PRESENT METHODS of measuring intestinal absorption of ra(lio-vitamin B12 iiuclude measurements of the radioactivity (1) in the feces, (2) over tIme liver projection, (:3) ii the serum, or (4) of the fraction of the al)sori'ed radioactivity excreted in the urine after the injection of a large amuiount of nonlabeled vitamin B12. \Vhile all these methods give clinically valuable results, Ilomie gi...

Scintillation counting is one of the most important developments in the application of radioisotopes to procedures needed by scientists, physicians, engineers, and technicians from many diverse discipline for the detection and quantitative measurement of radioactivity. In fact, Scintillation is the most sensitive and versatile technique for the detection and quantification of radioactivity. Par...

BACKGROUND In boron neutron capture therapy (BNCT), positron emission tomography (PET) with 4-borono-2-18F-fluoro-phenylalanine (FBPA) is the only method to estimate an accumulation of 10B to target tumor and surrounding normal tissue after administering 10B carrier of L-paraboronophenylalanine and to search the indication of BNCT for individual patient. Absolute concentration of 10B in tumor h...

The purpose of this study was to examine reliability and validity of a new method of measuring hand size in which a tape measure is wrapped around the hand in a figure-of-eight pattern. In the first experiment, two testers measured hand size in 60 individuals with no recent history of injury or surgery. Intraclass correlation coefficients of 0.99 and 0.97 indicated high intratester and intertes...

The scope of this study is to characterize the response a CdZnTe spectrometer evaluate its performance for measuring radioactivity in marine environment. semiconductor detectors have never been used before such applications. More specifically, with 4 cm3 CZT crystal was studied under various scenarios, by means Monte Carlo simulations and lab measurements. Using code MCNP5, effect water’s salin...

One of the most shocking accidents that have impacted world recently was devastation Fukushima-Daiichi nuclear power plant following a major earthquake followed by strong 15-meter Tsunami wave affecting east coast region. adverse consequences this catastrophic event is release and dissemination radioactive materials in surrounding environment. Tellurium-129m one comprehensively traced fission p...

Abstract Soil and sand samples were collected from eight different locations in the Al-Dakhiliya governorate, Sultanate of Oman to determine evaluate natural artificial radioactivity levels. The activity concentrations radionuclides 137 Cs, 226 Ra, 40 K, 235 U 228 Ac measured using high resolution gamma-ray spectroscopy detectors (HPGe detectors). In addition, radiation hazard indexes evaluated...

Radiation-safety management condition in Japanese nuclear medicine facilities were investigated by the questionnaire method. The first questionnaire was asked in all Japanese 1,401 Nuclear Medicine facilities. Answers from 624 institutes (44.5%) were received and analyzed. The radiation-safety management in nuclear medicine institutes was considered to be very well performed everyday. Opinion f...

Radiation Protection in Radiology, Nuclear Medicine and Radio Oncology is of the utmost importance. Radioiodine therapy is a frequently used and effective method for the treatment of thyroid disease. Prior to each therapy the radioactivity of the [131I]-capsule must be determined to prevent misadministration. This leads to a significant radiation exposure to the staff. We describe an alternativ...