Valentin Alekseevich Borisevich

Valentin Alekseevich Borisevich was a nuclear physicist and director of the Institute for Nuclear Energy of the Belarusian Academy of Sciences. In his testimony, scientific expertise brings the Chernobyl disaster into view before official explanations can contain it: abnormal readings identify a reactor accident, measurements expose contamination in ordinary food and daily surroundings, and a physicist’s warnings meet a political system organized around secrecy and obedience. His account also records a more intimate rupture. The catastrophe discredits not only nuclear power but the faith in physics that had shaped his youth and professional life.

Identity and scientific formation

Borisevich describes himself as someone who had long kept a record of events. He wrote down what happened in the streets when Stalin died, and began documenting Chernobyl from its first day because he expected time to erase people’s words and feelings. His friends, many of them nuclear physicists at the center of events, later forgot what they had felt and said; his notes preserved what memory could not reliably hold.

His devotion to physics began in adolescence. He was seventeen in 1945, loved science fiction, and imagined nuclear energy as a means of reaching other planets. He enrolled at the Moscow Energy Institute and studied in its secretive nuclear-energy department. In the 1950s and 1960s, he recalls, physicists occupied an elite position, while the humanities were pushed aside. Secrecy itself intensified the prestige: nuclear science promised both immense power and access to knowledge withheld from the rest of society. For Borisevich, physics was not merely a career but the promise and religion of an era.

Recognizing the accident

On the morning when the danger began to register at his institute, Borisevich arrived at work in spring weather and opened a window. The blue jays he had fed through the winter with pieces of salami were absent. Inside, the instruments were already reporting a crisis: activity on the air-cleaning filters had risen to two hundred times its usual level, and the radiation reading near the entrance approached three milliroentgen per hour, a level considered the maximum allowable for work in a radioactive zone for six hours.

The first explanations tested at the institute did not fit the evidence. A possible failure in a heat-generating element proved unfounded; a damaged container from the radiochemical laboratory would have suggested a localized spill, not the pattern they were observing. An internal announcement then advised staff not to leave the building. The dosimetrists found that Borisevich’s desk, clothes, and office walls were contaminated. He washed his hair over a sink and checked the instrument again, but the readings pointed beyond a problem with his own room.

The nearby Ignalinsk nuclear plant was also registering extreme readings. When the institute called Chernobyl, nobody answered. By lunchtime, the staff learned that a radioactive cloud was over Minsk. The activity was iodine, evidence that the accident had occurred at a reactor. At 3:30 p.m., they learned that there had been an accident at the Chernobyl reactor. The institute bus returned to Minsk in a silence shaped by fear and by the Party cards its passengers carried.

Measurements, warnings, and secrecy

Borisevich’s account of fieldwork makes the danger concrete in places where ordinary life continued. In the forest, background radiation measured five to six times higher than on roads or fields, while high doses were widespread. In several villages, thyroid activity among adults and children reached one hundred to three hundred times the allowable level. Children still played in a sandbox; farms still worked their plots. Tests found radioactive breast milk, and food in village stores lay uncovered beside clothes. A salami and an egg examined by X-ray images were not, in his assessment, food but radioactive byproducts.

The measurements did not automatically become public warnings. Borisevich describes supervisors instructing staff to take readings and watch television while Mikhail Gorbachev reassured viewers that immediate measures had been taken. In his account, this gap between what the instruments showed and what officials said was reinforced by a long-standing habit of trust. The scientific evidence was present, but the people who possessed it had been trained to believe in the institutions that controlled its circulation.

Borisevich tried to reach Nikolai Slyunkov, the head of the Communist Party of Belarus, through a government telephone line. Calls were blocked whenever he began discussing the accident. After about two hours, he got through and warned that the radioactive cloud was moving toward Belarus. He urged immediate iodine prophylaxis and evacuation of everyone near the station, including animals, to a distance of one hundred kilometers. Slyunkov replied that he had already received reports of a fire and had been told it was out. When Borisevich later met him, the official challenged the institute’s dosimeter work as a source of public alarm and cited assurances from Moscow that conditions were normal.

From evidence to resistance

Borisevich continued sending official reports, maps, and figures through the chain of command after officials stopped receiving him in their offices. He assembled four folders of 250 pages each, made two copies, kept one at the institute, and had his wife hide the other at home. When he returned from a trip, the institute copies had disappeared. He nevertheless kept writing and speaking out, while the institute continued making trips into the affected area and produced the first map of contaminated zones; the entire south was marked red.

The pressure became direct. Authorities confiscated the institute’s radiation-measuring equipment without explanation, and threatening calls came to Borisevich’s home. The conflict was therefore not simply between a correct scientist and an uninformed administration: the instruments, reports, and channels of communication needed to establish and circulate facts were themselves restricted. Borisevich attributed the officials’ conduct to a system of ignorance and obedience, in which avoiding personal risk mattered more than confronting the consequences of the evidence. He also alleged that senior officials had access to iodine, protective clothing, and specially monitored food supplies while the wider population lacked such precautions; he lamented that nobody had been held accountable.

His impulse to warn extended beyond official correspondence. After learning that there was a radioactive cloud over Minsk, he called people from the city telephone directory and his family’s address books. He told them to wash their hair, close windows, take laundry off balconies and wash it again, and drink iodine correctly. His own family was part of the same urgent calculation: his daughter was out with friends after a music lesson at the conservatory, eating ice cream. He hesitated because the institute telephones were bugged and a warning might jeopardize his access to classified work, but he called his wife nonetheless. He also rebuked a nuclear-physicist friend who planned to take his young children to visit their grandparents near Gomel for the May holidays, close to Chernobyl.

The end of an era of physics

Borisevich does not present the catastrophe as a simple rejection of science. He remembers the excitement that drew him to nuclear physics: the sense that a few coins could power a station, the prestige of secret research, and the dream that nuclear energy would carry humanity into space. Even after the reactor explosion, he says, scientists arrived on special flights expecting to stay only a few hours, as if the confidence that had once elevated physics could still protect them from the consequences of a reactor accident.

Chernobyl ended that confidence. Borisevich calls it the end of the era of physics, while recognizing that the history of the atom remained bound to his generation’s youth, aspirations, and sense of meaning. In the years after the disaster, he began to want to write about the limits of science and the possibility that physicists could change the world. His testimony preserves both sides of that transformation: the trained specialist who could read danger in instruments and the former believer confronting the failure of the institutions and ideals that had taught him what science was for.