Investigation of synchrotron radiation-induced photodesorption in cryosorbing quasiclosed geometry

Journal Article · Thu Sep 01 00:00:00 EDT 1994 · Journal of Vacuum Science and Technology, A (Vacuum, Surfaces and Films); (United States)

DOI:https://doi.org/10.1116/1.578965· OSTI ID:7196893

Anashin, V V; Malyshev, O B; Osipov, V N ^[1]; Maslennikov, I L; Turner, W C ^[2]

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1. Budker Institute of Nuclear Physics, Novosibirsk (Russian Federation)
2. Superconducting Super Collider Laboratory, Dallas, Texas 75237 (United States)

The results of 4.2-K photodesorption experiments in two quasiclosed geometries are reported, (1) a simple tube and (2) a tube with a coaxial perforated liner. These experiments were designed to measure separately the desorption coefficients of tightly bound and physisorbed molecules. The results are important for the beam tube vacuum of the next generation of superconducting proton colliders that have been contemplated---the 20-TeV Superconducting Super Collider in the United States and the 7.3-TeV Large Hadron Collider at CERN.

• DOE Contract Number: AC35-89ER40486
• OSTI ID: 7196893
• Journal Information: Journal of Vacuum Science and Technology, A (Vacuum, Surfaces and Films); (United States), Journal Name: Journal of Vacuum Science and Technology, A (Vacuum, Surfaces and Films); (United States) Vol. 12:5; ISSN 0734-2101; ISSN JVTAD6
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430400 -- Particle Accelerators-- Storage Rings
665300* -- Interactions Between Beams & Condensed Matter-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BREMSSTRAHLUNG
CHEMICAL BONDS
DEGASSING
DESORPTION
ELECTROMAGNETIC RADIATION
RADIATIONS
SORPTION
STORAGE RINGS
SUPERCONDUCTING SUPER COLLIDER
SYNCHROTRON RADIATION
TEMPERATURE RANGE
TEMPERATURE RANGE 0000-0013 K
TUBES
VACUUM SYSTEMS