Multipolar model of bremsstrahlung accompanying proton-decay of nuclei

Emission of bremsstrahlung photons accompanying proton decay of nuclei is studied. The new improved multipolar model describing such a process is presented. The angular formalism of calculations of the matrix elements is stated in details. The bremsstrahlung probabilities for the $^{157}{\rm Ta}$, $^{161}{\rm Re}$, $^{167}{\rm Ir}$ and $^{185}{\rm Bi}$ nuclei decaying from the $2s_{1/2}$ state, the $^{109}_{53}{\rm I}_{56}$ and $^{112}_{55}{\rm Cs}_{57}$ nuclei decaying from the $1d_{5/2}$ state, the $^{146}_{69}{\rm Tm}_{77}$ and $^{151}_{71}{\rm Lu}_{80}$ nuclei decaying from the $0h_{11/2}$ state are predicted. Such spectra have orders of values similar to the experimental data for the bremsstrahlung photons emitted during the $\alpha$-decay. This indicates on real possibility to study bremsstrahlung photons during proton decay experimentally and perform further measurements.Comment: 14 pages, 6 figure

ОСОБЛИВОСТІ ЛОКАЛІЗАЦІЇ НЕГОСПІТАЛЬНОЇ ПНЕВМОНІЇ У ВІЙСЬКОВОСЛУЖБОВЦІВ, ЯКІ ЛІКУВАЛИСЯ У НАЦІОНАЛЬНОМУ ВІЙСЬКОВО-МЕДИЧНОМУ КЛІНІЧНОМУ ЦЕНТРІ «ГВКГ»

The results of the analysis of lung disease in community-acquired pneumonia in the militaries (including among the mobilized soldiers) who were treated in clinics NVMKTS «GVKG» are displayed. The features of localization, severity of community-acquired pneumonia, depending on the categories of patients and the season are illustrated. Most cases of all patients with severe pleurisy were recorded in the period from January to April. Severe and complicated forms were recorded more from mobilized troops compared with other categories of patients.Наведено результати аналізу ураження легень при негоспітальній пневмонії у військовослужбовців (у т.ч. серед мобілізованих військовослужбовців), які перебували на лікуванні у клініках НВМКЦ «ГВКГ». Встановлені особливості локалізації, тяжкості негоспітальної пневмонії залежно від категорій хворих і сезону року. Найбільше хворих з тяжким перебігом і з плевритом спостерігалося в період із січня по квітень. Тяжких та ускладнених форм реєструвалося більше у мобілізованих військовослужбовців порівняно з іншими категоріями хворих.

Determination of cross sections for nuclear reactions (n, x) at germanium isotopes

The cross section values for nuclear reactions 74Ge(n, α) 71mZn, 70Ge(n, p)70Ga, 76Ge(n,2n)75mGe, 70Ge(n,2n)69Ge have been measured for neutron energy 14,53 MeV, and of reaction 72Ge(n, 2n)71Ge for energies 13,32, 13,69, 14,35, 14,74 MeV as well. Measurements have been carried out with neutron activation method. The samples in the form of disks of natural germanium have been irradiated with DT-neutrons. Instrumental gamma-spectra of activation products have been measured with two HPGe spectrometers. The corrections for neutron flux instability, real geometry of the experiment, the effect of gamma-ray true coincidence summing during activation product spectra measurements, and the effect of self-absorption of gamma-rays in the sample were calculated. Average neutron energy in the samples has been determined experimentally with Zr/Nb method