Lifetime measurements in the picoseconds range by delayed coincidence method
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A new method has been used to measure nuclear lifetimes in the picoseconds range by direct electronic timing. This was made possible by using a centroid shift measurement without the problem of electronic drifting, and an efficient and accurate way of measuring walk effects. The coincidence events were between a beta particle and a gamma ray. The half-lives of the first excited state of Fe56, the first excited state of Hg198, and the third excited state of Fe56, were found to be 5.7±2 ps., 21.313 ps., and 30±3ps. respectively. The first two measurements agree with previous values reported in the literature and the third has not been measured before.
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This work is available on request. You can request a copy at https://library.carleton.ca/forms/request-pdf-copy-thesis
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Copyright © 1970 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.
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- 1970
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