Ultra Trace Determination Scheme for²⁶Al by High-Resolution Resonance Ionization Mass Spectrometry using a Pulsed Ti:Sapphire Laser

Abstract

We propose an ultra trace analysis approach for 26 Al by high-resolution Resonance Ionization Mass Spectrometry (RIMS) using a pulsed narrow band-width Ti:Sapphire laser. For ensuring efficient ionization and high isotopic selectivity in RIMS of Al, we developed an injection seeded pulsed Ti:Sapphire laser with high repetition rate operation at up to 10 kHz. The laser produced an output power of 2 W and a spectral band-width of $20 MHz with a repetition rate of 7 kHz. A first demonstration of its performance was done by detecting stable 27 Al using RIMS.

On the performance of wavelength meters: Part 1—consequences for medium-to-high-resolution laser spectroscopy

“…= 11.620(17), respectively, excluding any hyperfine anomaly within this precision. An isotope shift δν 63−65 of 573.7 (18) MHz can also be extracted from the data, also in agreement with literature [34,35]. In case no spline correction were applied, an additional non-stochastic systematic error would have to be introduced to the resulting observables, a Cu,g.s.…”

“…The laser ion source here is based on high-repetition rate pulsed Ti:sapphire lasers specifically developed for this application [16]. While these lasers provide high output power required for efficient ionization, a complementary cw laser system provides the stability and narrow linewidth necessary for ultratrace analysis applications [17,18] and high-resolution spectroscopy [19][20][21]. The benefits of both systems can be combined by using a cw external cavity diode laser (ECDL) as master laser for seeding of a pulsed injectionlocked Ti:sapphire laser (slave).…”

Characterization of a pulsed injection-locked Ti:sapphire laser and its application to high resolution resonance ionization spectroscopy of copper

“…Electrical noise due to the switches caused little detriment to the locking performance. A schematic of the switched amplifier circuit design developed at the University of Mainz can be found in [20][21][22] with a more recent version of the design available on request.…”

Properties of a Rubidium Isotope Ion Beam Extracted from a Laser Ion Source

“…10,11) On the other hand, the laser separation technique based on atomic excitation has some advantages, namely, the potentially high throughput leading to an intense pulse beam suitable for ion beam experiments, 3) controllability of the tunable laser, a possibility of multiple isotope production or blending, and competitive cost. Although the well-establish laser ion source, i.e., an isotope separator on-line (ISOL) facility, [12][13][14][15][16] is used in the same technique, its features are different because it is principally designed to produce, detect, and analyze rare radioactive isotopes from hot cavities.…”