domingo, 2 de agosto de 2015

Marie Curie

RADIOLOGY AT THE FRONT

Three German bombs fell on Paris on September 2, 1914, about a month after Germany declared war on France. By that time construction of the Radium Institute was complete, although Curie had not yet moved her lab there. Curie's researchers had been drafted, like all other able-bodied Frenchmen.

The Radium Institute's work would have to wait for peacetime. But surely there were ways in which Curie could use her scientific knowledge to advance the war effort.

As the German army swept toward Paris, the government decided to move to Bordeaux. France's entire stock of radium for research was the single gram in Curie's lab. At the government's behest, Curie took a Bordeaux-bound train along with government staff, carrying the precious element in a heavy lead box. Unlike many, however, Curie felt her place was in Paris. After the radium was in a Bordeaux safe-deposit box, she returned to Paris on a military train.

X-rays could save soldiers' lives, she realized, by helping doctors see bullets, shrapnel, and broken bones. She convinced the government to empower her to set up France's first military radiology centers. Newly named Director of the Red Cross Radiology Service, she wheedled money and cars out of wealthy acquaintances.

She convinced automobile body shops to transform the cars into vans, and begged manufacturers to do their part for their country by donating equipment. By late October 1914, the first of 20 radiology vehicles she would equip was ready. French enlisted men would soon dub these mobile radiology installations, which transported X-ray apparatus to the wounded at the battle front, petites Curies (little Curies).

Although Curie had lectured about X-rays at the Sorbonne, she had no personal experience working with them. Intending to operate the petite Curie herself if necessary, she learned how to drive a car and gave herself cram courses in anatomy, in the use of X-ray equipment, and in auto mechanics. As her first radiological assistant she chose her daughter Irène, a very mature and scientifically well-versed 17-year-old. Accompanied by a military doctor, mother and daughter made their first trip to the battle front in the autumn of 1914.

Would Irène be traumatized by the sight of the soldiers' horrific wounds? To guard against a bad reaction, Curie was careful to display no emotion herself as she carefully recorded data about each patient.

Irène followed her mother's example. Heedless of the dangers of over-exposure to X-rays, mother and daughter were inadequately shielded from the radiation that helped save countless soldiers' lives. After the war the French government recognized Irène's hospital work by awarding her a military medal. No such official recognition came to Curie. Perhaps her role in the Langevin affair was not yet forgiven.

A MILITARY RADIOTERAPHY SERVICE

Curie knew she needed more trained personnel. She and Irène could not run by themselves the 20 mobile X-ray stations she had established, nor the 200 stationary units. By 1916 Marie began to train women as radiological assistants by offering courses in the necessary techniques at the Radium Institute. She was assisted by Irène, who was also enrolled as a student at the Sorbonne.

Her radiological services well under way, Curie turned her attention to establishing a military radiotherapy service. By 1915 it seemed likely that the Germans could not take Paris. After retrieving the gram of radium from Bordeaux, Curie began to use a technique pioneered in Dublin to collect radon - a radioactive gas that radium steadily emits. Working alone, without protecting herself adequately from the radioactive vapors, she used an electric pump to collect the gas at 48-hour intervals. She sealed the radon in thin glass tubes about one centimeter long, which were delivered to military and civilian hospitals. There doctors encased the tubes in platinum needles and positioned them directly within patients' bodies, in the exact spot where the radiation would most effectively destroy diseased tissue.

Should she hand over her medals to the government? In addition to the contributions to the war effort that Curie could make as a scientist, she was also an ordinary citizen. When the government asked people to contribute their gold and silver, Curie decided to offer her two Nobel medals, along with all the other medals bestowed on her over the years. The French National Bank turned down the offer, but Curie did her part by using most of the Nobel prize money to buy war bonds.

The war ended on November 11, 1918, but Curie's war-related work continued for nearly another whole year. During the spring of 1919 she offered radiology courses to a group of American soldiers who remained in France while awaiting passage home. That summer she summarized much of her wartime work in a book titled Radiology in War. By the fall of 1919 her laboratory at the Radium Institute was finally ready. She would devote most of the rest of her life to it.


Fonte:
http://www.aip.org/history/curie/war1.htm

Mais:
http://www.lefigaro.fr/histoire/marie-curie-la-radiologie-et-la-grande-guerre-1914.php
http://docs.google.com/file/d/0BxwrrqPyqsnIUThzVTc3NS1UcWc