Published Data
These pages provide an access point to data contained in CCFE published journal papers. By selecting a paper, and then a specific figure or table, you can request the related underlying data if it is available for release.
Open Data for a Publication Figure
Date:
2018-07-19
First Author:
D.R. Mason
Title:
Experimental observation of the number of visible defects produced in individual primary damage cascades in irradiated tungsten
Figure Reference:
fig 3
Figure Title:
fig3
Figure Identifier:
CF/18/314
Paper Identifier:
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Title | Description | Identifier | Download Open Data | ||||
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fig 3 & 4 | The experimentally observed count, N(m;A), for the m-tuples of spots which may be contained in a minimum enclosing circle (MEC) with diameter less than or equal to d = 8nm ( see text ). Error bars denote counts of spots with intensities over dierent critical thresholds, with signicance levels = 0:15 (higher value of error bar) to = 0:001, with the symbol at signicance level = 0:025. The shaded region indicates a best t for this observed count, assuming that individual cascades are independently generated. Again the upper and lower bounds correspond to intensity threshold signicance levels of = 0:15 and = 0:001. 10-6 The main result of this letter, the tted distribution for the number of visible spots generated in individual primary damage cascades. Error bars denote counts of spots with intensities over dierent critical thresholds, with signicance levels = 0:15 (higher value of error bar) to = 0:001, with the symbol at signicance level = 0:025. Only the assumption of independent ( non-overlapping ) individual cascades is used for this tting. The shaded region indicates a possible alternative t (using the same threshold intensities for sampling the spots), with the additional assumption that the number of radiationinduced defect clusters produced in each cascade is Poisson distributed. per MEC, ie N(m;A), gives the shaded region in gure 4. This appears to be a good approximation for the best t we were able to produce. We should stress that coin- cidence of these results should not imply causality - we have not proved here that visible defects are produced in- dependently within individual cascades, only that the ex- perimental evidence we have gathered is not inconsistent with this model. Our analysis here is two-dimensional, based on the ex- pected count of spots in a circular area. The three- dimensional nature of the cascade damage becomes rel- evant if there is a chance | CD/18/316 | Download | ||||
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