In gamma-ray spectrometry, the analysis of the environmental radioactivity samples (soil, sediment and ash of a living organism) needs to know the linear attenuation coefficient of the sample matrix. This coefficient is required to calculate the self-absorption correction factor through the sample bulk. In addition, these parameters are very important because the unidentified samples can be different in the composition and density from the reference liquid sources which are usually used for efficiency calibration in the radioactive monitoring process. The present work is essentially concerned to introduce a mathematical method to calculate the linear attenuation coefficient without using any collimator. This method was based mainly on the calculations of the effective solid angle subtended by the source-to-the detector configurations, the efficiency transfer technique and the average path lengths through the samples itself. The method can be used as a tool for the calculation of the linear attenuation coefficient of unidentified materials with good facility to use it in the calibration process of γ-ray detectors, particularly in the study of soil samples. The results are compared with the data from NIST-XCOM to show how much the results are in close agreement and to give the validity of the approach.
Stems of Santalum album (Sandalwood), Mangiferra indica (Mango wood), and Tinospora cordifolia (Giloy) are widely used in the preparation of herbal medicines and formulations in the traditional Indian health care system called Ayurveda. These were analyzed for 4 minor (K, Ca, Cl, Mg) and 13 traces (As, Ce, Co, Cr, Cu, Fe, Hg, La, Mn, Na, Se, V, and Zn) including toxic elements by instrumental neutron activation analysis (INAA). Samples in powder form along with reference materials (NIST SRM 1547 and INCT MPH-2) as comparators were irradiated for 1 min/6 h in Dhruva/CIRUS reactors at BARC, Mumbai. Gamma activity was measured by high-resolution gamma-ray spectrometry. In general, K, Ca, Fe, Mn, and Zn contents are very high in all the samples but Santalum album, widely used as a perfume, is more enriched in K, Ca, Cr, Zn, and Se. The concentration of Ca is always high as a major constituent (> 10 mg/g) in all the stem/bark of plant species. A strong inverse correlation (R2 = 0.9999) was observed between Fe and Zn in all three samples and that may be useful in drug manufacturing.
Many thanks for publishing my article in your great journal and the friendly and hassle-free publication process, the constructive peer-review, the regular feedback system, and the Quick response to a...
Azab Elsayed Azab
"An amazing experience with the Journal of Advanced Pediatrics and Child Health. Very fast blind review with pertinent corrections and suggestions. I highly recommand both the journal and the editor."
Chaimae Khairoun
Great, thank you! It was very efficient working w/ your group. Very thorough reviews (i.e., plagiarism, peer, etc.). Would certainly recommend that future authors consider working w/ your group.
David W Brett
''Co-operation of Archives of Surgery and Clinical Research journal is appreciable. I'm impressed at the promptness of the publishing staff and the professionalism displayed. Thank you very much for y...
Anıl Gokce
The editorial process was quickly done. The galley proof was sent within a week after being accepted for publication.
The editorial team was very helpful and responded promptly.
India
Rohit Kulshrestha
Your service is very good and fast reply, Also your service understand our situation and support us to publication our articles.
Palestine College of Nursing, Khan Younis, Gaza St...
Ayman M Abu Mustafa
We really appreciate and thanks the full waiver you provide for our article. We happy to publish our paper in your journal. Thank you very much for your good support and services.
Ali Abusafia
Congratulations for the excellence of your journal and high quality of its publications.
Angel MARTIN CASTELLANOS
I would like to thank this journal for publishing my Research Article. Something I really appreciate about this journal is, they did not take much time from the day of Submission to the publishing dat...
Ayush Chandra
The service from the journal staff has been excellent.
HSPI: We're glad you're here. Please click "create a new Query" if you are a new visitor to our website and need further information from us.
If you are already a member of our network and need to keep track of any developments regarding a question you have already submitted, click "take me to my Query."