Clearly? The actual article (here's a full text: http://www.fraw.org.uk/data/esmog/lerchl_2015.pdf) doesn't seem to show that clear link. First, there's no dose-response effect, mice with higher doses didn't present higher rates of cancer (sometimes lower). Also, Table 1 with the actual findings is just crazy. For example, the group with no radiation has the second-highest incidence of lung carcinoma. The rate of lymphoma is the same at 0W/kg and 2W/kg, but doubles at 0.4W/kg.
I'm not going to say that the article is trash because it doesn't seem to be, but it is definitely not a clear link, there is a lot unanswered there. There is no mechanism proposed, there are a lot of carcinomas studied (high probability of finding something with a correlation) and there is no dose-response effect.
Here's a longer list for you: https://www.sciencedirect.com/science/article/pii/S138357421... though a lot of those studies are about DNA damage and not cancer per se. Though DNA damage is known to increase cancer risk.
So no, not zilch, not at all.