133BaBarium

¹³³BaBa-133Барий-133Barium-133

Radionuclide characteristics

Half-life, days
Photon energy
3848.7 ± 1.2
Cs XKα2: 30.625 keV (34.0 ± 0.4 %)
Cs XKα1: 30.973 keV (62.8 ± 0.7 %)
Cs XKβ2: 34.92–35.26 keV (18.2 ± 0.2 %)
Cs XKβ1: 35.82–35.97 keV (4.6 ± 0.1 %)
γ₁: 53.1622 ± 0.0006 keV (2.14 ± 0.03 %)
γ₂: 79.6142 ± 0.0012 keV (2.65 ± 0.05 %)
γ₃: 80.9979 ± 0.0011 keV (32.9 ± 0.3 %)
γ₄: 276.3989 ± 0.0012 keV (7.16 ± 0.05 %)
γ₅: 302.8508 ± 0.0005 keV (18.34 ± 0.13 %)
γ₆: 356.0129 ± 0.0007 keV (62.05 ± 0.19 %)
γ₇: 383.8485 ± 0.0012 keV (8.94 ± 0.06 %)

Reference data: Update of x ray and gamma ray decay data standards for detector calibration and other applications (IAEA), volume 1, 2007

Certificates and documentation

  • Special form radioactive material approval certificate No. D/0097/S-96 (Rev. 1) DE (PDF) EN (PDF) RU (PDF)
  • Certificate of conformity No. ОИАЭ.RU.192 OC.00328 RU (PDF)
  • NRC Certificate of Competent Authority No. TX-0508-S-116-S EN (PDF)

Description

133Ba is incorporated in a light ceramic matrix and sealed in a welded monel capsule with a brazed beryllium window. The spacer material is tungsten (for XBa3 sources) or stainless steel (for GBa3 sources).

¹³³Ba X-ray source, capsule type 06
Capsule type 06
D × H, mm
d × h, mm
Nominal activity
Photon output* (ph/s)·sr⁻¹
Code
8 × 5
4 × 1.2
1 mCi (37 MBq)
0.3 × 10³
XBa3.06, GBa3.06
8 × 5
4 × 1.2
3 mCi (111 MBq)
0.9 × 10³
XBa3.06, GBa3.06
8 × 5
4 × 1.2
5 mCi (185 MBq)
1.5 × 10³
XBa3.06, GBa3.06
8 × 5
4 × 1.2
10 mCi (370 MBq)
3.0 × 10³
XBa3.06, GBa3.06
8 × 5
4 × 1.2
20 mCi (740 MBq)
5.5 × 10³
XBa3.06, GBa3.06
8 × 5
4 × 1.2
30 mCi (1110 MBq)
8.0 × 10³
XBa3.06, GBa3.06

* Photon output quoted for Cs K X-rays. Tolerance: −10 ÷ +20 %.
** Extended measurement uncertainty ±10 % for k = 2.
ISO classification: C65344.
Recommended working life: 15 years.
Other activities and dimensions are available on request.