Angular Distribution of Single-Quantum Annihilation Radiation

1967 ◽  
Vol 159 (1) ◽  
pp. 61-68 ◽  
Author(s):  
W. R. Johnson
Keyword(s):  
Angular Distribution ◽  
Annihilation Radiation ◽  
Single Quantum

Angular Distribution of Annihilation Radiation

1949 ◽  
Vol 76 (3) ◽  
pp. 440-440 ◽  
Author(s):  
S. DeBenedetti ◽  
C. E. Cowan ◽  
W. R. Konneker
Keyword(s):  
Angular Distribution ◽  
Annihilation Radiation

Angular Distribution of Positron Annihilation Radiation in Vanadium and Niobium–Experiment

1975 ◽  
Vol 38 (2) ◽  
pp. 423-430 ◽  
Author(s):  
Nobuhiro Shiotani ◽  
Takuya Okada ◽  
Tadashi Mizoguchi ◽  
Hisashi Sekizawa
Keyword(s):  
Angular Distribution ◽  
Positron Annihilation ◽  
Annihilation Radiation

THE ANGULAR CORRELATION OF ANNIHILATION RADIATION

1951 ◽  
Vol 29 (1) ◽  
pp. 32-35 ◽  
Author(s):  
P. E. Argyle ◽  
J. B. Warren
Keyword(s):  
Angular Distribution ◽  
Angular Correlation ◽  
Electron Energy ◽  
Annihilation Radiation ◽  
Coincidence Rate ◽  
Mass Center ◽  
Average Momentum ◽  
Residual Motion ◽  
Angle Of Deviation

The angular distribution of annihilation radiation from copper 64 has been measured with a pair of scintillation counters in coincidence. Coincidences were found when the counters and source were not quite collinear. The relation between the noncollinear coincidence rate and angle of deviation λ could be closely approximated to by an exponential of the form [Formula: see text], where λ0 = (3.60 ± 0.04) 10−3 radian. Interpreting this departure from antiparallelism of the two photons as arising from the residual motion of the annihilating pair, the average momentum of their mass center in copper is found to be (7.20 mc.) × 10−3 which corresponds to an electron energy of 13.2 ev., if the positron is assumed to be thermalized before annihilation.

Angular Distribution of Positron Annihilation Radiation in Aluminum–Experiment

1976 ◽  
Vol 41 (3) ◽  
pp. 836-840 ◽  
Author(s):  
Takuya Okada ◽  
Hisashi Sekizawa ◽  
Nobuhiro Shiotani
Keyword(s):  
Angular Distribution ◽  
Positron Annihilation ◽  
Annihilation Radiation

On the Angular Distribution of Two-Photon Annihilation Radiation

1950 ◽  
Vol 77 (2) ◽  
pp. 205-212 ◽  
Author(s):  
S. DeBenedetti ◽  
C. E. Cowan ◽  
W. R. Konneker ◽  
H. Primakoff
Keyword(s):  
Angular Distribution ◽  
Annihilation Radiation ◽  
Two Photon ◽  
Photon Annihilation

The Angular Distribution of Positron Annihilation Radiation

1942 ◽  
Vol 61 (5-6) ◽  
pp. 222-224 ◽  
Author(s):  
Robert Beringer ◽  
C. G. Montgomery
Keyword(s):  
Angular Distribution ◽  
Positron Annihilation ◽  
Annihilation Radiation
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