Gating in the ALEPH time projection chamber

S. R. Amendolia, M. Binder, W. Blum, M. Bykhovsky, A. Caldwell, Michael G. Cherney, D. F. Cowen, D. Demille, A. Farilla, F. Fidecaro, S. H. Gu, Y. N. Guo, J. M. Izen, R. C. Jared, W. Kilgore, I. Lehraus, J. J. Love, P. Maas, P. S. Marrocchesi, R. MatthewsonJ. May, M. Mermikides, E. Milotti, A. Minten, D. Muller, M. J. Price, J. Richstein, R. Richter, L. Rolandi, G. Sanguinetti, D. Schlatter, R. Settles, G. Sinnis, G. Stefanini, U. Stierlin, M. Takashima, W. Tejessy, J. Thomas, A. Vayaki, J. Wear, E. Wicklund, W. Witzeling, S. L. Wu, W. M. Wu

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The ALEPH TPC at LEP will use a gating grid to prevent distortions caused by space charge buildup in its 2.2 m drift region. Sets of measurements have demonstrated the feasibility of a "synchronous ion trapping" mode of gating, which reduces the positive ion flux through the grid by more than two orders of magnitude. A novel mode of gating will be discussed which would permit static operation of the gate, thereby avoiding the complexity of switching between the open and closed states of the gate. This mode would rely on the dissimilar gate penetration properties of electrons and ions in the presence of a magnetic field, and it may also provide a way to partially compensate for the E × B effect at the sense wires. A combination of these different modes is proposed for the ALEPH TPC.

Original languageEnglish
Pages (from-to)403-406
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume252
Issue number2-3
DOIs
StatePublished - Dec 1 1986
Externally publishedYes

Fingerprint

chambers
projection
Ions
Electric space charge
Positive ions
grids
Wire
Magnetic fields
Fluxes
Electrons
positive ions
space charge
ions
penetration
trapping
wire
magnetic fields
electrons

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Nuclear and High Energy Physics
  • Engineering(all)

Cite this

Gating in the ALEPH time projection chamber. / Amendolia, S. R.; Binder, M.; Blum, W.; Bykhovsky, M.; Caldwell, A.; Cherney, Michael G.; Cowen, D. F.; Demille, D.; Farilla, A.; Fidecaro, F.; Gu, S. H.; Guo, Y. N.; Izen, J. M.; Jared, R. C.; Kilgore, W.; Lehraus, I.; Love, J. J.; Maas, P.; Marrocchesi, P. S.; Matthewson, R.; May, J.; Mermikides, M.; Milotti, E.; Minten, A.; Muller, D.; Price, M. J.; Richstein, J.; Richter, R.; Rolandi, L.; Sanguinetti, G.; Schlatter, D.; Settles, R.; Sinnis, G.; Stefanini, G.; Stierlin, U.; Takashima, M.; Tejessy, W.; Thomas, J.; Vayaki, A.; Wear, J.; Wicklund, E.; Witzeling, W.; Wu, S. L.; Wu, W. M.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 252, No. 2-3, 01.12.1986, p. 403-406.

Research output: Contribution to journalArticle

Amendolia, SR, Binder, M, Blum, W, Bykhovsky, M, Caldwell, A, Cherney, MG, Cowen, DF, Demille, D, Farilla, A, Fidecaro, F, Gu, SH, Guo, YN, Izen, JM, Jared, RC, Kilgore, W, Lehraus, I, Love, JJ, Maas, P, Marrocchesi, PS, Matthewson, R, May, J, Mermikides, M, Milotti, E, Minten, A, Muller, D, Price, MJ, Richstein, J, Richter, R, Rolandi, L, Sanguinetti, G, Schlatter, D, Settles, R, Sinnis, G, Stefanini, G, Stierlin, U, Takashima, M, Tejessy, W, Thomas, J, Vayaki, A, Wear, J, Wicklund, E, Witzeling, W, Wu, SL & Wu, WM 1986, 'Gating in the ALEPH time projection chamber', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 252, no. 2-3, pp. 403-406. https://doi.org/10.1016/0168-9002(86)91213-1
Amendolia, S. R. ; Binder, M. ; Blum, W. ; Bykhovsky, M. ; Caldwell, A. ; Cherney, Michael G. ; Cowen, D. F. ; Demille, D. ; Farilla, A. ; Fidecaro, F. ; Gu, S. H. ; Guo, Y. N. ; Izen, J. M. ; Jared, R. C. ; Kilgore, W. ; Lehraus, I. ; Love, J. J. ; Maas, P. ; Marrocchesi, P. S. ; Matthewson, R. ; May, J. ; Mermikides, M. ; Milotti, E. ; Minten, A. ; Muller, D. ; Price, M. J. ; Richstein, J. ; Richter, R. ; Rolandi, L. ; Sanguinetti, G. ; Schlatter, D. ; Settles, R. ; Sinnis, G. ; Stefanini, G. ; Stierlin, U. ; Takashima, M. ; Tejessy, W. ; Thomas, J. ; Vayaki, A. ; Wear, J. ; Wicklund, E. ; Witzeling, W. ; Wu, S. L. ; Wu, W. M. / Gating in the ALEPH time projection chamber. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 1986 ; Vol. 252, No. 2-3. pp. 403-406.
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abstract = "The ALEPH TPC at LEP will use a gating grid to prevent distortions caused by space charge buildup in its 2.2 m drift region. Sets of measurements have demonstrated the feasibility of a {"}synchronous ion trapping{"} mode of gating, which reduces the positive ion flux through the grid by more than two orders of magnitude. A novel mode of gating will be discussed which would permit static operation of the gate, thereby avoiding the complexity of switching between the open and closed states of the gate. This mode would rely on the dissimilar gate penetration properties of electrons and ions in the presence of a magnetic field, and it may also provide a way to partially compensate for the E × B effect at the sense wires. A combination of these different modes is proposed for the ALEPH TPC.",
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T1 - Gating in the ALEPH time projection chamber

AU - Amendolia, S. R.

AU - Binder, M.

AU - Blum, W.

AU - Bykhovsky, M.

AU - Caldwell, A.

AU - Cherney, Michael G.

AU - Cowen, D. F.

AU - Demille, D.

AU - Farilla, A.

AU - Fidecaro, F.

AU - Gu, S. H.

AU - Guo, Y. N.

AU - Izen, J. M.

AU - Jared, R. C.

AU - Kilgore, W.

AU - Lehraus, I.

AU - Love, J. J.

AU - Maas, P.

AU - Marrocchesi, P. S.

AU - Matthewson, R.

AU - May, J.

AU - Mermikides, M.

AU - Milotti, E.

AU - Minten, A.

AU - Muller, D.

AU - Price, M. J.

AU - Richstein, J.

AU - Richter, R.

AU - Rolandi, L.

AU - Sanguinetti, G.

AU - Schlatter, D.

AU - Settles, R.

AU - Sinnis, G.

AU - Stefanini, G.

AU - Stierlin, U.

AU - Takashima, M.

AU - Tejessy, W.

AU - Thomas, J.

AU - Vayaki, A.

AU - Wear, J.

AU - Wicklund, E.

AU - Witzeling, W.

AU - Wu, S. L.

AU - Wu, W. M.

PY - 1986/12/1

Y1 - 1986/12/1

N2 - The ALEPH TPC at LEP will use a gating grid to prevent distortions caused by space charge buildup in its 2.2 m drift region. Sets of measurements have demonstrated the feasibility of a "synchronous ion trapping" mode of gating, which reduces the positive ion flux through the grid by more than two orders of magnitude. A novel mode of gating will be discussed which would permit static operation of the gate, thereby avoiding the complexity of switching between the open and closed states of the gate. This mode would rely on the dissimilar gate penetration properties of electrons and ions in the presence of a magnetic field, and it may also provide a way to partially compensate for the E × B effect at the sense wires. A combination of these different modes is proposed for the ALEPH TPC.

AB - The ALEPH TPC at LEP will use a gating grid to prevent distortions caused by space charge buildup in its 2.2 m drift region. Sets of measurements have demonstrated the feasibility of a "synchronous ion trapping" mode of gating, which reduces the positive ion flux through the grid by more than two orders of magnitude. A novel mode of gating will be discussed which would permit static operation of the gate, thereby avoiding the complexity of switching between the open and closed states of the gate. This mode would rely on the dissimilar gate penetration properties of electrons and ions in the presence of a magnetic field, and it may also provide a way to partially compensate for the E × B effect at the sense wires. A combination of these different modes is proposed for the ALEPH TPC.

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