STUDIES OF 48Ni USING THE OPTICAL TIME PROJECTION CHAMBER

Journal Article · Sun Jan 01 04:00:00 EST 2012 · Acta Physica Polonica B

DOI:https://doi.org/10.5506/APhysPolB.43.267· OSTI ID:1050944

Pomorski, M. ^[1]; Pfutzner, Marek ^[2]; Dominik, W. ^[1]; Grzywacz, Robert Kazimierz ^[2]; Baumann, T. ^[3]; Czyrkowski, H. ^[1]; Dabrowski, Ryszard ^[4]; Ginter, T. N. ^[3]; Johnson, J. ^[5]; Kaminski, A. ^[6]; Liddick, S. N. ^[7]; Maier, Karl ^[2]; Mazzocchi, C. ^[8]; Mianowski, S. ^[1]; Miernik, K. ^[5]; Pereira, J. ^[9]; Rykaczewski, Krzysztof Piotr ^[2]; Stolz, A. ^[3]; Suchyta, S. ^[3]

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1. University of Warsaw
2. ORNL
3. Michigan State University, East Lansing
4. Warsaw University
5. Oak Ridge National Laboratory (ORNL)
6. PAN, Krakow, Poland
7. Oak Ridge Associated Universities (ORAU)
8. University of Tennessee, Knoxville (UTK)
9. National Superconducting Cyclotron Laboratory (NSCL)

The decay of the extremely neutron deficient {sup 48}Ni was studied by means of an imaging time projection chamber which allowed recording tracks of charged particles. Four decays with two-proton tracks clearly corresponding to two-proton radioactivity were registered, providing the first direct evidence for this decay mode in {sup 48}Ni. The half-life of {sup 48}Ni is determined to be T{sub 1/2} = 2.1{sub -0.4}{sup +1.4} ms. The measured decay energy is 1.28(6) MeV.

• Research Organization: Oak Ridge National Laboratory (ORNL); Holifield Radioactive Ion Beam Facility; Other RIB Facility
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1050944
• Journal Information: Acta Physica Polonica B, Journal Name: Acta Physica Polonica B Journal Issue: 2 Vol. 43; ISSN 0587-4254
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHARGED PARTICLES
DECAY
HALF-LIFE
NEUTRONS
RADIOACTIVITY
TIME PROJECTION CHAMBERS