A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A Novel Calibration System for SSC Electromagnetic Calorimeters
Abstract A fast effective calibration technique has been developed for future Superconducting Super Collider (SSC) calorimeters based upon the radiative capture of protons from a pulsed RadioFrequency Quadrupole (RFQ) accelerator in a fluoride target. The intense flux of low energy photons acts as a clean “pulse generator” calibration signal equivalent to 20 GeV or more. This calibration technique has been demonstrate with a bismuth germanate (BGO) detector array, as well as with several barium fluoride detector crystals, to provide a calibration accuracy of 0.5% within two minutes. The SSC calibration has resulted from the development of this novel technique by Caltech over the past 5 years for the L3 BGO electromagnetic calorimeter, which uses a lithium target for the production of 17.6 MeV low energy photons as a calibration source. Proven techniques have also been developed to provide an in situ calibration for all 11,000 BGO detector crystals, with an absolute accuracy of 0.8% obtainable in 1–2 hours. The results of two experimental tests using the AccSys RFQ accelerator are reported, as is the preliminary design of a small storage ring that can be used to compress the output beam pulse from the RFQ accelerator into a target beam pulse of 100 nsec or less.
A Novel Calibration System for SSC Electromagnetic Calorimeters
Abstract A fast effective calibration technique has been developed for future Superconducting Super Collider (SSC) calorimeters based upon the radiative capture of protons from a pulsed RadioFrequency Quadrupole (RFQ) accelerator in a fluoride target. The intense flux of low energy photons acts as a clean “pulse generator” calibration signal equivalent to 20 GeV or more. This calibration technique has been demonstrate with a bismuth germanate (BGO) detector array, as well as with several barium fluoride detector crystals, to provide a calibration accuracy of 0.5% within two minutes. The SSC calibration has resulted from the development of this novel technique by Caltech over the past 5 years for the L3 BGO electromagnetic calorimeter, which uses a lithium target for the production of 17.6 MeV low energy photons as a calibration source. Proven techniques have also been developed to provide an in situ calibration for all 11,000 BGO detector crystals, with an absolute accuracy of 0.8% obtainable in 1–2 hours. The results of two experimental tests using the AccSys RFQ accelerator are reported, as is the preliminary design of a small storage ring that can be used to compress the output beam pulse from the RFQ accelerator into a target beam pulse of 100 nsec or less.
A Novel Calibration System for SSC Electromagnetic Calorimeters
Zhu, Ren-yuan (author) / Ma, Hong (author) / Newman, Harvey (author) / Hamm, Robert (author)
Supercollider 1 ; 587-604
1989-01-01
18 pages
Article/Chapter (Book)
Electronic Resource
English
British Library Online Contents | 2006
Simple analog computing conductive calorimeters
| Tema Archive | 1989
Grout Analysis for EC and CC Calorimeters
| NTIS | 1987
Development of Radhard VLSI Electronics for SSC Calorimeters
| Springer Verlag | 1989