Resonance ionization of holmium for ion implantation in microcalorimeters

被引：27

作者：

Schneider, F. ^{[1
,2
,3
]}

Chrysalidis, K. ^{[1
]}

Dorrer, H. ^{[2
]}

Duellmann, Ch. E. ^{[2
,3
,4
,5
]}

Eberhardt, K. ^{[2
,3
,4
]}

Haas, R. ^{[2
]}

Kieck, T. ^{[1
]}

Mokry, C. ^{[2
]}

Naubereit, P. ^{[1
]}

Schmidt, S. ^{[1
]}

Wendt, K. ^{[1
,3
]}

机构：

[1] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany

[2] Johannes Gutenberg Univ Mainz, Inst Kernchem, Fritz Strassman Weg 2, D-55128 Mainz, Germany

[3] Johannes Gutenberg Univ Mainz, PRISMA Cluster Excellence, D-55099 Mainz, Germany

[4] Helmholtz Inst Mainz, D-55099 Mainz, Germany

[5] GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2016年 / 376卷

关键词：

Resonance ionization; Laser ion source; Radioactive ion beam; Titanium-sapphire laser; HO-163;

D O I：

10.1016/j.nimb.2015.12.012

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The determination of the electron neutrino mass by calorimetric measurement of the Ho-163 electron capture spectrum requires ultra-pure samples. Several collaborations, like ECHo or HOLMES, intend to employ microcalorimeters into which Ho-163 is implanted as an ion beam. This makes a selective arid additionally very efficient ion source for holmium mandatory. For this purpose, laser resonance ionization of stable holmium Ho-165 was studied, using a three step excitation scheme driven by pulsed Ti:sapphire lasers. Five measurements with sample sizes of 1014 and 1015 atoms were performed for the efficiency investigation. In average, an excellent ionization efficiency of 32(5) % could be shown, demonstrating the suitability for ion beam implantation. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：388 / 392

页数：5

共 15 条

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