Low Temperature 25 Conference

December 24th, 2008 by yudhiakto pramudya

On Summer 2008, me and my supervisor attended the International Conference that held in Asmterdam, Netherland. The tittle is Low Temperature 25th Conference.  It was starting from August 6th till August 13th. It’s so very wonderful experience for me since in this conference we can meet a lot of low temperature scientists from around the world and at least 3 generations. And, the most important thing is, we celebrated the 100th year of the liquified Helium by Heike Kamerlingh Onnes. So, we had one day excursion in Leiden.

At that conference, I presented poster about my research. The tittle is Surface excitations and partial entropy of third sound in 4He. Its theoretical calculation about contribution of surface excitation in the thermomechanical effect in the third sound 4He. My Professor presented another paper that tell about effect of point contact on the third sound resonator.

The excursion was so awesome. I went to the Onnes lab and the Museum where his apparatus to liquified helium is preserved. During the conference, there was fun session brought by students. They had some experiments in low temperature. For example, I was levitated by giant superconductor.

Amsterdam and Leiden are very beautiful city, a lot of historical places there.

Hopefully someday, I will come to the next Low Temperature conference.

Stay Cool :)

Clean the clean room

March 14th, 2008 by yudhiakto pramudya

One of the problem getting good signal of third sound is about dirt that bridge the gap of the capacitor. So, we decided to get information about dirt collection rate inside clean room. we also clean our clean room.

We have several problems in the clean room and we try to solve them.

First, there are too many stuff inside clean room. Some of them are not part of our experiment. So, we throw all those stuff that we dont need.

Second, there is hole in the clean room. Air from outside the clean room can flow in. This air may bring dust/dirt. We plug this hole with the tip.

Third, the filter of the blower has a lot of dust. So, there is not much air flow that bring dust/dirt to the floor. So, we clean the filter.