Selective counting of krypton atoms using resonance ionization spectroscopy

Journal Article · Thu Mar 15 04:00:00 EST 1984 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.94861· OSTI ID:5178681

Chen, C H; Kramer, S D; Allman, S L; Hurst, G S

Resonance ionization spectroscopy (RIS) was used to count 1000 individual /sup 81/Kr atoms. In the method, lasers for RIS are used to obtain atomic species (Z) selectivity and a small quadrupole mass spectrometer provides isotopic (A) selectivity. After Z and A selection the krypton ions were counted as they were implanted into a target. Basically, the method works for any isotope whether stable or unstable. However, the detection limit may depend on the isotope because of outgassing of stable atoms from the enclosure walls. For /sup 81/Kr, we show that fewer than 1000 atoms can be counted with good accuracy.

• Research Organization: Chemical Physics Section, Health and Safety Research Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5178681
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 44:6; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

440300* -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
640300 -- Atomic
Molecular & Chemical Physics
74 ATOMIC AND MOLECULAR PHYSICS
BETA DECAY RADIOISOTOPES
COUNTING TECHNIQUES
ELECTRON CAPTURE RADIOISOTOPES
EVEN-ODD NUCLEI
INTERMEDIATE MASS NUCLEI
IONIZATION
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KRYPTON 81
KRYPTON ISOTOPES
LASER SPECTROSCOPY
LASERS
MASS SPECTROMETERS
MEASURING INSTRUMENTS
NUCLEI
RADIOISOTOPES
RESONANCE
SECONDS LIVING RADIOISOTOPES
SPECTROMETERS
SPECTROSCOPY
TARGETS
YEARS LIVING RADIOISOTOPES