| EPSRC Reference: |
EP/C003047/1 |
| Title: |
Study of two-photon emission in 72Ge |
| Principal Investigator: |
Herzberg, Professor RKM |
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| Department: |
Physics |
| Organisation: |
University of Liverpool |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 September 2004 |
Ends: |
28 February 2005 |
Value (£): |
3,900
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| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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We propose to study the rare two photon E0 decay of the first excited 0+ state of Ge-72. This is a rare second order decay process that is in competition with the main decay mechanism through conversion electron decay. Ge-72 is a prime test case as the first excited 0+ state is also the first excited state with any spin in this nucleus and therefore all decays to the 0+ groundstate must proceed either via internal conversion or the two photon decay mechanism. This excited 0+ state can readily be excited with pulsed fast neutrons and the long halflife (400 ns) of the state allows a clean triggering on the decay while suppressing any prompt neutron induced radiation. The use of modern position sensitive segmented HPGe prototype detectors in this study has the advantage that we can use the Ge-72 present in the Ge detectors both as source and detector, resulting in an elegant setup with unprecedented efficiency. The decay mechanism has been observed in few other cases, eg Ca-40, and a branching ratio determined. However, this case is the only one where all competing decay channels and paths are energetically excluded.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.liv.ac.uk |