Equivalent dose estimation for pottery by single disc regeneration method

1994 ◽  
Vol 23 (2-3) ◽  
pp. 451-454 ◽  
Author(s):  
Man-Yin W. Tso ◽  
Sheng-Hua Li
2011 ◽  
Vol 38 (4) ◽  
pp. 413-423 ◽  
Author(s):  
Constantin Athanassas

Abstract Difficulties in evaluating accurate equivalent doses for Late Quaternary sediments from the south coasts of Greece arose in the course of SAR measurements. Large scatter among apparent equivalent doses perplexed the evaluation of accurate mean estimates in circumstances where very large doses were involved. Besides, dose recovery experiments revealed that when intersection of the natural signal occurs onto the saturating segment of the growth curve, a distinct relationship between De and growth curve shape occurs. At very low slope angles, SAR tends to overestimate the recovered dose. The mechanism which controls the spread in equivalent dose estimation is investigated.


2014 ◽  
Vol 111 ◽  
pp. S143
Author(s):  
J. Terron Leon ◽  
L. Irazola ◽  
M. Lorenzoli ◽  
R. Bedogni ◽  
A. Pola ◽  
...  

2001 ◽  
Vol 33 (1) ◽  
pp. 73-94 ◽  
Author(s):  
D Banerjee ◽  
A.S Murray ◽  
L Bøtter-Jensen ◽  
A Lang

2021 ◽  
Vol 66 (2) ◽  
pp. 76-77
Author(s):  
Yu. Zabaryanskiy ◽  
A Golovin ◽  
Yu. Kurachenko

Purpose: To estimate the doses to a surgeon for a new operation – radionuclide vertebroplasty. To normalize the irradiation for the maximum number of operations in which the total equivalent dose will not exceed the values specified in the NRB-99/2009. Material and methods: The widespread Monte-Carlo code MCNP used with data libraries, as well as the ICRP-38 data on radionuclide characteristics. Results: Using the radionuclide 188Re, the most promising for this procedure, the equivalent dose in the doctor’s palms does not exceed 1 mSv per operation. A surgeon can perform up to 580 operations per year without violating radiation safety standards. Conclusion: Calculation methods proved the safety of radionuclide vertebroplasty for the surgeon and service personnel.


2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Eren Şahiner ◽  
George S. Polymeris ◽  
M. Zeynel Öztürk ◽  
Y. Kağan Kadioğlu ◽  
Niyazi Meriç

AbstractThis study provides methodological aspects on the equivalent dose estimation for travertine samples, namely heated calcium carbonate, using the TL multiple-aliquot additive-dose approach. Large equivalent doses (EDs), within the range 750–1300 Gy, were calculated using the plateau method based on the NTL glow curve. Moreover, a component resolved TL glow-peak analysis was carried out, using the integrated intensity of the NTL glow peaks for the ED estimation after deconvolution based on the OTOR model. Three different TL peaks were used, termed P4, P5 and P6. The integrated intensity of TL glow peak P4 resulted in age overestimation (15–26%), compared to the age provided using the plateau method. This overestimation could be attributed to the fact that the temperature range of P4 does not coincide with the plateau region of each sample. Milder overestimation (8–14%) was noticed using the integrated intensity of TL glow peak P6, mostly due to the poor deconvolution resolution. Only the integrated intensity of TL glow peak P5 after deconvolution provides ED values compatible with those yielded using the plateau method, with good accuracy. The present study suggests not using the TL intensity (neither in terms of integrated intensity nor of peak height intensity) for ED estimation; instead it is highly recommended to use either the plateau method, or alternatively integrated intensity of TL peak P5 after deconvolution. Unfortunately, using the peak height of TL P5 is not recommended, due to overlapping with P6.


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