first precision drift tube chambers for the ATLAS muon spectrometer

The muon spectrometer of the ATLAS detector for the Large Hadron Collider is designed to provide a muon transverse momentum resolution of 2%-10% for momenta between 6 GeV and 1 TeV over a pseudo-rapidity range of |η|≤2.7. This required the development of precision drift chambers with a track position resolution of 40 μm, the Monitored Drift Tube (MDT) chambers. We report about the construction of the three main types of MDT chambers for ATLAS, test results and the first production experience. © 2002 Elsevier Science B.V. All rights reserved

Postoperative critical care and high-acuity care provision in the United Kingdom, Australia, and New Zealand

BACKGROUND: Decisions to admit high-risk postoperative patients to critical care may be affected by resource availability. We aimed to quantify adult ICU/high-dependency unit (ICU/HDU) capacity in hospitals from the UK, Australia, and New Zealand (NZ), and to identify and describe additional 'high-acuity' beds capable of managing high-risk patients outside the ICU/HDU environment. METHODS: We used a modified Delphi consensus method to design a survey that was disseminated via investigator networks in the UK, Australia, and NZ. Hospital- and ward-level data were collected, including bed numbers, tertiary services offered, presence of an emergency department, ward staffing levels, and the availability of critical care facilities. RESULTS: We received responses from 257 UK (response rate: 97.7%), 35 Australian (response rate: 32.7%), and 17 NZ (response rate: 94.4%) hospitals (total 309). Of these hospitals, 91.6% reported on-site ICU or HDU facilities. UK hospitals reported fewer critical care beds per 100 hospital beds (median=2.7) compared with Australia (median=3.7) and NZ (median=3.5). Additionally, 31.1% of hospitals reported having high-acuity beds to which high-risk patients were admitted for postoperative management, in addition to standard ICU/HDU facilities. The estimated numbers of critical care beds per 100 000 population were 9.3, 14.1, and 9.1 in the UK, Australia, and NZ, respectively. The estimated per capita high-acuity bed capacities per 100 000 population were 1.2, 3.8, and 6.4 in the UK, Australia, and NZ, respectively. CONCLUSIONS: Postoperative critical care resources differ in the UK, Australia, and NZ. High-acuity beds may have developed to augment the capacity to deliver postoperative critical care