Article Review:

EPR Dosimetry Systems;

Assessment and developed in NCRRT

S. Ebraheem

Prof. of Applied Radiation Chemistry Chairman, NCRRT

Seif_dose@yahoo.com

National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Nasr City, Cairo -Egypt.

- Material Name : Arginine Monohydrochloride. - Type of Dosimeter : Rods

Dose range from 5 to 180 kGy.

- Material Name : Ammonium Oxalate. - Type of Dosimeter : Rods

Dose range from 10 to 1000 Gy.

- Material Name : Cardamom & Cloves plants. - Type of Dosimeter : Powder.

Dose assessment of Cardamom & Cloves plant (powder).

- Material Name: Magnesium lactate. - Type of Dosimeter: Rods

Dose range from 0.1 to 100 kGy.

- Material Name: 2-Methylalanine. - Type of Dosimeter: Pellets

Dose range from 1 to 100 kGy.

- Material Name: Strontium sulfate. - Type of Dosimeter: Rods

Dose range from 1 to 100 Gy.

- Material Name: Strontium carbonate. - Type of Dosimeter: Rods

Dose range from 2.5 to 500 Gy.

- Material Name: Riboflavin. - Type of Dosimeter: Rods

Dose range from 0.1 to 100 kGy.

- Material Name: Taurine. - Type of Dosimeter: Powder

Dose range from 0.1 to 50 kGy.

- Material Name: Taurine. - Type of Dosimeter: Rods

Dose range from 1.5 to 100 kGy.

- Material Name: Sodium glutamate. - Type of Dosimeter: Powder

Dose range from 1 to 90 kGy.

- Material Name : Glutamic acid. - Type of Dosimeter: Pellets

Absorbed dose, kGy

0 2 4 6 8 10 12 14 16

Co

rrela

ted

S.H

.

0.000

0.001

0.002

0.003

0.004

0.005

[GA],%

60.070.080.0

Magnetic Field, Gauss

3360 3380 3400 3420 3440 3460 3480 3500

EP

R S

.H.

-10000

-5000

0

5000

10000

Incr

easi

ng

do

se

Increasin

g d

ose

Dose,kGy

0.00.53.010.020.030.0

g1=2.02664

g2=2.02115

g3=2.01328

g4=2.00607

g5=1.99456

g6=1.98964

Dose range from 0.1 to 15 kGy & 15-150 kGy

- Material Name : Hydrazin Sulfate - Type of Dosimeter: Rod

Magnetic Field, Gauss

3380 3400 3420 3440 3460 3480 3500 3520

EP

R Inte

nsi

ty

-8000

-6000

-4000

-2000

0

2000

4000

6000

8000

Conc. = 40%

Absorbed dose =

50 kGy

- Material Name: Quartz - Type of Dosimeter: Rods

Dose range from 0.1 to 290 kGy.

0 Gy

1000 Gy

100 Gy

180 kGy

0 Gy

100 Gy

500 Gy

0 Gy

100 Gy

290 KGy

References

- EPR dosimetric properties of radiation – Formed radicals in arginine monohydrochloride, W.B. Beshir

et al., J. Photochem. Photobio. B: Biology 116 (2012) 1-6.

- EPR dosimetric potential of Ammonium Oxalate in radiation technology, M.A.H. Rushdi, W.B. Beshir,

under publication.

- Identification and dose assessment of irradiated cardamom and cloves by EPR spectrometry,

W.B. Beshir, Radit. Phys. Chem. 96 (2014) 190-194.

Laila I. Ali, H. Moustafa, Soad M. Tadros, Radit. Phys. Chem. 102 (2014) 11 -15.

- Strontium sulfate as an EPR dosimeter for radiation technology application, M.A.H. Rushdi, A.A.

Abdel-Fattah, M.M. Sherif, Y.S. Soliman, A. Mansour, J. Radiat. Resea. Appl. Sci. 8 (2015) 221- 225.

- Radiation-induced defects in strontium carbonate rod for EPR dosimetry applications, M.A.H. Rushdi,

A.A. Abdel-Fattah, Y.S. Soliman, Radit. Phys. Chem. 131 (2017) 1-6.

- Magnesium lactate mixed with EVA polymer/paraffin as an EPR dosimeter for radiation processing

application, Y.S. Soliman, A.A. Abdel-Fattah, Radit. Phys. Chem. 81 (2012) 1910 -1916.

- EPR dosimetric properties of 2-methylalanine pellet for radiation processing application,

Y.S. Soliman,

- Gamma radiation-induced effects on riboflavin EPR investigation and spectroscopic analyses,

A. Mansour, A.A. Abdel-Fattah, Y.S. Soliman, .J. Drug Del. Sci. Tech., 24 (2014) 105 – 110.

- Taurine for EPR dosimetry, A. Maghraby, A. Mansour, E. Tarek, Radiat. Environ. Biophys. 51 (2012) 255 –

261.

- Taurine-EVA Copolymer-Paraffin rods dosimeters for EPR high-dose radiation dosimetry,

A. Maghraby, A. Mansour, E. Tarek, A.A. Abdel-Fattah, Intern. J. Nucl. Sci. 59 (2014) 9- 13.

- ESR Dosimetric Properties of Sodium Glutamate, S. Eid, S. Ebraheem, A. Sobhy, Egypt J. Rad. Sci. Applic. 27

(2014) 119 – 133.

- A New EPR dosimeter based on Glutamic acid for radiation-processing application,

W. B. Beshir, Yasser S. Soliman, A.A. Abdel-Fattah, Ramy Amer Fahim. MSc. Thesis, Cairo university, 2016.

- A New EPR Dosimetry System, S. Ebraheem, S.M. Gafar, Egypt J. Rad. Sci. Applic., 22 (2011) 105-111.

- Study of radiation-induced paramagnetic centers in quartz and its possible use in radiation dosimetry, A.

Mansour, PhD thesis, Al-Azhar university, Egypt, 2008,

https://inis.iaea.org/search/search.aspx?orig_q=RN:40024278.

NCRRT EPR Dosimetry Group

Prof. Dr. Atef Abdel-Fattah

EAEA chairman

Prof. Dr. Seif Ebraheem

NCRRT chairman

Prof. Dr. Wafaa Beshir

Reference dosimetry lab.

chairman

Ass. Prof. Dr. Sayda Eid Ass. Prof. Dr. Yasser Soilman

Dr. Sameh Gafar Dr. Hanaa Hassan Dr. Asmaa Sobhy

PhD students

Mr. Ramy Amer Fahim Mr. Ahmed Bayomi

Questions?