Quality Assurance Control
Resume:
TM. Seyed Ahamed -
C.V.
FULL NAME Thambi Maraikkar Seiyed Ahamed
ADDRESS ***, ***** ***** ****,
Eravur -06D, Sri Lanka
DATE OF BIRTH 12 March 1973
CONTACT DETAILS Tel : +94-77-735*-***
Email: ***.******@*****.***
Skype: tm.ahamed
PERSONAL STATEMENT
I have witnessed first-hand the suffering of cancer patients in my neighbourhood. Sri Lanka being a
country ill-equipped to deal with large number of cancer patients, it is a theatre of suffering for a lot of
patients. Driven by a strong humanitarian instinct to help these patients I took up studies in Medical
Physics. I wish to work in a competitive environment where I can not only use my knowledge and
experience but also gain greater experience.
PROFICIENCY IN ENGLISH LANGUAGE
Competent enough to work as a Medical Physicist in an English speaking environment.
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M.M.M. Mohamed Faizal
C.V.
PERSONAL QUALITIES
TEAM PLAYER: As a teacher of Physics in leading schools in Sri Lanka, I have worked with teachers from
various linguistic, cultural and religious backgrounds. I have always been appreciated as a dependable
and inspirational team player.
LIFE-LONG LEARNER: I have learnt that only through continuous learning that one can keep his/her
presence in a profession relevant. In today’s fast changing world, this is truer. I appreciate that a great
deal can be learnt informally too, and I take advantage of every available opportunity for learning.
CULTURAL ADAPTABILITY: Having worked in multi-cultural environments, I have learnt to be respectful
to differences in people. I have seen that multi-cultural teams produce greater synergy. I can easily and
quickly adapt to new situations.
EDUCATION AND TRAINING
Special Training program in Medical Physics Division,Dr Kamakshi Memorial Hospital
PVT.LID,Chennai INDIA
During the training period I have familiarized with linear Accelerator(Siemens-Primus and
Elakta Synergy-3DCRT/IMRT/IGRT),High dose rate Ir-192 Brachytherapy system(Nucletron-
2013 mHDR), 3-D Treatment planning system (Nucletron-Plato and CMS Xio) contouring
workstation(Nucletron-Oncentra Master Plane and CMS Focalsim) and CT simulation including
Training
immobilization with aqua blast and vaclock.In addition, I have been visited the
MRI,CT,PET_CT,US,GAMMA Camera and cyclotron facility of above hospital.I have given
special emphasis on Dosimetry,calibration and Quality Assurance(daily/weekly) in Linear
accelerator and High dose rate Brachytherapy.
2013
M.Sc.
Degree
And
Postgraduate Degree in Medical Physics (M.Sc. in medical Physics)
syllabus
University of Peradeniya
Sri Lanka
1.Human Biology and Cell Biology
Basic Physiology
Role, function and interactions of the major organs and body systems. Physiological regulatory
processes. Introduction to organ systems, Gastrointestinal system, Respiratory system, Heart,
Circulation, Urinary system, Reproductive system, Blood and body fluid, Nervous system, Joints
and bones. Sensory Organs: Eye, Ear, Vestibular sensations taste and smell.
2.Physics of Diagnostic and Therapeutic Radiology
Atomic physics
Atomic and nuclear structure, radioactivity, production of radioactive materials; Interactions of
photons and other ionizing radiations with matter.
Basic interaction processes
Coherence scattering, incoherence scattering (Compton), photo electric, pair production,
Photonuclear reaction and their clinical importance, Range of secondary electrons, Bragg curve,.
HVL/TVL, Attenuation and absorption coefficients, stopping powers, LET.Definition of PDD,
TAR, BSF, TPR, TMR, SAR their properties and application. Iso-dose curves, beam modifier -
TM. Seyed Ahamed -
C.V.
Wedge filter, Clarkson segmental integration, Calculation of simple treatment techniques for
clinical applications.
3. Nuclear Medicine I
Nuclear Physics, Planar and tomographic imaging, Data processing, Mode of action of
radiopharmaceuticals and the interpretation of clinical studies, In vitro studies, Positron
emission tomography.
The gamma camera, Specification of camera performance.
4.Radiobiology
Basic radiobiology
Free radical formation; damage to biological molecules; effects at cellular and whole body
levels.
Radiobiology and human oncology
Cell survival curve - RBE therapeutic ratio, cell cycle and radio sensitivity; Sensitivity of
different types of tissues; Tissue tolerance dose LD 50/5, LD 5/5, paediatric dosimetry;
Fractionation NSD concept; Prescribing, recording, and reporting photon beam therapy ICRU
report 50; Design and conduct of clinical trial - study objective, patient eligibility end points,
treatment allocation, size and duration of study, data management, ethics, Surface marking of
organs,
5 Statistics
Definitions, Descriptive statistics, Binomial, Poisson and Gaussian distributions, Central limit
theorem, Inferential statistics, population mean, standard error and deviation, difference
between statistics, Curve fitting, regression analysis
6 Computing
Technology evolution, Structure of algorithms, Representation and models of arithmetic
manipulation, Operating system and language review, Principles of project and system design,
Future trends, Tutorials on use of packages, Overview of biomedical applications of computing,
including Artificial Intelligence and parallel processing approaches, Introductory signal and
image processing, Data reduction, Principles of software design, Software development
techniques and good programming practices, Introduction to C with worked examples and
opportunities for supervised programming.
7 Introduction to Digital Electronics and Microprocessors
8 Applications of Physics in Medicine
9 Clinical Instrumentation
10 Laboratory Course
Each student MUST complete TEN of the following experiments. Each experiment is 3hr.
a. Scintillation techniques for radionuclide counting
b. Pulse height spectroscopy, Analysis of spectrum from radioactive sources with the use
single-channel spectrum analyser
c. Measurement of HVL for diagnostic X-ray beams
d. Electrocardiograph performance
e. Performance of a gamma camera
f. Stray -Radiation detection and dose measurement
g. Clinical thermoluminescent dosimetry
h. Personnel dosimetry
i. Counting statistics
j. Digital electronics hardware
k. Ultrasound scanner
l. Optical analogue for X-ray CT and Emission Tomography
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M.M.M. Mohamed Faizal
C.V.
m. The failure mechanism of ligaments
n. Central axis depth dose and dose profiles measurement for Co-60 Teletherapy beam
o. Measurement of TAR and PDD for C0-60 teletherapy beam
p. Construction and calibration of a GM-Monitor
q. Study of voltage current characteristics of an ion-chamber
r. Calibration of gamma-ray spectrometer and identification unknown sources
s. Calibration of TLD with TLD –reader and dose evaluation
11. Radiation Protection
12 Radiotherapy Physics
Dosimetry and calibration of photon and electron beams with cavity ion chambers
Determination of absorbed dose in free space and in water for photons and electron beams,
IAEA code of practice: TRS 277and 398 protocols.
Radiation Detectors
Diode, films, TLD, chemical and calorimetric methods of measuring radiation and their clinical
applications.
Radiotherapy Treatment Planning-EBT
Tumour localization and cross sectional information. Acquisition of patients’ specific data from
simulators, CT scanners and from other procedures. General principles in treatment planning.
Dose specifications planning techniques - fixed, moving, irregular fields. Use of wedge filters,
tissue compensation filters, bolus, patient immobilization devices.2-D planning. 3D-conformal
radiation therapy (3D-CRT). Treatment verification methods and treatment optimisation
methods. Quality control of treatment planning systems.
13.Medical imaging Physics
Radiography Physics, Basic imaging concepts and their relationships, imaging system
capabilities
Physics of plain radiography, mammography, fluoroscopy, dental x-ray and Image processing;
emphasizing relevant design features, main physical features and functions, optimisation of
image quality/noise/patient dose, controlling scatter radiation and their limitations. (typical
exposure levels and dose levels associated with each imaging modality); Types of x-ray films
and intensifying screens used;Importance of routine Quality Control (QC) for equipments and
procedures; Contrast, noise, signal-to-noise ratio, detective quantum efficiency, resolution, point-
spread function, modulation-transfer function. Rose model.
Magnetic Resonance Imaging (MRI)
14 Radiotherapy and Medical Imaging Laboratory
Radiotherapy
1. Measurement of HVL of KV radiation beams;
2. Absorbed dose determination in free space and to water for KV and MV radiations;
3. Calibration of brachytherapy source;
4. Quality Assurance tests for teletherapy machine .
5. Quality Assurance tests for HDR brachytherapy systems
6. Quality Assurance of computer treatment planning systems (TPS)
7. Quality Assurance tests for Simulator and CT;
8. Treatment planning and dose calculations, fixed fields, moving fields, irregular fields, wedge
fields, conformation therapy; optimisation treatment verification, and delivery.
9. Source reconstruction and dose calculation for brachytherapy (manual and computer
methods); LDR + HDR
10. Calibration of radiation survey meters
11. Preparation of sealed sources for treatment;
12. Preparation and dispensing unsealed sources;
TM. Seyed Ahamed -
C.V.
13. Mould room procedures;
14. Treatment verification, clinical applications.
Medical Imaging (Radiology)
15. kVp, effective keV and half-value layer of x-ray beams.
16. QA of film processing
17. Measurement of x-ray tube focal spot size. Pinhole, Siemens Star and "line-pair"
techniques for measurement of focal spot size.
18. Measurements of various film parameters (H & D curves, speed and film gamma).
19. Phototimer systems.
20. Exposure timer and mAs reciprocity.
21. Measurement of fluoroscopic resolution. Low and high contrast resolution tools.
22. Beam restriction and beam alignment.
23. Evaluation of image performance of a CT scanner.
CT test phantoms: low and high contrast resolution, slice width, CT linearity, impulse
response. Effects of various reconstruction filters on image quality.
24. Basic QA of an ultrasound scanner. Evaluation of: penetration, accuracy with respect to
depth; image uniformity; resolution (axial, lateral and near-field).
25. Uses of QA phantoms in MRI. Evaluation of system performance and image quality using
standardized phantoms in a routine quality control program.
Radiotherapy
Clinical Treatment planning session will be done with the supervision of an Oncologist. Dose
calculation, dose optimisation, treatment verification etc. will be supervised by a physicist. This
would involve in each case.
A. Discussion
Tumour volumes – GTV, CTV, ITV, PTV, TV, IV, OR, PRV; Outline and delineation of GTV;
Simulation and verification of PTV; Field arrangement and techniques of treatment; Dose
identification for critical organs; Computer planning and verification of plans, weightage of
doses - rechecking of critical organ doses; Checking of treatment set up with Oncologist and
checking of the 1st. treatment.
B. Candidates Should Personally Plan Tumours of the Following Sites.
CNS tumour - Spinal cord, pituitary, brain stem glioma; Head and neck - PNS, tonsil/base of
tongue. Supra glotic larynx, larynx. Maxillary antrum; Thorax - Lung, esophagus; Abdoman -
Pancreas, bladder; Cervix - external beam + brachytherapy; Soft tissue sarcoma of limbs,
brachytherapy + external beam.
Medical Imaging (Radiology)
Diagnostic Radiology – Participating with relevant staff professionals in the performance of
clinical x-ray, mammography, fluoroscopy and angiography machines. Performing dosimetry
tests and quality assurance.
CT, MRI, and DSA – Performing acceptance and quality assurance tests on CT, DSA, and MR
scanners and machines. Performing dosimetry measurements to insure radiation safety.
Medical Ultrasound - Performing acceptance and quality assurance tests for clinical diagnostic
ultrasound scanners. Operating clinical ultrasound equipment independently.
15 Nuclear Medicine II
Covers the whole field of Nuclear Medicine, Starts with the physics of instrumentation from
radiation detectors to gamma cameras, beta and gamma sample counters, etc. Considers the use
of this equipment in clinical practice and the measurement of performance for quality control.
The interpretation of nuclear medicine images and their role in clinical practice is considered
together with the application of data processing techniques.
Image analysis
Use of computers in nuclear medicine, acquisition of data, data processing, algorithms for
analysis.
Single Photon Emission Tomography (SPECT)
Reconstruction algorithms, detectors, sensitivity, scatter, attenuation and count rate problems,
statistical limitations, instrumentation, calibration and quality control, artifacts.
Positron Emission Tomography (PET)
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M.M.M. Mohamed Faizal
C.V.
Detection process, reconstruction algorithms, Ring/multi-ring systems, occurrence of random
counts, attenuation correction.
16 Medical Electronics and Instrumentation
Topics will include: Active filters, amplifiers for physiological signals, transducers,
instrumentation amplifiers, signal processing and recording, automated signal analysis, renal
dialysis equipment, electrical stimulation, anaesthetic gas analyzers, pulse oximetry,
management of equipment.
17 Biomechanics, Biomaterials and Rehabilitation Engineering
.
18 Computer Architectures and Artificial Intelligence
19 Clinical Interactions and Demonstrations
20 Advanced Techniques and Special procedures in Radiotherapy
Postgraduate Diploma in Education (PGDE).
2007 University of Colombo. Sri Lanka
First Degree in Science (B.Sc.), Physics,Computer Science and Pure mathematics
2003 University of Peradeniya. Sri Lanka
PROFESSIONAL EXPERIENCE
Medical Physicist student and Trainee
2011-up to
now
Teacher of Physics and Mathematics, School, the Srilanka.
Responsibilities: Creative Lesson Planning; Curriculum Development; Classroom Management
1998-2011
& Discipline ; Standardised Testing / Scoring; Learner Assessment; Special Needs Students
Research Project
Research
Project
Final year individual project
Study of Dosimetric Characteristics of Motorized Wedges in Photon Beam of
Linear accelerator used in Radiotherapy
AIMOF THE STUDY
The aim of the project is to study the physical and Dosimetric characteristics of universal
wedges such as Wedge Factor, Percentage Depth Dose, Surface dose and Peripheral dose
TM. Seyed Ahamed -
C.V.
and compare it with that of open fields.Treatment planning system are used in external
beam radiation therapy to generate beam shapes and dose distribution with the intent to
maximize tumour control and minimize normal tissue complications. Patient anatomy and
tumour target can be represented as a 3 dimensional model. In treatment planning beam
modifying devices will be used to alternate the beam and dose distribution. Mostly wedges
will be used as beam modifying device in radiation therapy
OTHER SKILLS
Arabic
Language Can read and write, very limited ability to understand
Computer Science was a major subject in my first degree. I have excellent experience in the use
Computer
of Mata lap software, which I learnt while reading for my M.Sc. degree.
Skills
REFEREE DETAILS
Dr K.Thayalan,
Head Medical Physics Division,
Dr Kamakshi Memorial Hospital
PVT.LID,Chennai-600100
INDIA
Dr Chandana P Jayath
Department of Physics
University of Peradeniya
Srilanka
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