matthew reed, brighton pre-spec meeting january 2011
DESCRIPTION
Discovery of highly excited long-lived isomers in neutron-rich hafnium and tantalum isotopes through direct mass measurements. Matthew Reed, Brighton PRE-SPEC meeting January 2011. Region of Interest. 2. I. J. Cullen, Private Communication. Matthew Reed, Brighton PRE-SPEC meeting January 2011. - PowerPoint PPT PresentationTRANSCRIPT
Discovery of highly excited long-lived isomers in neutron-
rich hafnium and tantalum isotopes
through direct mass measurements
Matthew Reed, Brighton PRE-SPEC meeting January 2011
Region of Interest
2. I. J. Cullen, Private Communication
Matthew Reed, Brighton PRE-SPEC meeting January 2011
Region of Interest
2. I. J. Cullen, Private Communication
Matthew Reed, Brighton PRE-SPEC meeting January 2011
Region of Interest
3. P. Walker et al., Nature, 399 (1999) 35-40
Matthew Reed, Brighton PRE-SPEC meeting January 2011
IonSources UNILAC
SIS
ES
R
SHIP
FR
S
Experimental Areas
197Au Beam at ~500 Mev/u
9Be Target
Matthew Reed, Brighton PRE-SPEC meeting January 2011
1. F. Bosch, J. Phys. B: At. Mol. Opt. Phys. 36(2003) 585-597
Matthew Reed, Brighton PRE-SPEC meeting January 2011
time
4 particles with different mass over charge ratios
Sin(1)
Sin(2)
Sin(3)
Sin(4)
1234time
Fast Fourier Transform
Schottky Mass Spectrometry
Matthew Reed, Brighton PRE-SPEC meeting January 2011
Matthew Reed, Brighton PRE-SPEC meeting January 2011
Matthew Reed, Brighton PRE-SPEC meeting January 2011
Matthew Reed, Brighton PRE-SPEC meeting January 2011
A =190
q=+74
190W+74
190Re+74
190mOs+74
190gOs+74
Matthew Reed, Brighton PRE-SPEC meeting January 2011
Matthew Reed, Brighton PRE-SPEC meeting January 2011
Loss MechanismBare Ions
Lorentz Corrected
t1/2=21(4)m
Matthew Reed, Brighton PRE-SPEC meeting January 2011
Hafnium A=183
Matthew Reed, Brighton PRE-SPEC meeting January 2011
Hafnium A=183
γ decay ~3s cooling time
Matthew Reed, Brighton PRE-SPEC meeting January 2011
A=184
184gTa+72
184gHf+72
Matthew Reed, Brighton PRE-SPEC meeting January 2011
A=184
184gTa+72
184gHf+72
184m1Hf+72
Matthew Reed, Brighton PRE-SPEC meeting January 2011
A=184
184gTa+72
184gHf+72
184m1Hf+72
184m2Hf+72
Matthew Reed, Brighton PRE-SPEC meeting January 2011
Matthew Reed, Brighton PRE-SPEC meeting January 2011
Merging
2. I. J. Cullen, Thesis 2010
TantalumA=186
Matthew Reed, Brighton PRE-SPEC meeting January 2011
TantalumA=186
γ decay
Matthew Reed, Brighton PRE-SPEC meeting January 2011
TantalumA=186
β decay
Matthew Reed, Brighton PRE-SPEC meeting January 2011
A=187
187gRe+73
187gTa+73
187gW+73
Matthew Reed, Brighton PRE-SPEC meeting January 2011
A=187
187gRe+73
187gTa+73
187gW+73
187m1Ta+73
Matthew Reed, Brighton PRE-SPEC meeting January 2011
A=187
187gRe+73
187gTa+73
187gW+73
187m1Ta+73
187m2Ta+73
Matthew Reed, Brighton PRE-SPEC meeting January 2011
Results
Matthew Reed, Brighton PRE-SPEC meeting January 2011
Results
Matthew Reed, Brighton PRE-SPEC meeting January 2011
Results
Matthew Reed, Brighton PRE-SPEC meeting January 2011
Collaborators
P.M. Walker, K. Blaum, F. Bosch, C. Brandau, J.J. Carroll, D.M. Cullen, I.J. Cullen, A.Y. Deo, B. Detwiler, C. Dimopoulou, G.D.Dracoulis,
F. Farinon, H. Geissel, E. Haettner, M. Heil, R.S. Kempley, R. Knöbel, C. Kozhuharov, J. Kurcewicz, N. Kuzminchuk, S. Litvinov, Yu.A.Litvinov,
Z. Liu, R. Mao, C. Nociforo, F. Nolden, W.R. Plass, A. Prochazka, C.Scheidenberger, M. Steck, T. Stöhlker, B. Sun, T.D. Swan, G. Trees,
H. Weick, N. Winckler, M.Winkler, P.J. Woods and T.Yamaguchi
Thank you!
Matthew Reed, Brighton PRE-SPEC meeting January 2011