An ionization chamber shower detector for the LHC Luminosity Monitor [electronic resource].
- Published
- Berkeley, Calif. : Lawrence Berkeley National Laboratory, 2000.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Additional Creators
- Lawrence Berkeley National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
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- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- The front IR quadrupole absorbers (TAS) and the IR neutral particle absorbers (TAN) in the high luminosity insertions of the Large Hadron Collider (LHC) each absorb approximately 1.8 TeV of forward collision products on average per pp interaction (~;;235W at design luminosity 1034cm-2s-1). This secondary particle flux can be exploited to provide a useful storage ring operations tool for optimization of luminosity. A novel segmented, multi-gap, pressurized gas ionization chamber is being developed for sampling the energy deposited near the maxima of the hadronic/ electromagnetic showers in these absorbers. The system design choices have been strongly influenced by optimization of signal to noise ratio and by the very high radiation environment. The ionization chambers are instrumented with low noise, fast, pulse shaping electronics to be capable of resolving individual bunch crossings at 40 MHz. Data on each bunch are to be separately accumulated over multiple bunch crossings until the desired statistical accuracy is obtained. At design luminosity approximately 2x103 bunch crossings will suffice for a 1percent luminosity measurement. In this paper we report the first experimental results of the ionization chamber and analog electronics. Single 450GeV protons from the SPS at CERN are used to simulate the hadronic/electromagnetic showers produced by the forward collision products from the interaction regions of the LHC.
- Report Numbers
- E 1.99:lbnl-47438
lbnl-47438 - Other Subject(s)
- Note
- Published through SciTech Connect.
10/01/2000.
"lbnl-47438"
IEEE Transactions on Nuclear Science 49 1 ISSN 0018-9499; IETNAE FT
2000 IEEE Nuclear Science Symposium, Lyon, France, Oct. 15-21, 2000.
Schmickler, H.; Turner, W.C.; Haguenauer, M.; Datte, P.S.; Millaud, J.E.; Placidi, M.; Ratti, L.; Speziali, V.; Beche, J.F.; Burks, M.T.; manfredi, P.F.; Re, V.; Riot, V.J.
Accelerator&
Fusion Research Division - Funding Information
- DE-AC02-05CH11231
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