nuklear sains dan nuklear fizik

aarie

i heard there was this 'Big-Bang' when they switched on the LHC last year and everything went quiet...
it was not me...

i'm into knowledge... in europe regularly but not working in CERN..

mbhcsf

Originally posted by aarie at 6-6-2009 12:18
i heard there was this 'Big-Bang' when they switched on the LHC last year and everything went quiet...
it was not me...

i'm into knowledge... in europe regularly but not working in  ...

laaah.....i thought it must be you.....

mbhcsf

Originally posted by aarie at 6-6-2009 12:18
i heard there was this 'Big-Bang' when they switched on the LHC last year and everything went quiet...
it was not me...

i'm into knowledge... in europe regularly but not working in  ...

of which disciple that is ya?( if i may ask)
yeah , heard  that too . unsure now what is the outcome of the project though....

aarie

haritu kata spring.. baru ni announce autumn pulak... tungguuuuuuuuu...

cepheid

apasal korang buat rancangan selingan LHC kat sini pulak. Itu more towards research in particle physics and it should be known as particle collider

aarie

hadron bcoz it accelerates protons or ions, which are hadrons as compared to leptons..

end of last year, 28 proton treatment facilities were operating worlwide, over 70,000 patients benefitted from them... none in m'sia yet..
nuclear medicine can be very interesting.. especially with current development in particle therapy..

cepheid

yes i know about that. by the way, there is LHC thread somewhere here.

by the way, the accelerator that used in medicine is far smaller than LHC.

if energy of a proton/any nuclei exceed more than 1 GeV, it will become high energy physics which is particle physics but this you need to learn quantum mechanics and nuclear physics before you extend the knowledge in particle physics

[ Last edited by  cepheid at 8-6-2009 00:46 ]

mbhcsf

Originally posted by aarie at 7-6-2009 23:56
hadron bcoz it accelerates protons or ions, which are hadrons as compared to leptons..

end of last year, 28 proton treatment facilities were operating worlwide, over 70,000 patients benefitted ...

so tell me more about particle therapy then ..as it is very interesting, indeed.

mbhcsf

so in a way i think this posting is good as it can widen the topic,actually.

aarie

proton maximum dose just before maximum penetration as compared to photons and electrons
thus reducing damage to surrounding tissue, the primary problem in radiation therapy.....

mbhcsf

Originally posted by aarie at 9-6-2009 15:29
http://upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Depth_Dose_Curves.jpg/564px-Depth_Dose_Curves.jpg

proton maximum dose just before maximum penetration as compared to photons and electr ...

will there be any relationship between well i dunno the mass of the subatomic particles and the a) size? area of tissue damage
b) the therapeutic effect exerted by the tissue
c) penetration - the depth of it?

arasham

baca je dan cuba memahami apa yg korang bualkan
berterimakasih sangat pada yg beri pandangan ni. hopefully
dia boleh teruskan cita-citanya dan harap sgt lawatan najib ke korea
ari tu jadi titik tolak positif tuk bidang ni di malaysia

mbhcsf

Originally posted by arasham at 11-6-2009 10:10
baca je dan cuba memahami apa yg korang bualkan
berterimakasih sangat pada yg beri pandangan ni. hopefully
dia boleh teruskan cita-citanya dan harap sgt lawatan najib ke korea
ari tu jadi t ...

Kalau begitu Puan it would be nice from now, for her to

a) to set the right intention ( someone important told me this)
b) the right thinking  for learning
c) the right attitude for learning
d) Know how to get there and be good at it

e) Balik dan contribute kat Malaysia - ilmu tu ..insya ALLAH.
Bless her.

saden

belajar je apa yg dia minat... we need all kinds of knowledge in malaysia.

pasal kerja tu..banyak.. kalau kita jadi pakai nuclear power lagi banyak peluang kerja (tapi ni lebih nuclear engineering, bukan nuclear physics).

anyway, take a very long view la... kebanyakan orang akan bertukar2 career... degree kimia, start keje dgn BASF, lepas 5 tahun keje dgn shell pulak tapi bukan sebagai chemist, tapi jadi project manager ke... lepas 5 tahun keje dgn Babcock Wilcox pulak jadi consultant.... hilang dah degree kimia dia tu.... background nuclear physics + experience kerja tu akan laku di banyak tempat.

aarie

a) dose to healthy tissue b4 and beyond the target volume i.e tumor is lesser for proton thus less damage
b)highest dosage just b4 max penetration i.e at target volume thus most damaging to tumor for proton
c)photon and electron will penetrate infinitely(?) which is bad for healthy tissue, wherelse proton will loose all energy just after the bragg peak at the tumor, safer for everybody.