Universität zu Köln

Barber, L., Heery, J., Cullen, D. M., Singh, B. S. Nara, Herzberg, R-D, Mueller-Gatermann, C., Beeton, G., Bowry, M., Dewald, A., Grahn, T., Greenlees, Pt, Illana, A., Julin, R., Juutinen, S., Keatings, J. M., Luoma, M., O'Donnell, D., Ojala, J., Pakarinen, J., Rahkila, P., Ruotsalainen, P., Sandzelius, M., Saren, J., Sinclair, J., Smith, J. F., Sorri, J., Spagnoletti, P., Tann, H., Uusitalo, J., Vilhena, J. and Zimba, G. (2020). A charge plunger device to measure the lifetimes of excited nuclear states where transitions are dominated by internal conversion. Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip., 979. AMSTERDAM: ELSEVIER. ISSN 1872-9576

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Abstract

A charge plunger device has been commissioned based on the DPUNS plunger (Taylor a al., 2013) using the in-flight mass separator MARA at the University of Jyvaskyla. The Sm-152(S-32,4n)Pt-180 reaction was used to populate excited states in Pt-180. A lifetime measurement of the 2(1)(+ )state was performed by applying the charge plunger technique, which relies on the detection of the charge state-distribution of recoils rather than the detection of the emitted gamma rays. This state was a good candidate to test the charge plunger technique as it has a known lifetime and depopulates through a converted transition that competes strongly with gamma-ray emission. The lifetime of the 2(1)(+) state was measured to be 480(10) ps, which is consistent with previously reported lifetimes that relied on the standard gamma-ray techniques. The charge plunger technique is a complementary approach to lifetime measurements of excited states that depopulate through both gamma-ray emission and internal conversion. In cases where it is not possible to detect Doppler-shifted gamma rays, for example, in heavy nuclei where internal conversion dominates, it may well be the only feasible lifetime analysis approach.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Barber, L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Heery, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Cullen, D. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Singh, B. S. Nara UNSPECIFIED UNSPECIFIED UNSPECIFIED Herzberg, R-D UNSPECIFIED UNSPECIFIED UNSPECIFIED Mueller-Gatermann, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Beeton, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bowry, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Dewald, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Grahn, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Greenlees, Pt UNSPECIFIED UNSPECIFIED UNSPECIFIED Illana, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Julin, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Juutinen, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Keatings, J. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Luoma, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED O'Donnell, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ojala, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pakarinen, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rahkila, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ruotsalainen, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sandzelius, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Saren, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sinclair, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Smith, J. F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sorri, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Spagnoletti, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Tann, H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Uusitalo, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Vilhena, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Zimba, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-313910
DOI:	10.1016/j.nima.2020.164454
Journal or Publication Title:	Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip.
Volume:	979
Date:	2020
Publisher:	ELSEVIER
Place of Publication:	AMSTERDAM
ISSN:	1872-9576
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language RECOIL; COEFFICIENTS Multiple languages Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/31391