In vivo dosimetry is important during radiotherapy to ensure the accuracy of the dose delivered to the treatment volume. A dosimeter should be characterized based on its application before it is used for in vivo dosimetry. In this study, we characterize a new MOSFET-based detector, the MOSkin detector, on surface for in vivo skin dosimetry. The advantages of the MOSkin detector are its water eq...

This paper reports a beta/gamma radiation detector that is manufactured by in-package assembly of micromachined stainless steel and glass elements. The detector is hermetically-sealed at 760 Torr with an Ar fill-gas. Gas micro-discharges (between the steel elements) are triggered by the presence of radiation, which can concomitantly transmit a wideband wireless signal. The detector diameter and...

The VeriSpreader radiation detection system will monitor every container passing through a shipping terminal without impeding the flow of commerce by making the radiation measurements during normal container handling. This is accomplished by integrating neutron and spectroscopic gamma ray detectors into a container crane spreader bar, the part of the crane that directly engages the intermodal s...

introduction radioactive materials naturally exist in the world. indeed, approximately 82% of human-absorbed radiation doses, which are out of human control, arise from natural sources of radiation including cosmic, terrestrial, and exposure through inhalation or ingestion. thus, the aim of the present study was to estimate health risk, as well as the effective and organ doses from naturally oc...

Background The increased use of diagnostic imaging requiring the use of “ionizing radiation,” the rapidly expanding use of computed tomography in the emergency setting, the introduction of multi-detector CT units and newly reported concerns related to the human consequences of low-level radiation exposure have revitalized a long-standing concern over the quantification and management of an indi...

The High Energy cosmic-Radiation Detection facility (HERD) is a calorimetric experiment planned to be launched in 2027. It will operational for at least 10 years on board the China Space Station. With HERD we measure energy flux of cosmic protons and heavier nuclei from 30 GeV up to, first time space, few PeV. We search signatures annihilation decay products dark matter spectrum electrons gamma...

We have examined long term changes in signal amplitude gain, energy resolution and detection efficiency for the active components of the PIBETA detector system. Beam defining plastic scintillation counters were operated in a ∼ 1 MHz stopped π + beam for a period of 297 days, accumulating radiation doses of up to 2 · 10 6 rad. Detectors in the charged particle tracking system—a pair of cylindric...

An implantable beta-radiation detector suitable for the measurement of reginal blood flow in the experimental animal by the indicator clearance principle is described. A lithium-drifted silicon diode encapsulated in a stainless steel case is sutured over the site of interest. A suitable beta-emitting isotope, such as 85Kr in saline solution, is injected into the arterial supply and its calibrat...