A new matrix for the ``ageless`` 21.6-keV {sup 151}Eu nuclear gamma ray Moessbauer source
- Nassau Community College, Garden City, NY (United States). Dept. of Chemistry
- Brookhaven National Lab., Upton, NY (United States)
- North Carolina State Univ., Raleigh, NC (United States)
- Howard Univ., Washington, DC (United States). Dept. of Physics
- Ranger Scientific, Inc., Burleson, TX (United States)
- Hebrew Univ., Jerusalem (Israel). Racah Inst. of Physics
Moessbauer spectroscopy has been used over the past two decades to advance the study of europium compounds and alloys, primarily utilizing the 21.6-kev gamma ray emitted from beta decaying {sup 151}Sm. This isotope, which has a 87 year half-life, has been used in either a samarium fluoride (SmF{sup 3}) or samarium oxide (Sm{sub 2}O{sub 3}) matrix. We now report a study involving, europium oxalate decahydrate (Eu2(C{sub 2}O{sub 4}){center_dot}10H{sub 2}O), europium fluoride EuF{sub 3} and EuBe{sub l3} as absorbers at known thicknesses. Our data supports the view that Sm{sub 2}(C{sub 2}O{sub 4}){sub 3}{center_dot}H{sub 2}O will provide a better source matrix than either the fluoride or oxide due to the narrower linewidth and comparable ``f`` factor to {sup 151}SmF{sub 3}.
- Research Organization:
- Brookhaven National Lab., Upton, NY (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 10147280
- Report Number(s):
- BNL-48628; CONF-930195-1; ON: DE93009795
- Resource Relation:
- Conference: 2. Nassau Moessbauer conference,Garden City, NY (United States),8 Jan 1993; Other Information: PBD: [1993]
- Country of Publication:
- United States
- Language:
- English
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