scholarly journals YIELDS IN U235 THERMAL NEUTRON FISSION

1957 ◽  
Vol 35 (9) ◽  
pp. 980-985 ◽  
Author(s):  
A. P. Baerg ◽  
Rosalie M. Bartholomew
Keyword(s):  
Ion Exchange ◽  
Thermal Neutron ◽  
Mass Spectrometric ◽  
Mass Spectrometric Analysis ◽  
Spectrometric Analysis ◽  
Neutron Fission ◽  
A Value ◽  
Thermal Neutron Fission ◽  
Better Than

Quantitative ion exchange and 4π counting techniques have been used to measure the yields of four nuclides not previously determined by mass spectrometric analysis. Values of 6.57, 6.30, 4.74, and 5.71% were obtained respectively for Ba139, La141, Sr89, and Sr91 relative to a value of 6.32% for the yield of Ba140. A precision better than 1.3% was achieved in the measurements.

SOME YIELDS IN THERMAL NEUTRON FISSION OF U233 AND Pu239

1959 ◽  
Vol 37 (4) ◽  
pp. 660-663 ◽  
Author(s):  
Rosalie M. Bartholomew ◽  
J. S. Martin ◽  
A. P. Baerg
Keyword(s):  
Ion Exchange ◽  
Thermal Neutron ◽  
Neutron Fission ◽  
Beta Counting ◽  
Counting Methods ◽  
Thermal Neutron Fission

Relative yields of Sr89, Sr91, Ba139, Ba140, and La141 have been measured for U233 and Pu239 thermal neutron fission. Ion exchange separations and 4π beta-counting methods were used. The following relative values were obtained for the nuclides as listed: 1.05, 1.00, 1.00, 1, and 1.10 in U233 fission and 0.301, 0.431, 1.07, 1, and 1.01 in Pu239 fission.

CUMULATIVE YIELDS OF THE HEAVY FRAGMENTS IN THE THERMAL-NEUTRON FISSION OF 241Pu

1964 ◽  
Vol 42 (11) ◽  
pp. 2063-2079 ◽  
Author(s):  
H. Farrar ◽  
W. B. Clarke ◽  
H. G. Thode ◽  
R. H. Tomlinson
Keyword(s):  
Fine Structure ◽  
Thermal Neutron ◽  
Isotope Dilution ◽  
Yield Curve ◽  
Mass Spectrometric ◽  
Mass Yield ◽  
General Shape ◽  
Neutron Fission ◽  
Yield Curves ◽  
Thermal Neutron Fission

The relative yields of isotopes of xenon, cesium, barium, cerium, neodymium, and samarium formed by the thermal neutron fission of 241Pu have been obtained by mass spectrometric methods. The relative yields of the elements were normalized by means of the isotope dilution and isobaric techniques, and absolute cumulative yields were determined by summing the relative yields to 100%. The curve obtained for 241Pu is compared with other mass–yield curves. The general shape of this mass–yield curve is similar to that for 239Pu; yet the fine structure shows greater similarity to that for 235U thermal-neutron fission.

Mass spectrometric study of the mass yields in the thermal neutron fission of Pu241

Vacuum ◽  
1965 ◽  
Vol 15 (5) ◽  
pp. 269
Author(s):  
H. Farrar ◽  
W.B. Clarke ◽  
H.G. Thode ◽  
R.H. Tomlinson
Keyword(s):  
Thermal Neutron ◽  
Mass Spectrometric Study ◽  
Mass Spectrometric ◽  
Spectrometric Study ◽  
Neutron Fission ◽  
Thermal Neutron Fission

THE THERMAL-NEUTRON FISSION YIELDS OF 229Th

1966 ◽  
Vol 44 (5) ◽  
pp. 1011-1019 ◽  
Author(s):  
J. W. Harvey ◽  
W. B. Clarke ◽  
H. G. Thode ◽  
R. H. Tomlinson
Keyword(s):  
Thermal Neutron ◽  
Isotope Dilution ◽  
Mass Spectrometric ◽  
Neutron Fission ◽  
Thermal Neutron Fission ◽  
Mass Group ◽  
The Absolute ◽  
Fission Yields ◽  
Mass Spectrometric Techniques

The relative cumulative yields for isotopes of the elements krypton, strontium, xenon, cesium, cerium, and neodymium formed in the thermal-neutron fission of 229Th have been determined by mass spectrometric techniques. Normalization of the relative yields by means of the isotope dilution and isobaric techniques has allowed estimates to be made of the absolute cumulative yields of the heavy-mass group by forcing the sum of the yields to total 100%.

THE YIELD OF Cs138 IN THERMAL NEUTRON FISSION OF U235

1956 ◽  
Vol 34 (3) ◽  
pp. 201-205 ◽  
Author(s):  
Rosalie M. Bartholomew ◽  
A. P. Baerg
Keyword(s):  
Thermal Neutron ◽  
Half Life ◽  
Fission Yield ◽  
Neutron Fission ◽  
Counting Technique ◽  
A Value ◽  
Thermal Neutron Fission

The yield of Cs138 in thermal neutron fission of U235 has been investigated using the 4π counting technique. The value obtained for the fission yield is (7.22 ± 0.29)% based on a value of 6.32% for the fission yield of Ba140. The half-life of Cs138 was determined and found to be 32.2 ± 0.1 min.

A Questionnaire Survey on General Status and Opinions about Clinical Mass Spectrometric Analysis in Korea (2018)

2019 ◽  
Vol 9 (3) ◽  
pp. 161
Author(s):  
Sung-Eun Cho ◽  
Hyojin Chae ◽  
Hyung-Doo Park ◽  
Sail Chun ◽  
Yong-Wha Lee ◽  
...  
Keyword(s):  
Questionnaire Survey ◽  
Mass Spectrometric ◽  
Mass Spectrometric Analysis ◽  
Spectrometric Analysis ◽  
General Status

Mechanisms of Dopant Depth Profile Modification During Mass Spectrometric Analysis of Multilayer Structure

2015 ◽  
Vol 60 (6) ◽  
pp. 511-520 ◽  
Author(s):  
A.A. Efremov ◽  
◽  
V.G. Litovchenko ◽  
V.P. Melnik ◽  
O.S. Oberemok ◽  
...  
Keyword(s):  
Depth Profile ◽  
Multilayer Structure ◽  
Mass Spectrometric ◽  
Mass Spectrometric Analysis ◽  
Spectrometric Analysis ◽  
Profile Modification

Mass Spectrometric Analysis of Porcine Rhodopsin¶

2002 ◽  
Vol 75 (3) ◽  
pp. 316 ◽  
Author(s):  
Zsolt Ablonczy ◽  
Patrice Goletz ◽  
Daniel R. Knapp ◽  
Rosalie K. Crouch
Keyword(s):  
Mass Spectrometric ◽  
Mass Spectrometric Analysis ◽  
Spectrometric Analysis
Sign in / Sign up

Export Citation Format

Share Document