Shielding consideration for the SSCL experimental halls

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The Superconducting Super Collider which is being designed and built in Waxahachie, Texas consists Of series of proton accelerators, culminating in a 20 Te proton on proton collider. The collider will be in a tunnel which will be 87 km in circumference and. on average about 30 meters underground. The present design calls for two large interaction halls on the east side of the ring. The shielding for these halls is being designed for an interaction rate of 10{sup 9} Hz or 10{sup 16} interactions per year, based on 10{sup 7} seconds per operational year. SSC guidelines require that the ... continued below

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11 p.

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Bull, J.; Coyne, J.; Mokhov, N. & Stapleton, G. March 1, 1994.

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The Superconducting Super Collider which is being designed and built in Waxahachie, Texas consists Of series of proton accelerators, culminating in a 20 Te proton on proton collider. The collider will be in a tunnel which will be 87 km in circumference and. on average about 30 meters underground. The present design calls for two large interaction halls on the east side of the ring. The shielding for these halls is being designed for an interaction rate of 10{sup 9} Hz or 10{sup 16} interactions per year, based on 10{sup 7} seconds per operational year. SSC guidelines require that the shielding be designed to meet the criterion of 1mSv per year for open areas off site 2mSv per year for open areas on site, and 2mSv per year for controlled areas. Only radiation workers will be routinely allowed to work in controlled areas. It should be pointed that there is a potential for an accidental full beam loss in either of the experimental halls, and this event would consist of the loss of the full circulating beam up to 4 {times} 10{sup 14} protons. With the present design. the calculated dose equivalent for this event is about 10% of the annual dose equivalent for the normal p-p interactions, so that die accident condition does not control the shielding. If, for instance, local shielding within the experimental hall is introduced into the calculations, this could change. The shielding requirements presented here are controlled by the normal p-p interactions. Three important questions were addressed in the present calculations. They are (1) the thickness of the roof over the experimental halls, (2) the configuration of the shafts and adits which give access to the halls, and (3) the problem of ground water and air activation.

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11 p.

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INIS; OSTI as DE95011037

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  • 8. international conference on radiation shielding, Arlington, TX (United States), 24-27 Apr 1994

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  • Other: DE95011037
  • Report No.: SSCL-Preprint--558
  • Report No.: CONF-940424--38
  • Grant Number: AC35-89ER40486
  • Office of Scientific & Technical Information Report Number: 82447
  • Archival Resource Key: ark:/67531/metadc785428

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  • March 1, 1994

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  • Dec. 3, 2015, 9:30 a.m.

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  • April 29, 2016, 6:03 p.m.

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Bull, J.; Coyne, J.; Mokhov, N. & Stapleton, G. Shielding consideration for the SSCL experimental halls, article, March 1, 1994; Dallas, Texas. (digital.library.unt.edu/ark:/67531/metadc785428/: accessed October 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.