Development of highly efficient NEG pumping system for EBIS

Kondrashev, Sergey; Beebe, E.; Coe, B.; Ritter, J.; Rodowicz, T.; Schoepfer, R.

doi:10.1063/1.5127751

Title: Development of highly efficient NEG pumping system for EBIS

Abstract

Ultrahigh vacuum inside the ion trap volume is crucial for stable and reliable operation of an Electron Beam Ion Source (EBIS). We have developed and tested a compact linear pumping system based on the ZAO Non-Evaporable Getter (NEG) module with high pumping speed and enhanced sorption capacity for all active gases. Due to its minimal transverse dimensions, the system can be mounted adjacent to the ion trap inside a superconducting solenoid bore and will provide a pumping speed of the order of 1000 l/s for all active gases in that area. An externally supplied current (100 A DC) is used to heat the ZAO NEG up to 650 °C for more than 1 h, which is required for pump activation and/or reactivation cycles. The pumping system is being developed for use in the Extended EBIS Upgrade which is presently in progress at BNL. In conclusion, the design of the system and results of multiple tests are presented and discussed.

Authors:

^[1]; Beebe, E. ^[1]; Coe, B. ^[1]; Ritter, J. ^[1]; Rodowicz, T. ^[1]; Schoepfer, R. ^[1]

Brookhaven National Lab. (BNL), Upton, NY (United States)

Publication Date:: Mon Nov 11 00:00:00 EST 2019

Research Org.:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP)

OSTI Identifier:: 1575914

Alternate Identifier(s):: OSTI ID: 1573852

Report Number(s):: BNL-211631-2019-COPA
Journal ID: ISSN 0034-6748; TRN: US2100282

Grant/Contract Number:: SC0012704

Resource Type:: Accepted Manuscript

Journal Name:: Review of Scientific Instruments

Additional Journal Information:: Journal Volume: 90; Journal Issue: 11; Conference: 18th International Conference on Ion Source (ICIS2019), Lanzhou (China), 1-6 Sep 2019; Journal ID: ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 43 PARTICLE ACCELERATORS

Citation Formats


                    Kondrashev, Sergey, Beebe, E., Coe, B., Ritter, J., Rodowicz, T., and Schoepfer, R. Development of highly efficient NEG pumping system for EBIS.  United States: N. p., 2019. 
Web.  doi:10.1063/1.5127751.

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                    Kondrashev, Sergey, Beebe, E., Coe, B., Ritter, J., Rodowicz, T., & Schoepfer, R. Development of highly efficient NEG pumping system for EBIS.  United States.  https://doi.org/10.1063/1.5127751

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                    Kondrashev, Sergey, Beebe, E., Coe, B., Ritter, J., Rodowicz, T., and Schoepfer, R. Mon .  
"Development of highly efficient NEG pumping system for EBIS".  United States.  https://doi.org/10.1063/1.5127751.  https://www.osti.gov/servlets/purl/1575914.

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@article{osti_1575914,

  title        = {Development of highly efficient NEG pumping system for EBIS},

  author       = {Kondrashev, Sergey and Beebe, E. and Coe, B. and Ritter, J. and Rodowicz, T. and Schoepfer, R.},

  abstractNote = {Ultrahigh vacuum inside the ion trap volume is crucial for stable and reliable operation of an Electron Beam Ion Source (EBIS). We have developed and tested a compact linear pumping system based on the ZAO Non-Evaporable Getter (NEG) module with high pumping speed and enhanced sorption capacity for all active gases. Due to its minimal transverse dimensions, the system can be mounted adjacent to the ion trap inside a superconducting solenoid bore and will provide a pumping speed of the order of 1000 l/s for all active gases in that area. An externally supplied current (100 A DC) is used to heat the ZAO NEG up to 650 °C for more than 1 h, which is required for pump activation and/or reactivation cycles. The pumping system is being developed for use in the Extended EBIS Upgrade which is presently in progress at BNL. In conclusion, the design of the system and results of multiple tests are presented and discussed.},

  doi          = {10.1063/1.5127751},

  journal      = {Review of Scientific Instruments},

  number       = 11,

  volume       = 90,

  place        = {United States},

  year         = {Mon Nov 11 00:00:00 EST 2019},

  month        = {Mon Nov 11 00:00:00 EST 2019}

}

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Works referenced in this record:

Reliable operation of the Brookhaven EBIS for highly charged ion production for RHIC and NSRL
conference, January 2015

Beebe, E.; Alessi, J.; Binello, S.
PROCEEDINGS OF THE XII INTERNATIONAL SYMPOSIUM ON ELECTRON BEAM ION SOURCES AND TRAPS, AIP Conference Proceedings
DOI: 10.1063/1.4905394

EBIS charge breeder for CARIBU
journal, February 2014

Kondrashev, S.; Barcikowski, A.; Dickerson, C.
Review of Scientific Instruments, Vol. 85, Issue 2
DOI: 10.1063/1.4824645

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