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Biophysics 1.



Általános információk

1st academic year first semester

Lectures: 2 hours/week

Laboratory practices: 4 hours/week

Credit: 5 (for one semester)

Tutor: Dr. István Voszka (phone: 4591500 ext: 60234)

If one wants to get exemption from the subject based on the previous studies must give the application to the tutor until Sept. 15. The transcript (original or validated copy) and the detailed topic list of the relevant subjects should be attached. If there is a proper overlap between the topics (at least 75%) we check the knowledge of applicants by a written test containing multiple choice questions at the beginning of the second week of the semester.
The attached sample test shows the style of questions. The real test will contain 40 questions.


Participation in the practical lessons is compulsory. No more than three absences from practices are allowed for any reason, otherwise the semester will not be credited. Missed sessions must be reported to the teacher the week after. The missed measurements should be done with another group if possible.

Students must write a lab. report for each measurement. The registration card is signed only when the report is acceptable. The report is due two weeks after the measurement. At the final exam time all students must show their collection of reports to the examiner.The lab reports should be ready within one week after the measurement.

Precondition for participationon the laboratory practices, that the student must print the lab report sheet and fill the first page. It is important, that the student should write the questions, that he/she had during preparation for the practice. This will be the basis of discussion .

Rules for lab reports :

1.      Every lab report is considered as a written exam, where grades can be given between 1 and 5..

2.      The basis of acceptability that the teacher must sign the data measured ont he practice and written into part D of the lab report.

3.      After this the evaluation of the data must be done on the attached pages (parts E, F, G). For this application of computer is suggested, but the previously used excel sheets prepared for the given measurement are not allowed to use.

4.      Only the tasks listed in the homepage are required for a certain measurement.

5.      We give help to prepare the lab report by the checklist included in the sheet.

6.      The decision about acceptance of lab report is done usually one week after the measurement. If the grade is between 1 and 4 the student is responsible for the correction of mistakes (part H), but the examiner will check it on the exam. During the correction the first version should remain in the lab report in order to see, why the correction was necessary. For correction of small mistakes it is not necessary to include new page.

7.      Doing the missed measurement with another group is possible with previous agreement of both teachers (your own and the teacher of the group, where you want to go).

8.      If you can not do the missed measurement with another group, you have to make the lab report from the data given by the teacher but it is still considered as an absence.

9.      In case if one has more than three lab reports with grade 1 the signature for the semester is denied.

All the lab reports must be shown to the examiner on the semifinal/final exam. If the mistakes are not corrected the result of exam will be one grade worse.

The form for the lab report can be downloaded here:


The tasks for the acceptance of lab reports are listed here:


The order of laboratory practices can be found here:


Midterm tests:
There will be two midterm tests on the 5th and 9th weeks. It contains 5 questions, from which there are 2 calculations. One can get 10 points for each question. Retake will be on the 13th and 14th weeks
The first midterm will be from the lecture material of 1-4. weeks and the laboratory practices of the first measurement cycle. The second midterm will be from the lecture material of 5-8. weeks and the laboratory practices of the second measurement cycle. The retake will be from the material of both midterms.
For the signature one must achieve at least 50 points from the possible 100 (altogether for the two midterms) On the retake 50 points should be achieved from 100.

A sample for the midterm test can be downloaded from here:

Written entrance test. One must achieve at least 50 % of the points in order to pass.
On the oral part one should answer theoretical questions.

Formula collection can be used on the exams. It can be downloaded here:

We call the attention that  we do not give permission to take Biophysics II. without passing Biophysics I.

A tantárgy elsajátításához szükséges segédanyagok (könyv, jegyzet, egyéb)

Damjanovich-Fidy-Szöllősi (eds): Medical Biophysics (2009)

Medical biophysics practices (Semmelweis Publisher, 2015)



1 Introduction; Basic mathematics (Levente Herényi) 2017.09.15.  
2 Basic general physics (Levente Herényi) 2017.09.22. pdf  
3 Geometrical optics; Fermat principle; Applications of geometrical optics (Levente Herényi) 2017.09.29. pdf  
4 Wave optics; Applications of wave optics; Photon concept (Levente Herényi) 2017.10.06. xls   pdf  
5 Radiations; Law of attenuation of intensity of radiation (Levente Herényi) 2017.10.13. pdf  
6 Structure of matter; atom, electron (Levente Herényi) 2017.10.20. pdf  
7 Atomic and molecular interactions; Applications (Tamás Bozó) 2017.10.27. pdf  
8 Many atom systems; Boltzmann distribution; Gases; Solids (Levente Herényi) 2017.11.03. pdf  
9 Light emission, scattering, absorption; Thermal radiation (Levente Herényi) 2017.11.10. xls   pdf  
10 Luminescence; Light sources; Lasers (Levente Herényi) 2017.11.17. pdf  
11 Liquid crystals; biological and artificial membranes (István Voszka) 2017.11.24. pdf  
12 Structural organization of living systems: water, nucleid acids, proteins (Gergely Agócs) 2017.12.01.  
13 Radioactive isotopes and radiation (László Smeller) 2017.12.08. pdf  
14 X-radiation and its interaction with matter. (Tamás Bozó) 2017.12.15. pdf  



Everybody should bring ID card to the test.  We call your attention, that during the midterm tests and exams one can use calculator with max. 2 lines display only.

Without ID card and lab. reports one can not start the exam.

Consultations in the exam period will be on the following days at 4 p.m.:

Dec. 19, 22
Jan. 2, 9, 16, 23, 30

It will be in one of the student laboratories of the Department.

Házi feladat példák

Házi feladat példák

week Theory   Practice
1 9   unit conversion
transposition of formulae
2     Microscopy I: 12
further calculations
3     Refractometry: 14
further calculations
5     Light_Emission.pdf
6 20, 21   Resonance.pdf
7      http://biofiz.semmelweis.hu/upload/file/BioPhysics_Problems_Microscopy_II_2016.docx
8     Problems_Light_Absorption.pdf
9 1-4, 6   Problems_Nuclear_Medicine.pdf
10 15   Problems_OpticsOfTheEye.pdf
11 9, 10, 11    
13 24-28, 30    
14 16, 17, 18    

From the further calculations the following are important for the semifinal exam:

Microscopy I.: 2.23, 2.28

Refractometer: 2.10, 2.12, 2.14

Light emission: 2.56

Resonance: 11.2, 11.3

Mikroscopy II. (Special microscopes): 2.34, 2.35

Light absorption: 2.77, 2.78, 2.152

Optics of the eye:  4.5, 4.9

Nuclear medicine: 12.1, 12.4, 12.6