The thermally excited axial oscillation of the electron through the weak magnetic bottle needed for the continuous Stern-Gerlach effect modulates the cyclotron frequency and produces a characteristic approximately 12-kHz-wide vertical rise-exponential decline line shape of the cyclotron resonance. At the same time the relativistic mass shift decreases the frequency by approximately 200 Hz per c...

Since 2001 a superconducting cyclotron for proton therapy has been designed in collaboration with the National Superconducting Cyclotron Laboratory (NSCL) at ACCEL Instruments GmbH [1]. The design is based on a NSCL proposal originating from 1993 [2]. In the recent years two cyclotrons of this type were built, tested as far as magnetic and cryogenic properties are concerned and installed at the...

Swift J1626.6−5156 is a Be/X-ray binary that was in outburst from December 2005 until November 2008. We have examined RXTE/PCA and HEXTE spectra of three long observations of this source taken early in its outburst, when the PCA 2− 20 keV count rate was > 70 counts sPCU, as well as several combined observations from different stages of the source’s life. The spectra are best fit with an absorbe...

background: pet/ct imaging using [18f]-fdg is utilized in clinical oncology for tumor detecting, staging and responding to therapy procedures. essential consideration must be taken for radiation staff due to high gamma radiation in pet/ct and cyclotron center. the aim of this study was to assess the staff exposure regarding whole body and organ dose and to evaluate environment dose in pet/ct an...

A model for EEG as a communication tool of magnetic body is developed. The basic assumption is that communications from cell membrane occur by Josephson radiation inducing the analogs of cyclotron transitions: this leads to resonance conditions forcing the Josephson frequencies to be equal to cyclotron frequencies in the simplest situation. Music metaphorin particular

The Scanditronix MC40 variable energy cyclotron at the University of Birmingham is perhaps the most flexible research cyclotron in the country. Its extracted beam facilities are well used for isotope production, surface activation / wear and materials damage studies. Over the least 5 years a capability for radiobiology and dosimetry studies has been developed which enables use of the available ...

Optical detection of magnetic and cyclotron resonances enables not only to study magnetic and cyclotron resonances by observation of light emission modifications, but also allows identification of channels of radiative and nonradiative recombination in a given material. In the present review we shortly describe applications of the two optically detected resonance methods for studies of magneto-...

The composition dependence of the in-plane conduction band effective mass in strained 15nm-thick lattice-mismatched GatJn,As/InP single quantum wells was determined by conventional cyclotron and optically detected cyclotron resonance techniques. Our results are in agreement with a self-consistent calculation taking into account effects due to nonparabolicity, confinement, strain, and finite two...

Background: Compact cyclotrons are getting popular to fulfill enormous current demands of PET tracers. Aga Khan University Hospital, Karachi, Pakistan has acquired the first smallest footprint of BG-75 Generator for 18FDG-based PET/CT clinical imaging. We are sharing our experience of BG-75 in the first year (December 2015-November 2016) after commissioning. Mater...