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SEARCH FOR ALPHA ACTIVITY IN NEUTRON DEFICIENT ISOTOPES OF Pb, Tl, Hg, Pt, AND Te

Journal Article · · Arkiv Fysik
OSTI ID:4737367
; ;

Neutron deficient nuclides produced in the Uppsala synchrocyclotron were studied with an alpha ionization chamber, using sources of up to 10/sup 8/ dis/ min gross beta activity. The following alpha activities were observed: 3.78 ction in DDT-C/ 0.05 Mev, 10.5 ction in DDT-C/ 1.0 d, alpha branching 0.5 x 10/ sup -6/, assigned to Pt/sup 188/. 5.14 ction in DDT-C/ 0.05 Mev, 3.0 ction in DDT-C/ 0.5 min, assigned to Hg/sup 188/ or Hg/sup 187/; 5.64 ction in DDT-C/ 0.05 Mev, 53 ction in DDT-C/ 4 sec, assigned to Hg/sup 186/ or Hg/sup 185/; 6.45 ction in DDT-C/ 0.10 Mev, 33 sec, possibly due to a low-mass Bi isotope formed from lead contaminating a gold target. Upper limits varying from 10/sup - 9/ to 5 x 10/sup -5/ are set for the alpha branching of the following nuclides: Te/sup 116/-- Te/sup 119/;, Au/sup 189/--Au/sup 193/; Hg/sup 189/-Hg/sup 193/; Tl/ sup 193/-Tl/sup 195/;Tl/su p 198/; and Pb/sup 196/ Pb/sup 198/. (auth)

Research Organization:
Uppsala Univ.; and Univ. of Helsinki, Finland
NSA Number:
NSA-17-019240
OSTI ID:
4737367
Journal Information:
Arkiv Fysik, Journal Name: Arkiv Fysik Vol. Vol: 23
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

ALPHA PARTICLES
BISMUTH ISOTOPES
CYCLOTRONS
GOLD 189
GOLD 190
GOLD 191
GOLD 192
GOLD 193
GOLD ISOTOPES
IONIZATION CHAMBERS
LEAD 196
LEAD 197
LEAD 198
LEAD ISOTOPES
MERCURY 185
MERCURY 186
MERCURY 187
MERCURY 188
MERCURY 189
MERCURY 190
MERCURY 191
MERCURY 192
MERCURY 193
MERCURY ISOTOPES
PHYSICS
PLATINUM 188
PLATINUM ISOTOPES
RADIOACTIVITY
SYNCHROTRONS
TELLURIUM 116
TELLURIUM 117
TELLURIUM 118
TELLURIUM 119
TELLURIUM ISOTOPES
THALLIUM 193
THALLIUM 194
THALLIUM 195
THALLIUM 198
THALLIUM ISOTOPES