Sealed radioactive sources

Iridium 192 (Ir-192)

 

EXERTUS DUAL 60 / 120 Source Holder

The primary use of Ir-192 sealed source is in gamma radiography. In comparison to other sealed sources used in similar applications, the film resolution produced with the use of Ir-192 provides exposure of high quality which is of critical importance in the field of non-destructive testing.


These Ir-192 capsules, made of stainless steel and containing high purity activated Iridium, are manufactured according to strict ISO classification and each source is welded and tested to comply with Special Form Certification, also fully accredited by the IAEA.

2-3

Delivery time in weeks

 

12-100

Steel working thickness in mm

74

Ir-192 Half-life in days

353

Gamma spectrum in keV

Ir-192 Capsule type

HA, HB, YA, HC

Selenium 75 (Se-75)

EXERTUS® CIRCA / RID-SE4P Source Holder
&
EXERTUS® CIRCA / RID-SE4P TIP 65cmmge Heading

 

The successful use of gamma radiography depends on the ability to provide sufficient radiation to penetrate the weld and produce an image of acceptable resolution and contrast on the processed radiographic film.


Isotopes with low gamma energies don’t give a good quality due to the inability to penetrate the object being imaged but well Se-75 which Gamma Spectrum is from 66 keV to 401 keV, with two lines of high intensity at 136 keV and 265 keV.
The resultant average energy of 217 keV is lower than the 353 keV for Ir-192. This means that the Se-75 give better image quality compare to Ir-192 due to less energy.

 

Double Capsule containing the isotope as pressed selenium powder. The capsules are tested to comply with Special Form Certification, also fully accredited by the IAEA.

1

Reloading per year with a source of 100 Ci

 

SR-18 Capsule

55

Dose rate in μSv/hr/GBq at 1 meter

119,8

Se-75 Half-life in days

217

Gamma spectrum in keV

Se-75 Capsule type

GS-M11 Capsule
GS-M12 Capsule
SR-17 Capsule

Cobalt 60

 

EXERTUS® VOX 100 Source Holder

The successful use of gamma radiography depends on the ability to provide sufficient radiation to penetrate the weld and produce an image of acceptable resolution and contrast on the processed radiographic film.

Cobalt 60 sealed source is also used throughout the industrial radiography industry to detect structural damage to metal parts. 

 

The Co-60 sealed source design, provide a cost-effective alternative meeting or exceeding regulatory requirements for radiation source encapsulations.

 

The capsules are tested to comply with Special Form Certification, also fully accredited by the IAEA.

1,3

Exposure rate at 1 m for 1 Ci in R/h

 

70-200

Steel working thickness in mm

5,27

Co-60 Half-life in years

2,5

Gamma spectrum in MeV