Patent Number: 
Section: claims

1. A system for monitoring a black cell environment, the system comprising:a vessel disposed within the black cell environment and configured to store a mixed substance;a tubing extended from outside of the vessel to inside of the vessel; anda cable disposed within a lumen of the tubing, wherein at least a portion of the cable is disposed within a portion of the tubing located inside of the vessel. 2. The system of claim 1, wherein the mixed substance comprises a radioactive sub stance. 3. The system of claim 1, wherein the vessel comprises a pulse jet mixer. 4. The system of claim 1, wherein the tubing comprises a first end and a second end, wherein both the first end and the second end of the tubing are disposed outside of the vessel. 5. The system of claim 1, wherein a first end of the tubing is disposed inside of the vessel and a second end of the tubing is disposed outside of the vessel. 6. The system of claim 1, wherein the cable comprises a sensor. 7. The system of claim 6, wherein the sensor comprises Fiber Bragg Gratings. 8. The system of claim 6, further comprising a computing device coupled to at least one end of the cable and configured to retrieve sensor data from the sensor. 9. The system of claim 8, wherein the sensor data comprises at least one of temperature data, vibration data, and pressure data. 10. The system of claim 9, wherein the computing device is further configured to generate a three-dimensional profile of a condition of the mixed substance inside the vessel based on the at least one of temperature data, vibration data, and pressure data. 11. The system of claim 1, wherein the cable is disposed in a spiral pattern inside the lumen of the tubing. 12. The system of claim 1, wherein a lumen of the vessel is sealed from an external environment and wherein the lumen of the tubing is sealed from the lumen of the vessel. 13. The system of claim 1, wherein the lumen of the tubing is sealed from the black cell environment. 14. A method of replacing a sensor in a black cell environment comprising a sealed vessel and a tubing that extends from the outside of the sealed vessel to the inside of the sealed vessel such that a first portion of the tubing is disposed inside the sealed vessel and a second portion of the tubing is disposed outside of the sealed vessel, wherein a first cable comprising a first sensor is disposed within a lumen of the tubing, the method comprising:removing the first cable from the tubing; andinserting a different second cable comprising a second sensor into the tubing such that the second sensor is disposed within the lumen of the first portion of the tubing. 15. The method of claim 14, wherein the vessel comprises a mixture of radioactive sub stance. 16. The method of claim 14, further comprising retrieving sensor data from the first sensor. 17. The method of claim 16, wherein the sensor data comprises at least one of temperature data, vibration data, and pressure data. 18. The method of claim 17, further comprising generating a three-dimensional profile of a condition of the mixed substance inside the vessel based on the at least one of temperature data, vibration data, and pressure data retrieved from the first sensor. 19. The method of claim 14, further comprising detecting a malfunction of the first sensor. 20. The method of claim 19, wherein the first cable is removed from the tubing in response to the detecting of the malfunction of the first sensor. 21. The method of claim 14, wherein inserting the second cable comprises blowing the second cable into the lumen of the tubing. 22. The method of claim 14, wherein inserting the second cable comprises attaching a pig to an end of the second cable. 23. A method of installing a sensor in a vessel comprising a tubing that extends from the outside of the vessel to the inside of the vessel such that a first portion of the tubing is disposed inside the vessel and a second portion of the tubing is disposed outside of the vessel, the method comprising:inserting a cable comprising a sensor into the tubing such that the sensor is disposed within a lumen of the first portion of the tubing. 24. The method of claim 23, wherein inserting the cable comprises blowing the cable into the lumen of the tubing. 25. The method of claim 23, wherein inserting the cable comprises attaching a pig to an end of the cable. 26. The method of claim 23, wherein the cable is a fiber optic cable. 27. The method of claim 23, further comprising retrieving sensor data from the sensor. 28. The method of claim 27, wherein the sensor data comprises at least one of temperature data, vibration data, and pressure data. 29. The method of claim 28, further comprising generating a three-dimensional profile of a condition of the mixed substance inside the vessel based on the at least one of temperature data, vibration data, and pressure data retrieved from the sensor. 30. The method of claim 23, further comprising attaching a pig to an end of the cable. 31. The method of claim 30, wherein inserting the cable comprises blowing the pig into the lumen of the tubing.