RHIC detector beam-pipe pressures in time [electronic resource].
- Published:
- Washington, D.C. : United States. Dept. of Energy, 1993.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description:
- 8 pages : digital, PDF file
- Additional Creators:
- Brookhaven National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Summary:
- The pressures in baked an unbaked experimental beam-pipes are calculated as a function of time. These results exclude gas impact desorption effects stemming from, for example, species created by the colliding beams. Three general cases have been calculated: Case {number_sign}1: an unbaked system cryopumped by the 4.2°K apertures of the DO magnets; Case {number_sign}4: an unbaked system pumped by the 4.2°K apertures of the DO magnets, and with a 10,000 L/sec LHe cryopump located proximate to the DX magnets in the DX to D0 beam pipes; Case {number_sign}6: baked beam pipes pumped by the 4.2°K apertures of the D0 magnets and sputter-ion pumps (i.e., SIPs), with non-evaporable getters (i.e., NEGs), bracketing the experimental beam-pipes. The infinite combinations of non-simultaneous system pumpdowns have been excluded as they are impossible to enforce or predict in the heat of operation.
- Report Numbers:
- E 1.99:bnl--48660
E 1.99: ad/rhic--118
ad/rhic--118
bnl--48660 - Subject(s):
- Other Subject(s):
- Note:
- Published through SciTech Connect.
02/14/1993.
"bnl--48660"
" ad/rhic--118"
"DE93010938"
Welch, K.M. - Type of Report and Period Covered Note:
- Topical; 02/01/1993 - 02/01/1993
- Funding Information:
- AC02-76CH00016
View MARC record | catkey: 14400845