Neutron capture by /sup 79/Br, /sup 81/Br, and /sup 75/As

Neutron capture up to 700 keV was measured for arsenic and bromine and for an enriched sample of /sup 81/Br. Individual resonance capture was parameterized in the first several kilo-electron-volts and average capture cross sections derived at the higher energies. Maxwellian average cross sections found for /sup 79,81/Br and /sup 75/As, respectively, were 741 =- 30, 244 +- 10, and 455 +- 18 mb for a temperature kT = 30 keV. Resonance capture integrals calculated for /sup 79.81/Br, respectively, were 130 +- 5 and 46.6 +- 1.8 b.