Selective suppression of negative ions by lasers

D. Berkovits; E. Boaretto; G. Hollos; W. Kutschera; R. Naaman; M. Paul; Z. Vager

doi:10.1016/0168-9002(89)91507-6

Selective suppression of negative ions by lasers

D. Berkovits, E. Boaretto, G. Hollos, W. Kutschera, R. Naaman, M. Paul, Z. Vager

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

42 Scopus citations

Abstract

A method of selective suppression of negative ions by electron photodetachment with a laser beam is investigated. The interaction of 532 nm photons from a Nd:YAG laser with negative ions of ³²S, ³⁷Cl and ⁴⁰Ca¹⁶O was studied. A strong depletion of ³²S^- and ⁴⁰Ca¹⁶O^- beam intensities, but no effect on ³⁷Cl^- ions, was observed. Photodetachment cross sections of (1.0±0.2)×10^-17 cm² and (7±3)×10^-17 cm² were measured for ³²S^- and ⁴⁰Ca¹⁶O^-, respectively. Implications for accelerator mass spectrometry measurements are discussed.

Original language	English
Pages (from-to)	663-666
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	281
Issue number	3
DOIs	https://doi.org/10.1016/0168-9002(89)91507-6
State	Published - 15 Sep 1989
Externally published	Yes

Bibliographical note

Funding Information:
We should like to thank C.W . Lineberger and P. Thieberger for providing information on photodetach- ment cross sections and the Brookhaven pulsed ion source, respectively, and G. Sprouse for discussion on laser resonant excitation . The enthusiastic support of the technical staff of the Pelletron Accelerator is gratefully acknowledged. This work was supported in part by the USA-Israel Binational Science Foundation and the U .S . Department of Energy, Nuclear Physics Division, under Contract W-31-109-ENG-38.

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title = "Selective suppression of negative ions by lasers",

abstract = "A method of selective suppression of negative ions by electron photodetachment with a laser beam is investigated. The interaction of 532 nm photons from a Nd:YAG laser with negative ions of 32S, 37Cl and 40Ca16O was studied. A strong depletion of 32S- and 40Ca16O- beam intensities, but no effect on 37Cl- ions, was observed. Photodetachment cross sections of (1.0±0.2)×10-17 cm2 and (7±3)×10-17 cm2 were measured for 32S- and 40Ca16O-, respectively. Implications for accelerator mass spectrometry measurements are discussed.",

author = "D. Berkovits and E. Boaretto and G. Hollos and W. Kutschera and R. Naaman and M. Paul and Z. Vager",

note = "Funding Information: We should like to thank C.W . Lineberger and P. Thieberger for providing information on photodetach- ment cross sections and the Brookhaven pulsed ion source, respectively, and G. Sprouse for discussion on laser resonant excitation . The enthusiastic support of the technical staff of the Pelletron Accelerator is gratefully acknowledged. This work was supported in part by the USA-Israel Binational Science Foundation and the U .S . Department of Energy, Nuclear Physics Division, under Contract W-31-109-ENG-38.",

year = "1989",

month = sep,

day = "15",

doi = "10.1016/0168-9002(89)91507-6",

language = "אנגלית",

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pages = "663--666",

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T1 - Selective suppression of negative ions by lasers

AU - Berkovits, D.

AU - Boaretto, E.

AU - Hollos, G.

AU - Kutschera, W.

AU - Naaman, R.

AU - Paul, M.

AU - Vager, Z.

N1 - Funding Information: We should like to thank C.W . Lineberger and P. Thieberger for providing information on photodetach- ment cross sections and the Brookhaven pulsed ion source, respectively, and G. Sprouse for discussion on laser resonant excitation . The enthusiastic support of the technical staff of the Pelletron Accelerator is gratefully acknowledged. This work was supported in part by the USA-Israel Binational Science Foundation and the U .S . Department of Energy, Nuclear Physics Division, under Contract W-31-109-ENG-38.

PY - 1989/9/15

Y1 - 1989/9/15

N2 - A method of selective suppression of negative ions by electron photodetachment with a laser beam is investigated. The interaction of 532 nm photons from a Nd:YAG laser with negative ions of 32S, 37Cl and 40Ca16O was studied. A strong depletion of 32S- and 40Ca16O- beam intensities, but no effect on 37Cl- ions, was observed. Photodetachment cross sections of (1.0±0.2)×10-17 cm2 and (7±3)×10-17 cm2 were measured for 32S- and 40Ca16O-, respectively. Implications for accelerator mass spectrometry measurements are discussed.

AB - A method of selective suppression of negative ions by electron photodetachment with a laser beam is investigated. The interaction of 532 nm photons from a Nd:YAG laser with negative ions of 32S, 37Cl and 40Ca16O was studied. A strong depletion of 32S- and 40Ca16O- beam intensities, but no effect on 37Cl- ions, was observed. Photodetachment cross sections of (1.0±0.2)×10-17 cm2 and (7±3)×10-17 cm2 were measured for 32S- and 40Ca16O-, respectively. Implications for accelerator mass spectrometry measurements are discussed.

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JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

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Selective suppression of negative ions by lasers

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