An IBM 1401 computer has been in use in the Bonner Nuclear Laboratories for approximately one year. Digital sequencing equipment and analog pulse conditioning circuits have been built and programs written to enable the use of the computer in four ways : (a) for the fast aquisition and delayed time processing of two-parameter experimental data (with an option for real-time coarse processing), up to 1000 channels being available for each parameter; (b) for fast readout and processing of data from commercial analyzers in the laboratory, resulting in a substantial increase in efficiency in the laboratory; (c) for single-parameter applications, where the system is equivalent to two 1000-channel analyzers with real or delayed-time totalizing; (d) for general-purpose computing of nuclear problems. The system is capable of further refinement and expansion.
Gamma radiations with energies less than 3 Mev have been observed with an intermediate-image lens spectrometer when targets of aluminum and fluorine were bombarded by protons. Gamma-ray spectra from Al+$p$ were obtained for proton energies of 2.4, 3.0, 4.0, and 4.4 Mev. Gamma radiation with quantum energies of 0.845, 1.014, 1.722, 2.216, and 2.992 Mev were observed and are attributed to excited states of ${\mathrm{Al}}^{27}$. Gamma radiations of 1.369 Mev from ${\mathrm{Mg}}^{24}$ and 2.741 Mev, probably from both ${\mathrm{Al}}^{27}$ and ${\mathrm{Mg}}^{24}$, were also observed. Internal conversion electrons from the excited states of ${\mathrm{Al}}^{27}$ were observed; the conversion coefficients indicate that the 0.845-Mev radiation is $E2$ and that the 1.014-Mev radiation is $M1$. Gamma radiation from ${\mathrm{F}}^{19}$+$p$ was observed with quantum energies of 1.236, 1.358, and 1.46 Mev. The relative intensities of the $\ensuremath{\gamma}$ rays were observed for proton energies of 3.22, 3.65, and 4.27 Mev.