Mikakadu
Student
- Aug 25, 2023
- 4
0
I need to fix a leak on the inside of a liquid nitrogen dewar which acts as the coolant tank for a spectroscopy CCD camera. Due to the design of the camera, I unfortunately can only access the inside of the dewar via its bottleneck. Since the dewar is permanently connected to the camera body, the only idea I could come up with is spraying the inside with a material that hardens afterward, hoping to hit the leak in the process and therefore sealing it while also not depositing too much material. I roughly sketched the idea.
Let's suppose the dewar is made out of aluminum. Which material would be suitable to be sprayed onto the inside, adhering well to the aluminum after hardening and can be expected to withstand rapid temperature changes and low temperatures (-200 °C) over long periods of time?
Side note: I know this idea is sketchy, but we need to get this camera back running as soon as possible and are already working on replacing it in the near future.
I need to fix a leak on the inside of a liquid nitrogen dewar which acts as the coolant tank for a spectroscopy CCD camera. Due to the design of the camera, I unfortunately can only access the inside of the dewar via its bottleneck. Since the dewar is permanently connected to the camera body, the only idea I could come up with is spraying the inside with a material that hardens afterward, hoping to hit the leak in the process and therefore sealing it while also not depositing too much material. I roughly sketched the idea.
Let's suppose the dewar is made out of aluminum. Which material would be suitable to be sprayed onto the inside, adhering well to the aluminum after hardening and can be expected to withstand rapid temperature changes and low temperatures (-200 °C) over long periods of time?
Side note: I know this idea is sketchy, but we need to get this camera back running as soon as possible and are already working on replacing it in the near future.
