TRT.IONG
DH
Stt
PHAM
TP.HCM
KHOA
vAr
Lf
K3
a-
KrEM
rRo
5nlTHuc
Hec
puAN
@in
l;
M6n:
phan
ting
h4t
nh6n
Lcrp:
Cri
nhan
4
Thoi
gian:
90
phrit
Bii
rd
co
th€
"ria
rrai
nhan
h;t;*;.
^^'
Bni
3:Ti6tdiQn
phin
ftnS
(2
tti6m)
:
ri€tdiQn
plin
rfrng (2
rli6m)
, bi\
Yt"uj*"1,11 :!"
plf
uyg
@'!
khi
chi6u
chum
neutron
nhiQt
len
liQu
thgc
nghiQm
titit
dign
toan phAn
cria
tuong
t6c
nz3s(J
duoc
cho
trong
hinh
sau
Bdri
2:
Cric
dinh
tuar
bllo
toin
(3
tti6m)
c6c
kh6i pho-t<ti
(mass
spectrometer)
dang-lQch
kh6ng
tmg'
Xdt
.*o1in
.q-nhi;eild;^
)G,"tio-,trong
d6
A.*
rdnhan
s.ng
'gdrr
c:irr
riic
dinh
khdi
lusns.
Ta
c6
th6
x6c
rrinh
kt'oir"qne
",i;;;il;h€nh
rQch
kh6i
ruqng
AE
=
(mn
-
mn
ta
s€
x6c
dinh
khoi
lu.qn8
ctn
A*.
sri
dsng
iic.,
,t.'r"
o;i;""*
tloi
ti'h
ch.
cl6ng
ndng
c6c
h4t
li€n
guil,
hay
ddn
ra
c6ng
thric
tr6n.
;-'E
vrvu
toan
pnan
mri
AO
o,,*
=9x1036. H6y
su
dgng
th6ng
tin
ndy
d6
tinh
c6c
tlQ
rQng
ri€ng
phAn
l,,lrd6i
vOi
c6c
ph6n
rd
R -+
n+23"
(J.
vd
R
+
y
xa
cta
c6c
neutron
s6ng
s,
vd
(tl")'
=
3,894.10-32
GbV2
m,
;
fii,c,
=
0,9396Ge
V
Kinc{ir
crun-r.',,
.,rn,li
l,u
n,o.r'ui'],.n.,,.,
I
nt'
Hinh;
Ti€t
di€n
todn
phin
c,h<.t
thich
gi
thhm.
?l)
t{)
t(.x.)
lJo
bAyJ*OV