ICONE15-10412 INNOVATIVE ALPHA-RADIAOCTIVITY MONITOR FOR CLEARANCE LEVEL INSPECTION BASED ON IONIZED AIR TRANSPORTATION TECHNOLOGY (I) : COMPARISON WITH MASS SPECTRAL ANALYSIS USING URANIUM-ATTACHED SAMPLES

2007 ◽  
Vol 2007.15 (0) ◽  
pp. _ICONE1510-_ICONE1510 ◽  
Author(s):  
Yoshio AOYAMA ◽  
Yasuaki MIYAMOTO ◽  
Hiromi YAMAGUCHI ◽  
Akira SANO ◽  
Susumu NAITO ◽  
...  
Keyword(s):  
Spectral Analysis ◽  
Air Transportation ◽  
Mass Spectral Analysis ◽  
Mass Spectral ◽  
Clearance Level ◽  
Ionized Air

scholarly journals SYNTHESIS, CHARACTERIZATION, AND ANTHELMINTIC ACTIVITY OF NOVEL BENZOTHIAZOLE DERIVATIVES CONTAINING INDOLE MOIETIES

2019 ◽  
pp. 321-325
Author(s):  
ALETI RAJAREDDY ◽  
SRINIVAS MURTHY M
Keyword(s):  
Spectral Analysis ◽  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Magnetic Resonance ◽  
Fourier Transform Infrared Spectroscopy ◽  
Anthelmintic Activity ◽  
Mass Spectral Analysis ◽  
Standard Drug ◽  
Mass Spectral ◽  
Benzothiazole Derivatives

Objective: The objective of this study was to synthesize and evaluate the anthelmintic activity (AA) of novel benzothiazole derivatives containing indole moieties (BDIM). Methods: The present works which involve the substituted isatin Schiff bases undergo acetylating and reacting with 2-aminobenzothiazole to give novel BDIM. Results: All the newly synthesized molecules (5a-5o) were characterized by Fourier-transform infrared spectroscopy, H_nuclear magnetic resonance, and mass spectral analysis along with physical data. The biological potentials of the newly synthesized compounds are evaluated for their AA using an Indian earthworm (Pheretima posthuma), and albendazole was used as standard drug. Conclusion: The synthesized compound 5f, 5n, and 5o showed good AA, whereas others exhibited significant activities.

Large-scale mass spectral analysis by simplex pattern recognition

1976 ◽  
Vol 48 (12) ◽  
pp. 1768-1774 ◽  
Author(s):  
T. Fai. Lam ◽  
Charles L. Wilkins ◽  
Thomas R. Brunner ◽  
Leonard J. Soltzberg ◽  
Steven L. Kaberline
Keyword(s):  
Pattern Recognition ◽  
Spectral Analysis ◽  
Large Scale ◽  
Mass Spectral Analysis ◽  
Mass Spectral

Alpha Radioactivity Monitor Using Ionized Air Transportation for Large Size Uranium Waste: Part 1—Large Measurement Chamber and Evaluation of Detection Performance

2010 ◽  
Author(s):  
Susumu Naito ◽  
Shuji Yamamoto ◽  
Mikio Izumi ◽  
Yosuke Hirata ◽  
Yukio Yoshimura ◽  
...  
Keyword(s):  
Maximum Size ◽  
Air Transportation ◽  
Detection Performance ◽  
Practical Applications ◽  
Large Size ◽  
Large Measurement ◽  
Alpha Radioactivity ◽  
Clearance Level ◽  
Ionized Air ◽  
Measurement Chamber

We present an ionized air transportation type alpha radioactivity monitor to efficiently perform the clearance level inspection for large size uranium waste and its detection performance. In previous work, we developed a prototype monitor with an about 1000 mm cubic measurement chamber to measure the cut waste. However, in a survey of target waste, we found that it is desired to measure not only the cut waste but also the lengthy waste such as uncut cylinders. Therefore, we developed an alpha radioactivity monitor with a long and large measurement chamber (effective sizes: 500 mm x900 mm x3200 mm) for long and large cylindrically-shaped waste (maximum size: 300 mm in diameter and 3000 mm in length, weight: 10 to 200 kg). We aimed <1000 Bq as the target value of Alpha radioactivity Detection Limit (ADL), which is one-tenth of the clearance level (1 Bq/g) for 10 kg waste. The issue to size up the measurement chamber was to suppress the reduction in sensitivity of alpha radioactivity. To overcome this, we enhanced an air fan power and optimized an ion sensor design. Using this monitor, we measured and evaluated ADLs for several cases supposing the practical applications (long cylinders with a smooth surface, bump, or concavity and convexity, and pipes with several small diameters). The resulting ALD ranged from 60 Bq to 120 Bq and sufficiently satisfied the target ALD (<1000 Bq). In conclusion, this monitor has sufficient performance for the clearance level inspection for large uranium waste.

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