LLX separation of carrier-free,94,95,97,103Ru,93,94,95,96,99mTc and95,96Nb produced in alpha-particle activated molybdenum by TOA

1997 ◽  
Vol 221 (1-2) ◽  
pp. 167-171 ◽  
Author(s):  
S. Lahiri ◽  
B. Mukhopadhyay ◽  
N. R. Das
Keyword(s):  
Alpha Particle ◽  
Carrier Free

Production of 119mSn by alpha particle bombardment of 116Cd and its carrier-free separation

1981 ◽  
Vol 43 (8) ◽  
pp. 1727-1730 ◽  
Author(s):  
Hisakazu Muramatsu ◽  
Hiromichi Nakahara ◽  
Minoru Yanokura
Keyword(s):  
Alpha Particle ◽  
Particle Bombardment ◽  
Carrier Free

ALPHA-PARTICLE RESONANT STATES IN MEDIUM WEIGHT NUCLEI

1971 ◽  
Vol 32 (C6) ◽  
pp. C6-185-C6-187
Author(s):  
A. DUDEK ◽  
P. E. HODGSON
Keyword(s):  
Alpha Particle ◽  
Resonant States ◽  
Medium Weight

DIE ZUSAMMENSETZUNG DER JODHALTIGEN VERBINDUNGEN UND IHRE BEZIEHUNG ZUM JODUMSATZ IN EUTHYREOTEN STRUMEN

1962 ◽  
Vol 41 (4) ◽  
pp. 584-594 ◽  
Author(s):  
Dankwart Reinwein ◽  
Erich Klein
Keyword(s):  
Column Chromatography ◽  
Iodine Content ◽  
High Plasma ◽  
Secretion Rate ◽  
Total Iodine ◽  
Iodine Compound ◽  
Hormonal Secretion ◽  
Carrier Free ◽  
Iodine Metabolism ◽  
Diffuse Goiter

ABSTRACT The iodine metabolism was investigated in 29 patients with euthyroid non-endemic diffuse goiter. 1 to 14 days before thyroidectomy the patients received carrier-free 131I. The chemical iodine fractions (PBI, BEI and iodide) of the thyroid and the labelled iodine compound were analyzed by means of paper- and column chromatography. In one gland the total iodine content varied only by ± 19.6% of the average, the relative shares of PBI, BEI and iodide as well as that of the iodoamino acids being equal. Monoiodotyrosine, diiodotyrosine and thyroxine were found in the thyroid homogenate without hydrolysis. The homogenate after hydrolysis contained more iodotyrosines at the expense of iodothyronines than do normal glands. 17 goiters with normal 131I-uptake showed a high total iodine content (14.2 ± 5.0 mg) whilst 9 goiters with an increased 131I-uptake had low values (3.58 ± 0.6 mg). The opposite was found for the relative shares of BEI with the chromatographically isolated iodothyronines thyroxine, triiodothyronine and an unidentified iodine compound. Goiters with »high plasma PB131I« were characterized by a faster transfer of 131I into the more heavily iodinated compounds than is found in glands with a normal hormonal secretion rate. The highest values for the iodothyronines were found in goiters with increased 131I-uptake together with a high hormonal secretion rate. From this study it appears that the changes in the iodine-poor glands are due to a defective exo- or endogenous iodine supply. The observed alterations in iodine-rich glands are probably induced by a faulty iodine utilization characterized by an incomplete iodotyrosyl-coupling defect.

Patient-Specific Alpha-Particle Dosimetry

2011 ◽  
Vol 4 (4) ◽  
pp. 329-335 ◽  
Author(s):  
Stig Palm ◽  
Jorgen Elgqvist ◽  
Lars Jacobsson
Keyword(s):  
Alpha Particle ◽  
Patient Specific ◽  
Particle Dosimetry

Nuclear Electrons and Nuclear Structure

2018 ◽  
Author(s):  
Roger H. Stuewer
Keyword(s):  
Nuclear Structure ◽  
Beta Decay ◽  
Gamma Rays ◽  
Alpha Particle ◽  
Continuous Distribution ◽  
Alpha Particles ◽  
Light Nuclei ◽  
Coincidence Method ◽  
Wolfgang Pauli ◽  
Beta Particles

Serious contradictions to the existence of electrons in nuclei impinged in one way or another on the theory of beta decay and became acute when Charles Ellis and William Wooster proved, in an experimental tour de force in 1927, that beta particles are emitted from a radioactive nucleus with a continuous distribution of energies. Bohr concluded that energy is not conserved in the nucleus, an idea that Wolfgang Pauli vigorously opposed. Another puzzle arose in alpha-particle experiments. Walther Bothe and his co-workers used his coincidence method in 1928–30 and concluded that energetic gamma rays are produced when polonium alpha particles bombard beryllium and other light nuclei. That stimulated Frédéric Joliot and Irène Curie to carry out related experiments. These experimental results were thoroughly discussed at a conference that Enrico Fermi organized in Rome in October 1931, whose proceedings included the first publication of Pauli’s neutrino hypothesis.

scholarly journals The study of alpha particle induced reactions on bismuth-209 isotopes using computer code COMPLET

2019 ◽  
Vol 3 (11) ◽  
pp. 115006
Author(s):  
Yihunie Hibstie Asres ◽  
Manny Mathuthu ◽  
Ermias Yitayew Beyene
Keyword(s):  
Alpha Particle ◽  
Computer Code
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