Radiotherapy treats cancer by directing beams of high energy x-rays at the tumour.
Getting the right amount of radiation is a fine balance between therapy and harm. A common way to improve the benefit-to-cure ratio is to fire multiple beams at the tumour from different directions.
A study found children are at greater risk of developing later cancers from radiation from CT scans.
In a recent study of almost 11 million young Australians, we showed those exposed to a CT scan before the age of 20 had a small increase in cancer risk in the years after exposure.
In the early stage of Hodgkin’s Lymphoma the disease is curable in more than 90% of the cases.
The incidence of Hodgkin's lymphoma in Kenya isn't known, but new information is emerging to shed light on its prevalence.
Some say cancer-causing chemicals can leak into packaging and into your food.
There is no evidence supporting claims that cooking or heating food in the microwave can give you cancer or food poisoning.
Pocket your phone without worry.
Phone image via www.shutterstock.com.
Did your holiday gift list include radiation-shielding undies to protect your privates from cellphone radio waves? A radiation expert explains they're unnecessary – your phone won't affect your fertility.
Drink image via www.shutterstock.com.
Back in the early 1900s, if you felt a bit sluggish you could reach for a beverage enhanced with radioactive elements to really add some pep to your step. It wouldn't be a healthy choice, though.
‘A-Day’ marked the first of 23 atomic bomb explosions at Bikini.
Department of Energy
In the summer of 1946, the U.S. government detonated the first of many atomic bomb tests in the Marshall Islands. Seventy years of radiation exposure later, residents are still fighting for justice.
Tim Peake, Yuri Malenchenko and Tim Kopra are about to return to Earth after a six-month stay at the ISS.
In theory, astronauts get the equivalent of a lethal x-ray dose during a six-month stay at the ISS. Here's why we don't have to worry too much though.
There is still no firm evidence that mobile phones cause cancer.
Don't throw away your phone quite yet. There are a lot of unanswered questions surrounding the latest study that found a connection between mobile phones and cancer.
Australia could take spent fuel from nuclear power stations overseas. This one is in South Korea.
South Australia's Nuclear Fuel Cycle Royal Commission has recommended a nuclear waste site for the state.
Radiation exposure as a child can increase cancer risk later in life. But by how much?
Chernobyl is already responsible for up to 5,000 cases of cancer in Europe.
After one reactor at the Chernobyl nuclear power plant caught fire and exploded in 1986, the whole site was encased in a concrete sarcophagus.
The meltdown at the Chernobyl Nuclear Power Plant in 1986 exposed 572 million people to radiation. No other nuclear accident holds a candle to that level of public health impact.
Pripyat is often portrayed as a haunted ghost town.
EFREM LUKATSKY / AP/Press Association Images
Chernobyl's liquidators have come up with some intriguing ways of dealing with what they've gone through – without directly confronting painful memories.
A breast cancer patient undergoes radiation treatment at a hospital in Honduras in 2012.
Researchers believe that combining immunotherapy with traditional therapies such as radiation could open up new possibilities for cancer treatment.
Greg Webb / IAEA/Flickr
Estimating health impacts after a nuclear accident is more complicated than you might think.
Elementary school students about 13 miles from the Fukushima Daiichi nuclear power plant walk past a geiger counter in 2012.
Remediation will never get radiation to zero in the area affected by the 2011 meltdown at the Fukushima-Daiichi nuclear power plant. Rather than safety, the conversation should focus on acceptable risk.
There is no firm evidence that mobile phone radiation causes us harm.
ABC's Catalyst episode "Wi-Fried" claimed that mobile phones and Wi-Fi might be a cancer risk, but the leading experts are not so convinced.
Polonium is found naturally in uranium ore.
Polonium's chemical properties made it the ideal secret weapon for the assassins of Alexander Litvinenko.
A solar water heating unit on the roof of a home in Kuyasa outside Cape Town. South Africa has a long way to go to get people off the grid and onto solar heating.
Africa is blessed with an abundance of sunshine.Given the heavy demand for energy, alternatives, such as solar, could provide solutions and help stimulate economic growth.
The average age of survivors is now 80. In five years, very few of these first-hand witnesses will be around to remember the event. Many of their stories are in danger of being lost forever.