User manual

Physical Term New unit Old unit Relation

Activity Becquerel (Bq) Curie (Ci) 1 Ci = 3,7 * 10

1 Bq = 1/s 1 Bq = 2,7 * 10

-11

= 27 pCi

Ion dose I Coulomb/kg Röntgen(R) 1R=2,58*10

-4

C/kg

1 C/kg = 3876 R

Energy dose D Gray (Gy) Rad (rd) 1 rd = 0,01 Gy

1 Gy = 100 rd

Equivalent dose H Sievert (Sv) Rem (rem) 1 rem = 0,01 Sv

1 Sv = 100 rem

Effective Dose H

Sievert (Sv) Calculated value /

1 Sv = 1 J / kg radiation protection

For relationship between Bq and Sievert see „Gamma FAQ“ (www.gamma-scout.com)

Calibration

Under environmental radiation, fatigue of material for the counter tube is not expected, therefore no

re-calibrationisneeded.Yet,duetotheISOcertication,periodicalcalibrationisrequired.Forthis

purpose, our service offers two options:

Minor Calibration

The device to be tested is handed out to an assembler who tests it for 72 hours, comparing it to a

master. The master is adjusted to a gauged reference source (Cs-137). Data is recorded.

Currently,thiscosts50Euro,beforesalestaxes.NormallytheISOauditorsacceptthisformof

calibration.

Major Calibration

We contact the Director of the Institute for Radiation Protection at the University of Mannheim.

We arrange terms of metering points, wording of the records, fees and appointment dates directly.

Technical Data, Calibration