RESONANCE PARAMETERS FOR THE 8-ev LEVEL OF Sm¹⁵²

Journal Article · Tue Aug 01 00:00:00 EDT 1961 · Canadian Journal of Physics

DOI:https://doi.org/10.1139/p61-134· OSTI ID:4841404

Chrien, R. E.

The joint BNL--AECL Fast Chopper Facility operating at the NRU reactor at Chalk River was used to determine the resonance parameters of the 8-ev level of Sm¹⁵². Using a resonance shape analysis method, the following parameters were obtained: EO = 8.02 plus or minus 0.02 ev, GAMMA = 205 plus or minus 15 milli-ev, and GAMMA _n = 79 plus or minus 3 milli-ev. With these values, a reduced resonance capture integral of 3090 plus or minus 220 barns is calculated, in agreement with recent cadmium ratio measurements. (auth) Samarium-153 decay was measured by irradiation of superpure aluminum foil with Sm₂O₉ baked on in the ZEEP reactor or in the thermal column of the NRU reactor. The total error was calculated as approximately -0.2% giving a value of 46.2 plus or minus 0.1 hours. This is 2% less than the value of Cork, et al., Phys. Rev. 110, p. 526(1958). (L.N.N.)

• Research Organization: Brookhaven National Lab., Upton, N.Y.
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-028488
• OSTI ID: 4841404
• Journal Information: Canadian Journal of Physics, Journal Name: Canadian Journal of Physics Journal Issue: 8 Vol. 39; ISSN 0008-4204
• Publisher: Canadian Science Publishing
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CADMIUM
CAPTURE
CHOPPERS
CROSS SECTIONS
ENERGY LEVELS
EPITHERMAL NEUTRONS
EV RANGE
MEASURED VALUES
NEUTRON SPECTROMETERS
NRU
PHYSICS
PULSE GENERATORS
REACTORS
RESONANCE
SAMARIUM 152