²⁰⁷Pb (n, n') ²⁰⁷Pbm And ²⁰⁸Pb (n, 2n) ²⁰⁷Pbm Cross Sections

Author

Edward Raymond Shunk

Publication Date

5-27-1967

Abstract

The cross sections for the production of the ²⁰⁷Pb^m state from ²⁰⁷Pb(n, n') and ²⁰⁸Pb(n, 2n) have been measured from the threshold through 14 MeV by observing the 1 .064 MeV gamma ray in the decay of ²⁰⁷Pb^m (T _½ = 0.818 ± 0.004 sec) with a 3 in. x 3 in. NaI (T1) detector. Separated lead isotopes were irradiated for 4 sec and pneumatically transported to the detector. A 400-channel analyzer a used a time analyzer to record counts from neutron monitor during the irradiation and from the detector after the irradiation. These data were processed by computer to obtain the half life and the cross sections. The cross section are accurate to within ± 8% except near the threshold.

Degree Name

Physics

Level of Degree

Masters

Department Name

Physics & Astronomy

First Committee Member (Chair)

Christopher Pratt Leavitt

Second Committee Member

Philip Montgomery Campbell

Third Committee Member

John Lee Howarth

Fourth Committee Member

Anthony Hemmendinger

Language

English

Document Type

Thesis

Recommended Citation

Shunk, Edward Raymond. "²⁰⁷Pb (n, n') ²⁰⁷Pbm And ²⁰⁸Pb (n, 2n) ²⁰⁷Pbm Cross Sections." (1967). https://digitalrepository.unm.edu/phyc_etds/308