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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Dortwegt, R. Benaroya, R. |
| Copyright Year | 1993 |
| Description | Author affiliation: Adv. Photon Source, Argonne Nat. Lab., IL, USA (Dortwegt, R.; Benaroya, R.) |
| Abstract | A pair of distributed nonevaporable getter (NeG) strip assemblies is installed in each of 236 aluminum vacuum chambers of the 1104-m storage ring of the Advanced Photon Source. Distributed pumping is provided to remove most of the gas resulting from photon-stimulated desorption occurring along the outer walls of the chambers. This is an efficient way of pumping because conductance is limited along the beam axis. The St-707 NeG strips are conditioned at 450/spl deg/C for 45 min. with 42 A. Base pressures obtained are as low as 4/spl times/10/sup -11/ Torr. The NeG strip assemblies am supported by a series of electrically isolated, 125-mm-long, interlocking stainless steel carriers. These unique interlocking carrier elements provide flexibility along the vacuum chamber curvature (r=38.96 m) and permit removal and installation of assemblies with as little as 150 mm external clearance between adjacent chambers. |
| Starting Page | 3857 |
| Ending Page | 3859 |
| File Size | 334420 |
| Page Count | 3 |
| File Format | |
| ISBN | 0780312031 |
| DOI | 10.1109/PAC.1993.309791 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1993-05-17 |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Gettering Storage rings Strips Aluminum Structural beams Assembly Strontium Steel Pumps Testing |
| Content Type | Text |
| Resource Type | Article |
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