K. Klein
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View article: Hybrids pre-production results for the CMS Outer Tracker Phase-2 Upgrade
Hybrids pre-production results for the CMS Outer Tracker Phase-2 Upgrade Open
The CMS Tracker Phase-2 Upgrade requires the production of two co-planar strip sensor (2S) modules, and strip and macro-pixel sensor (PS) modules to cope with the requirements of the HL-LHC. Altogether 47520 hybrid circuits are required to…
View article: Insights gained from test system preparation for the hybrids production for the CMS Phase-2 Outer Tracker
Insights gained from test system preparation for the hybrids production for the CMS Phase-2 Outer Tracker Open
The CMS Phase-2 Outer Tracker requires the manufacturing of 8000 Strip-Strip and 5880 Pixel-Strip silicon modules, altogether incorporating 47 520 hybrid circuits of 18 variants. To ensure complete functionality of the modules it is essent…
View article: Hybrid designs and kick-off batch production experience for the CMS Phase-2 Upgrade
Hybrid designs and kick-off batch production experience for the CMS Phase-2 Upgrade Open
The CMS Tracker Phase-2 Upgrade requires the production of new sensor modules to cope with the requirements of the HL-LHC. The two main building blocks of the Outer Tracker are the Strip-Strip and Pixel-Strip modules. All-together 47'520 h…
View article: The scientific potential and technological challenges of the High-Luminosity Large Hadron Collider program
The scientific potential and technological challenges of the High-Luminosity Large Hadron Collider program Open
We present an overview of the High-Luminosity (HL-LHC) program at the Large Hadron Collider (LHC), its scientific potential and technological challenges for both the accelerator and detectors. The HL-LHC program is expected to start circa …
View article: The CMS tracker upgrade for the High Luminosity LHC
The CMS tracker upgrade for the High Luminosity LHC Open
The CMS detector features the world's largest silicon tracker, comprising a strip and a pixel detector. However, the CMS tracker is expected to reach the end of its lifetime after Run 3 of the LHC, and a new device will be installed during…
View article: Power hybrids for silicon modules with macro-pixel and strip sensors for the CMS Phase-2 tracker upgrade
Power hybrids for silicon modules with macro-pixel and strip sensors for the CMS Phase-2 tracker upgrade Open
In the framework of the Phase-2 upgrade of the CMS tracker for the High Luminosity LHC, a power hybrid for usage in silicon sensor modules with macro-pixel and strip sensors has been developed. The power hybrid features three DC-DC convert…
View article: Service hybrids for the silicon strip modules of the CMS Phase-2 Outer Tracker upgrade
Service hybrids for the silicon strip modules of the CMS Phase-2 Outer Tracker upgrade Open
This paper describes prototyping work for service hybrids, flexible circuits that form an integral part of the silicon strip modules to be used in the CMS Phase-2 Outer Tracker. The service hybrid is responsible for power distribution, dat…
View article: Functional Tests of 2S Modules for the CMS Phase-2 Tracker Upgrade with a MicroTCA-Based Readout System
Functional Tests of 2S Modules for the CMS Phase-2 Tracker Upgrade with a MicroTCA-Based Readout System Open
First full size 2S module prototypes for the CMS Phase-2 Outer Tracker Upgrade have been assembled. With two sensors of realistic dimensions and 16 CBC2 readout ASICs on two front-end hybrids, the characteristics of these novel and complex…
View article: Test beam performance measurements for the Phase I upgrade of the CMS pixel detector
Test beam performance measurements for the Phase I upgrade of the CMS pixel detector Open
A new pixel detector for the CMS experiment was built in order to cope with the instantaneous luminosities anticipated for the Phase I Upgrade of the LHC . The new CMS pixel detector provides four-hit tracking with a reduced material budge…
View article: First Implementation of a two-stage DC-DC conversion powering scheme for the CMS Phase-2 outer tracker
First Implementation of a two-stage DC-DC conversion powering scheme for the CMS Phase-2 outer tracker Open
The 2S silicon strip modules for the CMS Phase-2 tracker upgrade will require two operating voltages. These will be provided via a two-step DC-DC conversion powering scheme, in which one DC-DC converter delivers 2.5\\,V while the second DC…
View article: Enabling Technologies for Silicon Microstrip Tracking Detectors at the HL-LHC
Enabling Technologies for Silicon Microstrip Tracking Detectors at the HL-LHC Open
While the tracking detectors of the ATLAS and CMS experiments have shown excellent performance in Run 1 of LHC data taking, and are expected to continue to do so during LHC operation at design luminosity, both experiments will have to exch…
View article: Experience from design, prototyping and production of a DC-DC conversion powering scheme for the CMS Phase-1 Pixel Upgrade
Experience from design, prototyping and production of a DC-DC conversion powering scheme for the CMS Phase-1 Pixel Upgrade Open
The CMS Collaboration has adopted a DC-DC conversion powering scheme for the Phase-1 Upgrade of its pixel detector. DC-DC buck converters with a conversion ratio of around 3 are installed on the support structures, outside of the sensitive…