This paper describes an investigation of the performance compromises imposed by a manufacturing approach that utilizes lithographic micromachining processes to fabricate a wireless beta/gamma radiation detector. The device uses in-package assembly of stainless steel electrodes and glass spacers. These elements are micromachined using photochemical etching and powder blasting, respectively. The ...

BACKGROUND DNA damage occurs as a consequence of both direct and indirect effects of ionizing radiation. The severity of DNA damage depends on the physical characteristics of the radiation quality, e.g., the linear energy transfer (LET). There are still contrary findings regarding direct or indirect interactions of high-LET emitters with DNA. Our aim is to determine DNA damage and the effect on...

In this research, alpha-emitter concentrations of 222Rn, 226Ra, and 238U in Iranian, Turkish, Egyptian, Saudi Arabian, Iraqi canned cheeses that are available markets were measured using the CR-39 detector. Also, health risk parameters associated with ingestion radionuclides, such as annual average internal effective dose (AAIED) an excess cancer fatality per million persons (RECFPMP), calculat...

Radiation effects in pine forest Influence of IR on forest ecosystems most clearly revealed itself near the Chernobyl NPP (ChNPP), where magnitudes of absorbed doses reached 'lethal' values, as applied to conifers. Main contribution to absorbed dose was due to beta-radiation of short-living radionuclides. To largest extent the radiobiological effects appeared at injured plantations of pines and...

In this paper the emerging critical point in Nuclear Medicine radiation protection are presented. Shielding issues regarding cyclotron installations, as well as safe delivery of radionuclides and management of gaseous effluents are addressed. Manipulation of beta and positron emitting radionuclides is also discussed, with reference to the problem of correct assessment of personal dose to the ex...

When attacked by insects, plants release mixtures of volatile compounds that are beneficial for direct or indirect defense. Natural variation of volatile emissions frequently occurs between and within plant species, but knowledge of the underlying molecular mechanisms is limited. We investigated intraspecific differences of volatile emissions induced from rosette leaves of 27 accessions of Arab...

The well-known spherical-deformed-transitional nucleus and potential $0\ensuremath{\nu}\ensuremath{\beta}\ensuremath{\beta}\phantom{\rule{4pt}{0ex}}$emitter $^{150}\mathrm{Nd}\phantom{\rule{4pt}{0ex}}$and its daughter $^{150}\mathrm{Sm}\phantom{\rule{4pt}{0ex}}$were investigated in nuclear resonance fluorescence experiments using quasimonoenergetic, linearly polarized $\ensuremath{\gamma}$-ray ...