The British conducted testing in the Pacific Ocean at Malden Island and Kiritimati known at the time as Christmas Island (not to be confused with Christmas Island in the Indian Ocean) between 1957 and 1958.[2] These were airbursts mostly occurring over water or suspended a few hundred metres above the ground by balloon.[2]
In Australia there were three sites. Testing was carried out between 1952 and 1957 and was mostly done at the surface.[2] A few hundred smaller scale tests were conducted at both Emu Field and Maralinga between 1953 and 1963.[3]
Monte Bello Islands
Two separate atomic test projects occurred at the islands, the first being Operation Hurricane and the second being Operation Mosaic. Following the second Mosaic explosion, the radioactive cloud that was supposed to be taken away from the site, was sent back by wind that was not anticipated by the British scientists.[4]
The atomic tests at Emu Field in 1953 were known as Operation Totem. The test site of Emu Field was abandoned just hours after the second and final test, Totem 2.
A testing site at Maralinga was established in 1955, close to a siding along the Trans-Australian Railway. Because supplies could be brought to the site via rail, it was preferred over Emu Field. A total of seven major tests were conducted at Maralinga. Both the Federal government and Australian newspapers at the time were very supportive of the tests.[6] In 1952, the Liberal Government passed legislation, the Defence (Special Undertakings) Act 1952, which allowed the British Government access to remote parts of Australia to undertake atmospheric nuclear weapons tests. The general public were largely unaware of the risks from the testing program, stemming from official secrecy about the testing program and the remote locations of the test sites.
Before the tests could begin the Maralinga Tjarutja, the traditional Aboriginal owners of the land, were forcibly removed.[7]
An air base at Woomera, 570 km away, which had been used for rocket testing, was initially used as a base from which planes were flown for testing of the bomb clouds.[7]
According to Liz Tynan from James Cook University, the Maralinga tests were a striking example of extreme secrecy, but by the late 1970s there was a marked change in how the Australian media covered the British nuclear tests. Avon Hudson, an atomic veteran who participated as an Australian serviceman during the later stage Minor Trials became a prominent whistleblower. Some resourceful investigative journalists emerged and political scrutiny became more intense.[8] In June 1993, New Scientist journalist Ian Anderson wrote an article entitled "Britain's dirty deeds at Maralinga" and several related articles.[9]
Minor Trials
Over a decade, 1953 to 1963, a series of "Minor Trials" occurred testing components of the Atomic and Hydrogen Bombs using in some instances radioactive and toxic materials, such as Plutonium, Beryllium, and Uranium. Most of the minor trials involved conventional explosions to map out the radioactive dispersion and contamination of military assets, building structures and early crash test dummies. The Minor Trial of Vixen A dispersing Plutonium over a wide area by conventional explosive was considered to have had the longest half-life of any test or trial conducted in Australia.
Minor trials name, location and radioactive material
Year
Location
Trial
Material
Quantity (kg)
1953
Emu Field
Kitten
Beryllium
0.036
1955
Naya 3
Tims
Uranium
13.8
1955
Naya
Kittens
Uranium
5
1955–1957
Naya
Kittens
Beryllium
0.75
1955–1957
Kittens area
Kittens
Uranium
120
1956–1960
Kuli TM4
Tims
Uranium
6605
1956–1958
Naya 1
Rats
Uranium
151
1957
Naya
Tims
Beryllium
1.6
1957
Naya 3
Kittens
Uranium
23.4
1957
Wewak
Vixen A
Uranium
67.8
1957
Dobo
Rats
Uranium
28
1957
Taranaki
Vixen B
Uranium
25
1959
Wewak VK33
Vixen A
Plutonium
0.008
1959
Wewak VK29
Vixen A
Beryllium
0.14
1959
Wewak VK28
Vixen A
Beryllium
0.25
1959
Wewak VK27
Vixen A
Beryllium
0.27
1959
Wewak VK30
Vixen A
Beryllium
0.1
1959–1960
Kuli TM11
Tims
Beryllium
26.2
1959–1960
Kuli TM11
Tims
Uranium
67
1960
Naya TM100
Tims
Plutonium
0.6
1960–1962
Naya 2
Kittens
Uranium
32
1960–1961
Kuli TM16
Tims
Beryllium
39
1961
Kuli TM50
Tims
Uranium
90
1961
Naya TM101
Tims
Plutonium
0.6
1961
Wewak VK60A
Vixen A
Plutonium
0.294
1961
Wewak VK60C
Vixen A
Plutonium
0.277
1961
Wewak 60A
Vixen A
Beryllium
1.72
1961
Wewak 60B
Vixen A
Beryllium
1.72
1961–1963
Taranaki
Vixen B
Beryllium
17.6
Opposition
Opposition to the tests grew throughout the 1950s. A poll in 1957 found that almost half the population was against them.[10]
Health Effects
The British Nuclear Test Veterans Association (BNTVA) was set up in 1983 to gain recognition and restitution for personnel who took part in British and American tests in Australia.[11]
Veterans have claimed that they were treated as 'human guinea pigs' and that lives have subsequently been ruined as the testing had negative medical effects that last for generations, including cancers and children born with disabilities and genetic defects. The veterans disagree with the Ministry of Defence that there is no correlation between health effects and the tests, and that “no information is withheld”.[12]