التفاصيل البيبلوغرافية
| العنوان: |
High Precision Survey and Alignment of Large Linear Accelerators |
| المؤلفون: |
Prenting, J, Schlösser, M |
| سنة النشر: |
2004 |
| المجموعة: |
CERN Document Server (CDS) |
| مصطلحات موضوعية: |
Accelerators and Storage Rings |
| الوصف: |
For the future linear accelerator TESLA the demanded accuracy for the alignment of the components is 0.5 mm horizontal and 0.2 mm vertical, both on each 600 m section. Other accelerators require similar accuracies. These demands can not be fulfilled with open-air geodetic methods, mainly because of refraction. Therefore the RTRS (Rapid Tunnel Reference Surveyor), a measurement train performing overlapping multipoint alignment on a reference network is being developed. Two refraction-free realizations of this concept are being developed at the moment: the first one (GeLiS) measures the horizontal co-ordinates using stretched wires, combined with photogrammetric split-image sensors in a distance measurement configuration. In areas of the tunnel where the accelerator is following the earth curvature GeLiS measures the height using a new hydrostatic leveling system. The second concept (LiCAS) is based on laser straightness monitors (LSM) combined with frequency scanning interferometry (FSI) in an evacuated system. LiCAS measures both co-ordinates with respect to its LSM-beam and is thus suitable for geometrically straight tunnel sections. Both measurement systems will be placed on a train, which could do the reference survey autonomously. |
| نوع الوثيقة: |
other/unknown material |
| اللغة: |
English |
| العلاقة: |
http://cds.cern.ch/record/925607Test; oai:cds.cern.ch:925607 |
| الإتاحة: |
http://cds.cern.ch/record/925607Test |
| رقم الانضمام: |
edsbas.C947395B |
| قاعدة البيانات: |
BASE |
