A 90-year-old helium reservoir in Texas could shut down next month, causing disruptions and raising costs for makers of high-tech products from magnetic resonance imaging (MRI) scanners to semiconductors, and threaten medical treatments and research.
More than 100 organizations, universities and companies, including Siemens, Philips, Samsung and General Electric, wrote to the US Congress last week urging it to keep the reservoir open or risk a disruption to the US economy, putting millions of jobs at risk.
Helium, best known as a party gas for filling balloons and making the voice squeaky, is also needed for aerospace and defense industries as well as smartphones, flatscreen TVs, medical equipment and deep-sea diving tanks.
The gas, which is the second-most abundant element in the universe, is difficult to capture and store, making the US reservoir a vital source.
The US Federal Helium Reserve has been providing about a third of global crude helium and 40 percent of US supply. However, this will be turned off after Oct. 7 unless Congress acts to extend its life.
The reserve near Amarillo in Texas was opened in 1925 as a supply of helium for airships and it then provided helium in the Cold War and the Space Race.
By 1995 the reserve was US$1.4 billion in debt as a result of earlier purchases of helium from private producers. The debt is due to finish being repaid to the US Treasury by the end of this month and under current law, funding to the federal program will then stop, terminating operations.
Congress would have to amend the law or pass new legislation to keep the reserve going.
Helium refiners have already been raising prices in anticipation of its closure.
GE Healthcare, which uses helium to make MRI scanners, said the spot price of liquid helium has jumped to US$25 to US$30 per liter fro US$8 last year.
“There is no question the situation is challenging. We are having to look at different sources of helium, not just the US supply, and have invested US$17 million in a plant to capture waste helium,” said Richard Hausmann, president and chief executive of GE Healthcare’s global Magnetic Resonance business.
The firm uses about 5.5 million liters of helium a year in its production facility in South Carolina and another 6 million liters a year servicing MR systems at US sites.
Using other gases instead can result in poorer quality goods or require costly and unproven refitting of processing or manufacturing machinery.
“If supplies were disrupted for a significant period it could even impact the overall economy,” Rodney Morgan, vice president of procurement at computer memory manufacturer Micron Technology, told a hearing of the US House Committee on Natural Resources earlier this year.
Helium remains liquid at extremely low temperatures, making it ideal for cooling superconducting magnets used in electronics manufacturing and in magnetic resonance imaging (MRI) machines that help to diagnose diseases.
The cost of helium already makes up to 30 to 40 percent of research budgets, so further price rises could be crippling.
Some university research projects in Britain were put on hold and brain-scanning equipment was shut down last year due to a helium shortage.
Helium is a byproduct of natural gas production, but once it is released into the atmosphere it cannot be captured. Demand for helium has risen, driven particularly by Asia’s booming manufacturing industry.