Hopp til innhold

Kategori: phd

5

Publisert 5 kommentarer til Just press "send"
It felt horrible, but I did it: I sent my extremely preliminary thesis outline to supervisor-Sunniva!
So now I just have to write the **** thing 😛 
Well, first work a little bit more on the outline, discuss with Sunniva, then write, that is... 🙂
Maybe I´ll show you when I´ve worked a little bit more on it - if you want me to? Maybe you´ll even have some good comments for me <3<3<3

Publisert Legg igjen en kommentar til Happy outline….eeehm – Monday!
It was actually good for me to have a plan last week, so I´ll continue to share my PhD plan/goal(s) of the week:

I worked more than 50 hours last week, but I didn´t get all the way to where I wanted, which was to make an outline for my thesis. Of course I do have an outline now, but it´s far from finished, and nothing I can show anyone yet - so my main goal this week is to finish and discuss it with supervisor-Sunniva (I will show her what I got, no matter how I feel about it on Wednesday, like my plan says 😉 ).
I also need to prepare the trip for Paris (experiment) next week, but the main goal is (I´m repeating, I know): OUTLINE OUTLINE OUTLINE - THESIS OUTLINE! (Yes, i think it´s difficult, and I don´t know where to start - so I change my mind all the time, and, yes, I feel insecure and stupid, and I actually started crying just before I was going to bed on Friday - had been drinking, though - but I felt like "this is something I just can´t do" :P)
Anyway; I feel much better now (I can do it!), and I just want to wish all of you a great start a new week!
PS: I want it to be hard too, because when you (I?!?) manage to do something really difficult, it´s so much more worth it  - so let´s just do this <3

5

Publisert 5 kommentarer til Parisian

Long day.

Much work.

Attended seminar about Island of stability, worked on thesis outline (I get a little bit dizzy by this - so - much - work), meeting, answering e-mails, another meeting, thinking, writing...
Tried do fix trip to Paris for an exciting experiment, but there are challenges with the dates and Alexandra and everything - hope to make it, though!

1

Publisert 1 kommentar til View of the day
This has been a looong day, in meetings aaall day (the Ludvigsen committee). However, det view was really amazing - love to be at Holmenkollen Park Hotel - it´s sort of inspiring to work in such nice facilities <3 <3 <3

We´ve had a lot of discussions today, and now my head feels both really full and empty at the same time... Luckily we´re done for today, and now it´s dinner in an hour 🙂

----------------------------------------------------------------------
- goals this week -
My main goal this week is to make an outline of my PhD thesis - wish me luck <3

2

Publisert 2 kommentarer til I have a plan…
...sort of...
I have to work on it - but I´m going with the "a not so detailed plan is better than no plan" 😉
So now I´ve told you, and then it´s so much worse if I fail; I have one month to write the first draft of my thesis, and in less than 11 months I have to submit the entire thing!
Of course I should make a better plan as soon as possible, but today was the day when I suddenly got that feeling that I just had to do it - had to get my thoughts out 😉 When I make an updated thing I´ll show you again.
Guess there are a lot of people with plans and deadlines out there; for example all high school students who are finishing high school this spring and applying for the universities - good luck to all of you!
<3<3<3

Publisert Legg igjen en kommentar til Number 18
So, in the calendar today there are gammas (gamma radiation) - I´m giving you an ALFNA matrix 😀 xD <3
The ALFNA matrix/plot is a sort of 3 dimensional plot where there is the excitation energy of some nucleus (we don´t know which one - and this is what we/I try to figure out) on the y-axis, and on the x-axis is the energy of the gamma(s) the nucleus sends out. The thing is that when a nucleus is hit by a particle, the nucleus is excited, or sort of heated - it gets some extra energy, and to get rid of that extra energy it sends out  gamma radiation. 
From earlier experiments that have been done (the bible is here) we know quite a lot about what kind of gammas (which energies) the different nuclei will emit when they are excited to this and that energy. In this particular ALFNA matrix we believe that we have oxygen-17 (there is always some oxygen 🙂 ) and beryllium-10 (the backing of the uranium foil/target is made from beryllium). The oxygen-17 peak for example, is supposed to emit a gamma ray with an energy of 870 kilo electron volts (keV), and here it is at around 1300 keV - which means that we are quite off, and everything needs to be calibrated (which is exactly what I´m working on now 😉 ).
So this is the plot I´ve been staring at today (together with my supervisor, Sunniva <3). 
...and I´m staring even more now (pretending to have a really huge brain) - looking like this 😛

Publisert Legg igjen en kommentar til Number 15
Only 8ish days ´til Christmas now...and in todays calendar is another cross-section graph - this time it´s the cross-section/probability of neutron capture on uranium-233:

On the y-axis is the value of the cross-section (the higher the number, the higher the probability of a neutron being captured by the nucleus when hitting it), and on the x-axis is the energy of the neutron.
But there are several graphs here...and they all show different values for this cross-section - the truth is that we don´t exactly know what it is (my research is into this...) :/ The blue, turqoise and red lines are the "official numbers" (evaluated nuclear data), the different dots are actual measurements (some with HUGE error bars), and the green line is calculated with the default input parameters about the nucleus.
It´s quite an important cross-section for the thorium fuel cycle, since it tells us about the probability of a neutron being captured by uranium-233 instead of making it fission (which is what we want it to do) - so it would be nice to know it better 😉