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Lifetimes from the Doppler shift attenuation method using high velocity recoils from the /sup 4/He(/sup 35/Cl, p)/sup 38/Ar reaction

Journal Article · · Phys. Rev., C; (United States)

The inverse reaction /sup 4/He(/sup 35/Cl, p)/sup 38/Ar has been used to measure the mean lifetime of the 2.168 MeV, first excited state of /sup 38/Ar in six stopping materials. Analysis of the Doppler broadened ..gamma..-ray line shapes using scaled experimental stopping powers yielded lifetime values, in ps (for stopping material), of 0.68 +- 0.08 (Ti), 0.68 +- 0.08 (Fe), 0.72 +- 0.08 (Ni), 0.67 +- 0.08 (Cu), 0.65 +- 0.07 (Ag), and 0.67 +- 0.07 (Au) with an average value of 0.68 +- 0.03 ps. A comparison of these lifetime values with those derived using the stopping power tabulation of Northcliffe and Schilling is also presented. (AIP)

Research Organization:
Chalk River Nuclear Laboratories, Atomic Energy of Canada Limited, Chalk River, Ontario, Canada K0J 1J0
OSTI ID:
7264980
Journal Information:
Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 14:2; ISSN PRVCA
Country of Publication:
United States
Language:
English