Neutron Activation Cross Sections at 14.8 MeV for Rubidium, Strontium, Zirconium, and Niobium

1 April 1970

journal article
research article
Published by American Physical Society (APS) in Physical Review C

Vol. 1 (4) , 1233-1236
https://doi.org/10.1103/PhysRevC.1.1233

Abstract

The activation cross sections for 18 (

n, p

), (

n, α

), and (

n, 2 n

) reactions have been measured with 14.8-MeV neutrons. The radioactivity measurements were carried out with a Ge(Li) detector. The cross sections measured, in millibarns, are

{}^{27}{Al} (n, p) {}^{27}{Mg}

, 73±5;

{}^{85}{Rb} (n, 2 n) {}^{84 m}{Rb}

, 714±50;

{}^{85}{Rb} (n, 2 n) {}^{84 g}{Rb}

, 621±75;

{}^{85}{Rb} (n, p) {}^{85 m}{Kr}

, 6±1;

{}^{87}{Rb} (n, 2 n) {}^{86 m}{Rb}

, 584±40;

{}^{87}{Rb} (n, 2 n) {}^{86 g}{Rb}

, 833±60;

{}^{87}{Rb} (n, p) {}^{87}{Kr}

, 7±1;

{}^{84}{Sr} (n, 2 n) {}^{83}{Sr}

, 395±75;

{}^{86}{Sr} (n, 2 n) {}^{85 m}{Sr}

, 360±30;

{}^{86}{Sr} (n, p) {}^{86 m}{Rb}

, 9±1;

{}^{88}{Sr} (n, 2 n) {}^{87 m}{Sr}

, 344±30;

{}^{88}{Sr} (n, p) {}^{88}{Rb}

, 20±2;

{}^{90}{Zr} (n, 2 n) {}^{89 m}{Zr}

, 143±15;

{}^{90}{Zr} (n, 2 n) {}^{89 g}{Zr}

, 342±25;

{}^{90}{Zr} (n, p) {}^{90 m}Y

, 13±1;

{}^{90}{Zr} (n, α) {}^{87 m}{Sr}

, 4.6±0.5;

{}^{93}{Nb} (n, 2 n) {}^{92 m}{Nb}

, 455±25; and

{}^{93}{Nb} (n, α) {}^{90 m}Y

, 5.8±0.5. The measured cross sectons are compared with those calculated by evaporation theory. The (

n, 2 n

) measured cross sections agree well with the calculated values but the agreement between calculated and measured values for (

n, p

) reactions is poor.

Keywords

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