[hyperion2010]

Here's the doi for that paper: doi:10.1016/j.radphyschem.2015.07.003

Unfortunately I could only find the paywalled version here: http://www.sciencedirect.com/science/article/pii/S0969806X15...

[Wingman4l7]

The subreddit /r/scholar or the Twitter hashtag #icanhazPDF can help out.

[M2Ys4U]

Try putting the DOI into sci-hub.io