|
Volume 8, No. 1,
2015, 1436 H
|
�English
Articles |
� |
� |
|
Relativistic
Energy
and Mass
in the
Weak
Field
Limit
Within
the
framework
of the
covariant
theory
of
gravitation
(CTG),
the
energy
is
calculated
for a
system
with
continuously
distributed
matter,
taking
into
account
the
contribution
of the
gravitational
and
electromagnetic
fields
and the
contribution
of the
pressure
and
acceleration
fields.
The
total
energy
of all
the
fields
is equal
to zero,
and the
system�s
energy
is
formed
from the
energy
of the
particles,
which
are
under
the
influence
of these
fields.
�... |
� |
Sergey
G.
Fedosin
JJP,
2015, 8(1)
,
1-16
 |
|
Dose
from
Naturally
Occurring
Radium
Radioactivity
in
Abstracted
Disi
Fossil
Groundwater
The
radium
activity
concentration
data
measured
by
Vengosh
et
al.
[1] in
water
samples
from the
Disi
aquifer
are
utilized
to
calculate
the
annual
effective
dose
delivered
to adult
human
consumers.
Although
the
total
activity
in the
Rum
group in
particular
is
significantly
high
compared
to the
very
conservative
World
Health
Organization
WHO
guidelines,
the
calculated
average
effective
dose is
slightly
higher
than the
Jordanian
standard
and less
than the
corresponding
value in
the
Australian
guidelines.
�... |
� |
Saed
Dababneh
JJP,
2015, 8(1)
,
17-27
|
|
Comparative
Study of
Soil
Radon
Concentration
Levels
Using
Active
and
Passive
Detectors
Passive
radon
diffusion
dosimeters
containing
CR-39
detectors,
and an
active
electronic
device,
RAD7�,
were
used for
measuring
soil
radon
concentration
levels,
at
different
depths,
in a
phosphatic
site in
the city
of Irbid,
north of
Jordan.
Time-averaged
values
of the
active
detector
readings
based on
the
periodicity
of soil
radon
concentration
levels
are
compared
with
measurements
of the
passive
detectors
at
different
depths.
An
acceptable
agreement
is
observed. |
� |
N. M.
Ershaidat,������������
B. A.
Al-Bataina
and����
W. S.
Al-Rayashi
JJP,
2015, 8(1)
,
29-37
|
|
Reflection
of
Polarized
Light at
Quasi-Index-Matched
Dielectric-Conductor
Interfaces
Quasi-index-matched
(QIM)
dielectric-conductor
interfaces
are
characterized
by a
unit-magnitude
complex
relative
dielectric
function,
<![if !vml]> <![endif]>�and
exhibit
minimum
reflectance
at
normal
incidence.
Their
reflection
properties
are
analyzed
in
detail
as
functions
of the
incident
linear
polarization
(p
or s),
angle of
incidence
<![if !vml]> <![endif]>�and<![if !vml]> <![endif]>.
Complex-plane
trajectories
of the
Fresnel
reflection
coefficients
<![if !vml]> <![endif]>�<![if !vml]> <![endif]>and
their
ratio
<![if !vml]> <![endif]>�as<![if !vml]> <![endif]>�increases
from 0
to<![if !vml]> <![endif]>are
presented
at
discrete
values
of
<![if !vml]> <![endif]>�
�
...
|
� |
R. M. A.
Azzam
�
JJP,
2015, 8(1)
,
39-47
|
|
�Arabic
Articles |
� |
� |
|
Effects
of
Chemical
Solution
Temperature
on the
Bulk
Etch
Rate of
the
Detector
CR-39
The
effects
of
chemical
etchant
temperatures
on the
bulk
etch
rate
VB
of CR-39
SNTDs
were
investigated.
The bulk
etch
rate is
determined
through
direct
measurement
of
"length-diameter
Le-D" of
alpha-particles
track in
the
detector.
Alpha-particles
irradiations
were
made
with
energy
of
2.5MeV
under
normal
incidence
radioactive
source
241Am
of an
activity
of 1 �Ci.
The
detector
is
etched
by an
aqueous
solution
of NaOH/water
with
6.25
normality
N in the
temperature
range
(55, 60,
65, 70)
�1
oC.
... |
� |
Sa'eed
Hassan
Sa'eed
Al-Nia�emi
JJP,
2015, 8(1)
,
49-55
�
� |
|
Computer
Algorithm
for
Counting
and
Measuring
Alpha
Particles
Track
Diameters
in CR-39
Detectors
This
work is
concerned
with the
design
and test
of a
Matlab-2012
computer
algorithm
capable
of
performing
image
processing
operations
on
digital
images
of alpha
particles
tracks
on CR-39
detectors.
The
software
measures
the
diameters
of
individual
tracks
separately
and
registers
the
measured
value of
each
diameter
on the
digital
picture.
It also
calculates
the mean
and
standard
deviation
for all
tracks
within
any
particular
view. In
addition
to the
enhanced
measurement
accuracy
resulting
from the
elimination
of
sources
of human
errors
associated
with
microscope
measurements,
the
software
saves a
great
deal of
manual
effort
compared
with the
method
currently
being
used for
the
study of
nuclear
tracks.
... |
� |
Mushtaq
Al-Jubbori
and
Salah
Al-Shumaisy
JJP,
2015, 8(1)
,
57-65
�
� |
|
� |
� |
� |
�
|
|
