In-source laser spectroscopy developments at TRILIS-towards spectroscopy on actinium and scandium

被引：27

作者：

Raeder, Sebastian ^{[1
]}

Dombsky, Marik ^{[1
]}

Heggen, Henning ^{[1
]}

Lassen, Jens ^{[1
]}

Quenzel, Thomas ^{[1
]}

Sjoedin, Marica ^{[2
]}

Teigelhoefer, Andrea ^{[1
]}

Wendt, Klaus ^{[3
]}

机构：

[1] TRIUMF, Canadas Natl Lab Nucl & Particle Phys, Vancouver, BC V6T 2A3, Canada

[2] GANIL, F-14076 Caen, France

[3] Johannes Gutenberg Univ Mainz, Inst Phys, D-55128 Mainz, Germany

来源：

HYPERFINE INTERACTIONS | 2013年 / 216卷 / 1-3期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Resonance ionization; RILIS; In-source spectroscopy; Scandium; Actinium; ION-SOURCE; SCHEME; TRIUMF; GA;

D O I：

10.1007/s10751-013-0832-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Resonance Ionization Laser Ion Sources (RILIS) have become a versatile tool for production and study of exotic nuclides at Isotope Separator On-Line (ISOL) facilities such as ISAC at TRIUMF. The recent development and addition of a grating tuned spectroscopy laser to the TRIUMF RILIS solid state laser system allows for wide range spectral scans to investigate atomic structures on short lived isotopes, e.g., those from the element actinium, produced in uranium targets at ISAC. In addition, development of new and improved laser ionization schemes for rare isotope production at ISAC is ongoing. Here spectroscopic studies on bound states, Rydberg states and autoionizing (AI) resonances on scandium using the existing off-line capabilities are reported. These results allowed to identify a suitable ionization scheme for scandium via excitation into an autoionizing state at 58,104 cm (-aEuro parts per thousand 1) which has subsequently been used for ionization of on-line produced exotic scandium isotopes.

引用

页码：33 / 39

页数：7

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