Heavy ion storage ring for atomic physics vacuum test stand for pressures of 10-12Torr

J. W. Johnson; W. H. Atkins; D. T. Dowling; J. W. McConnell; W. T. Milner; D. K. Olsen

doi:10.1116/1.575914

Heavy ion storage ring for atomic physics vacuum test stand for pressures of 10-12Torr

J. W. Johnson, W. H. Atkins, D. T. Dowling, J. W. McConnell, W. T. Milner, D. K. Olsen

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

HISTRAP (heavy ion storage ring for atomic physics) is a proposed synchrotron/cooler/storage ring accelerator optimized for advanced atomic physics research. The ring has a circumference of 46.8 m, a bore diameter of — 15 cm, and requires a vacuum of 10-12Torr to decelerate highly charged, very heavy ions down to low energies. To be able to test components and procedures to achieve this pressure, a test stand approximately modeling 1/16 of the ring vacuum chamber has been built. The 3.5-m-long test stand has been fabricated from 10-cm-diam components, with 316LN stainless-steel flanges. Prior to assembly, these components were vacuum fired at 950 °C at a pressure of 10-4Torr. The test stand is bakable in situ at 300 °C. Pumping is achieved with two 750 1/s titanium sublimator pumps and one 60 1/s ion pump. Pressure is measured with two extractor ion gauges and a 10-4partial pressure residual gas analyser. The roughing for the test stand consists of cryosorption pumps followed by a cryopump. A pressure of 4 X 10-12Torr has been achieved.

Original language	English
Pages (from-to)	2430-2434
Number of pages	5
Journal	Journal of Vacuum Science and Technology, Part A: Vacuum, Surfaces and Films
Volume	7
Issue number	3
DOIs	https://doi.org/10.1116/1.575914
State	Published - May 1989

Access to Document

10.1116/1.575914

Cite this

@article{d3d4d567dd2e40c49b6116908e1a59dd,

title = "Heavy ion storage ring for atomic physics vacuum test stand for pressures of 10-12Torr",

abstract = "HISTRAP (heavy ion storage ring for atomic physics) is a proposed synchrotron/cooler/storage ring accelerator optimized for advanced atomic physics research. The ring has a circumference of 46.8 m, a bore diameter of — 15 cm, and requires a vacuum of 10-12Torr to decelerate highly charged, very heavy ions down to low energies. To be able to test components and procedures to achieve this pressure, a test stand approximately modeling 1/16 of the ring vacuum chamber has been built. The 3.5-m-long test stand has been fabricated from 10-cm-diam components, with 316LN stainless-steel flanges. Prior to assembly, these components were vacuum fired at 950 °C at a pressure of 10-4Torr. The test stand is bakable in situ at 300 °C. Pumping is achieved with two 750 1/s titanium sublimator pumps and one 60 1/s ion pump. Pressure is measured with two extractor ion gauges and a 10-4partial pressure residual gas analyser. The roughing for the test stand consists of cryosorption pumps followed by a cryopump. A pressure of 4 X 10-12Torr has been achieved.",

author = "Johnson, {J. W.} and Atkins, {W. H.} and Dowling, {D. T.} and McConnell, {J. W.} and Milner, {W. T.} and Olsen, {D. K.}",

year = "1989",

month = may,

doi = "10.1116/1.575914",

language = "English",

volume = "7",

pages = "2430--2434",

journal = "Journal of Vacuum Science and Technology, Part A: Vacuum, Surfaces and Films",

issn = "0734-2101",

publisher = "American Vacuum Society",

number = "3",

}

TY - JOUR

T1 - Heavy ion storage ring for atomic physics vacuum test stand for pressures of 10-12Torr

AU - Johnson, J. W.

AU - Atkins, W. H.

AU - Dowling, D. T.

AU - McConnell, J. W.

AU - Milner, W. T.

AU - Olsen, D. K.

PY - 1989/5

Y1 - 1989/5

N2 - HISTRAP (heavy ion storage ring for atomic physics) is a proposed synchrotron/cooler/storage ring accelerator optimized for advanced atomic physics research. The ring has a circumference of 46.8 m, a bore diameter of — 15 cm, and requires a vacuum of 10-12Torr to decelerate highly charged, very heavy ions down to low energies. To be able to test components and procedures to achieve this pressure, a test stand approximately modeling 1/16 of the ring vacuum chamber has been built. The 3.5-m-long test stand has been fabricated from 10-cm-diam components, with 316LN stainless-steel flanges. Prior to assembly, these components were vacuum fired at 950 °C at a pressure of 10-4Torr. The test stand is bakable in situ at 300 °C. Pumping is achieved with two 750 1/s titanium sublimator pumps and one 60 1/s ion pump. Pressure is measured with two extractor ion gauges and a 10-4partial pressure residual gas analyser. The roughing for the test stand consists of cryosorption pumps followed by a cryopump. A pressure of 4 X 10-12Torr has been achieved.

AB - HISTRAP (heavy ion storage ring for atomic physics) is a proposed synchrotron/cooler/storage ring accelerator optimized for advanced atomic physics research. The ring has a circumference of 46.8 m, a bore diameter of — 15 cm, and requires a vacuum of 10-12Torr to decelerate highly charged, very heavy ions down to low energies. To be able to test components and procedures to achieve this pressure, a test stand approximately modeling 1/16 of the ring vacuum chamber has been built. The 3.5-m-long test stand has been fabricated from 10-cm-diam components, with 316LN stainless-steel flanges. Prior to assembly, these components were vacuum fired at 950 °C at a pressure of 10-4Torr. The test stand is bakable in situ at 300 °C. Pumping is achieved with two 750 1/s titanium sublimator pumps and one 60 1/s ion pump. Pressure is measured with two extractor ion gauges and a 10-4partial pressure residual gas analyser. The roughing for the test stand consists of cryosorption pumps followed by a cryopump. A pressure of 4 X 10-12Torr has been achieved.

UR - http://www.scopus.com/inward/record.url?scp=84914312744&partnerID=8YFLogxK

U2 - 10.1116/1.575914

DO - 10.1116/1.575914

M3 - Article

AN - SCOPUS:84914312744

SN - 0734-2101

VL - 7

SP - 2430

EP - 2434

JO - Journal of Vacuum Science and Technology, Part A: Vacuum, Surfaces and Films

JF - Journal of Vacuum Science and Technology, Part A: Vacuum, Surfaces and Films

IS - 3

ER -

Heavy ion storage ring for atomic physics vacuum test stand for pressures of 10-12Torr

Abstract

Access to Document

Other files and links

Fingerprint

Cite this