Innova ALPHAiX Series Скачать руководство пользователя страница 1

TABLE OF CONTENTS

1.

Dose rate measurement with Type G counter tube

Page

2

2.

Statistical error of measurement

Page

2

3.

Contamination measurement

 

Page

3

4.

Detection limit

Page

4

5.

KC1 standard compound

Page

5

6.

Di

ff

erentiation of radiation types

Page

6

7.

Some more theory

Page

7

APPENDIX


Measuring table

 

Page

8

Using the measuring table

Page

9

ALPHAiX
with Counter Tube Type G

End window counter tube for
measurement of ALPHA, BETA 
and GAMMA radiation. Laboratory
counter tube for surface 
measurement. Suitable for 
contamination measurements

OPERATING INSTRUCTIONS 

for Counter Tube Type G

JS Monday 10 January 2011                                                                                                                                                  Page  1 of  9

Содержание ALPHAiX Series

Страница 1: ...fferentiation of radiation types Page 6 7 Some more theory Page 7 APPENDIX Measuring table Page 8 Using the measuring table Page 9 ALPHAiX with Counter Tube Type G End window counter tube for measurem...

Страница 2: ...active radiation source present in its vicinity The recorded number of impulses is converted to a value per minute This value Ipm is then the so called background count In measurement only measured va...

Страница 3: ...to contact For accurate measurements a stand is required to ensure a constant distance for 10 minutes As already mentioned the tolerance value for a 10 minute measurement is 35 Ipm i e if a maximum of...

Страница 4: ...ust be extended if a 10 minute measurement does not show satisfactory results As you can see we have rounded up in the calculation of the tolerance value Needless to say you can work with the more acc...

Страница 5: ...with opened covers both at the tablet and the counter tube with the end window of the tube held directly on the tablet surface In the counter tube A the metal bezel can be put on the tablet as the en...

Страница 6: ...the two measurements If ALPHA radiation is present the first measurement without transparent film must be correspondingly higher The distance for these measurements should be 5 mm Separating the BETA...

Страница 7: ...tivity Bq of the radiation source required to allow its measurement The radiation energy keV and its activity Bq are two different factors which together with the type of radiation ALPHA BETA and GAMM...

Страница 8: ...n for this measurement Smaller distances give higher impulse frequencies and larger distances correspondingly lower counting efficiencies Impulses per minute Ipm NUCLIDE END WINDOW COUNTER TUBES IMMER...

Страница 9: ...ence shows that the pre requisites often do not concur with those of the measuring table A shorter distance usually 5 mm is often chosen for surface measurements using the type A or G end window count...

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