The Mark III vertex chamber

J. Adler; T. Bolton; K. Bunnell; R. Cassell; E. Cheu; R. Eisele; T. Freese; C. Grab; G. Mazaheri; R. Mir; A. Odian; D. Pitman; W. Stockhausen; W. Toki; F. Villa; W. Wadley; S. Wasserbaech; W. Wisniewski

doi:10.1016/0168-9002(89)90614-1

The Mark III vertex chamber

J. Adler, T. Bolton, K. Bunnell, R. Cassell, E. Cheu, R. Eisele, T. Freese, C. Grab, G. Mazaheri, R. Mir, A. Odian, D. Pitman, W. Stockhausen, W. Toki, F. Villa, W. Wadley, S. Wasserbaech, W. Wisniewski

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24 Scopus citations

Abstract

We have constructed and installed a pressurized straw vertex chamber in the Mark III experiment at the SLAC e⁺e^- storage ring SPEAR. The chamber consists of 12 concentric layers of straws, arrayed at radii between 5.4 cm and 13.0 cm from the interaction point. There are a total of 640 straws, each 8 mm in diameter and 84 cm long. We obtain an overall spatial resolution of 49 μm for argon-ethane ( 50% 50%) at 3 atm absolute using a cosmic ray data sample. The effects of gases on various chamber materials have been investigated. Chamber lifetime studies have been performed. A prototype chamber was used to study the resolution obtained with various gases.

Original language	English (US)
Pages (from-to)	42-52
Number of pages	11
Journal	Nuclear Inst. and Methods in Physics Research, A
Volume	276
Issue number	1-2
DOIs	https://doi.org/10.1016/0168-9002(89)90614-1
State	Published - Mar 15 1989
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/0168-9002(89)90614-1

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Adler, J., Bolton, T., Bunnell, K., Cassell, R., Cheu, E., Eisele, R., Freese, T., Grab, C., Mazaheri, G., Mir, R., Odian, A., Pitman, D., Stockhausen, W., Toki, W., Villa, F., Wadley, W., Wasserbaech, S., & Wisniewski, W. (1989). The Mark III vertex chamber. Nuclear Inst. and Methods in Physics Research, A, 276(1-2), 42-52. https://doi.org/10.1016/0168-9002(89)90614-1

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title = "The Mark III vertex chamber",

abstract = "We have constructed and installed a pressurized straw vertex chamber in the Mark III experiment at the SLAC e+e- storage ring SPEAR. The chamber consists of 12 concentric layers of straws, arrayed at radii between 5.4 cm and 13.0 cm from the interaction point. There are a total of 640 straws, each 8 mm in diameter and 84 cm long. We obtain an overall spatial resolution of 49 μm for argon-ethane ( 50% 50%) at 3 atm absolute using a cosmic ray data sample. The effects of gases on various chamber materials have been investigated. Chamber lifetime studies have been performed. A prototype chamber was used to study the resolution obtained with various gases.",

author = "J. Adler and T. Bolton and K. Bunnell and R. Cassell and E. Cheu and R. Eisele and T. Freese and C. Grab and G. Mazaheri and R. Mir and A. Odian and D. Pitman and W. Stockhausen and W. Toki and F. Villa and W. Wadley and S. Wasserbaech and W. Wisniewski",

note = "Funding Information: The Mark III experiment, operating at the SLAC e +e-storage ring SPEAR, has been recently outfitted with a twelve-layer pressurized straw-type vertex cham- * This work was supported in part by the Department of Energy, under contracts DE-AC03-76SF00515, DE-AC02-76ER01195, DE-AC03-81ER40050, DE-AM03-76SF0034, and by the National Science Foundation .",

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doi = "10.1016/0168-9002(89)90614-1",

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T1 - The Mark III vertex chamber

AU - Adler, J.

AU - Bolton, T.

AU - Bunnell, K.

AU - Cassell, R.

AU - Cheu, E.

AU - Eisele, R.

AU - Freese, T.

AU - Grab, C.

AU - Mazaheri, G.

AU - Mir, R.

AU - Odian, A.

AU - Pitman, D.

AU - Stockhausen, W.

AU - Toki, W.

AU - Villa, F.

AU - Wadley, W.

AU - Wasserbaech, S.

AU - Wisniewski, W.

N1 - Funding Information: The Mark III experiment, operating at the SLAC e +e-storage ring SPEAR, has been recently outfitted with a twelve-layer pressurized straw-type vertex cham- * This work was supported in part by the Department of Energy, under contracts DE-AC03-76SF00515, DE-AC02-76ER01195, DE-AC03-81ER40050, DE-AM03-76SF0034, and by the National Science Foundation .

PY - 1989/3/15

Y1 - 1989/3/15

N2 - We have constructed and installed a pressurized straw vertex chamber in the Mark III experiment at the SLAC e+e- storage ring SPEAR. The chamber consists of 12 concentric layers of straws, arrayed at radii between 5.4 cm and 13.0 cm from the interaction point. There are a total of 640 straws, each 8 mm in diameter and 84 cm long. We obtain an overall spatial resolution of 49 μm for argon-ethane ( 50% 50%) at 3 atm absolute using a cosmic ray data sample. The effects of gases on various chamber materials have been investigated. Chamber lifetime studies have been performed. A prototype chamber was used to study the resolution obtained with various gases.

AB - We have constructed and installed a pressurized straw vertex chamber in the Mark III experiment at the SLAC e+e- storage ring SPEAR. The chamber consists of 12 concentric layers of straws, arrayed at radii between 5.4 cm and 13.0 cm from the interaction point. There are a total of 640 straws, each 8 mm in diameter and 84 cm long. We obtain an overall spatial resolution of 49 μm for argon-ethane ( 50% 50%) at 3 atm absolute using a cosmic ray data sample. The effects of gases on various chamber materials have been investigated. Chamber lifetime studies have been performed. A prototype chamber was used to study the resolution obtained with various gases.

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The Mark III vertex chamber

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