How do you calculate curie to becquerel?
The becquerel succeeded the curie (Ci), an older, non-SI unit of radioactivity based on the activity of 1 gram of radium-226. The curie is defined as 3.7×1010 s−1, or 37 GBq. Conversion factors: 1 Ci = 3.7×1010 Bq = 37 GBq.
How do you convert curies to Grams?
Calculate the value in curies by dividing the decay rate per second by 3.7 x 10^10, the decay rate equal to 1 curie. For example, 1 gram of Cobalt-60 is equivalent to 1,119 curies because 4.141 x 10^13/ 3.7 x 10^10 = 1,119 Ci.
How many Curies does Bq have?
As such, 1 Bq represents a rate of radioactive decay equal to 1 disintegration per second, and 37 billion (3.7 x 1010) Bq equals 1 curie (Ci).
What is a curie equal to?
As such, 1 Ci is equal to 37 billion (3.7 x 1010) disintegrations per second, so 1 Ci also equals 37 billion (3.7 x 1010) Bequerels (Bq). A curie is also a quantity of any radionuclide that decays at a rate of 37 billion disintegrations per second (1 gram of radium, for example).
What did becquerel and curie discover?
They figured out how to measure the intensity of the radioactivity, and soon found other radioactive elements: polonium, thorium and radium. Marie Curie coined the term “radioactivity” to describe the new phenomenon.
How many becquerels are there in Chernobyl?
On April 26, 1986, a serious reactor accident occurred at the Chernobyl nuclear power plant. A total radioactivity of 2 x 10(18) becquerel, i.e. 3.5% of the reactor inventory were released spreading throughout Europe.
How many Curies is fatal?
Ingesting even small quantities of some particulate emitting radionuclides may be fatal. For example, the median lethal dose (LD-50) for ingested polonium-210 is 240 μCi; about 53.5 nanograms….Curie (unit)
| Curie | |
|---|---|
| Unit of | Activity |
| Symbol | Ci |
| Named after | Pierre Curie |
| Conversions |
How many Curies are in a REM?
Conversion Equivalence
| 1 curie | = | 3.7 x 1010 disintegrations per second |
|---|---|---|
| 1 rem | = | 0.01 sievert (Sv) |
| 1 roentgen (R) | = | 0.000258 coulomb/ kilogram (C/kg) |
| 1 megabecquerel (MBq) | = | 0.027 millicuries (mCi) |
| 1 gray (Gy) | = | 100 rad |
How many curies of radiation is safe?
Adult: 5,000 Millirems. The current federal occupational limit of exposure per year for an adult (the limit for a worker using radiation) is “as low as reasonably achievable; however, not to exceed 5,000 millirems” above the 300+ millirems of natural sources of radiation and any medical radiation.