RITVERC JSC
RITVERC JSC
10, Kurchatova str., 194223,
St. Petersburg, Russia
Phone: +7 812 297-44-63
Fax: +7 812 297-58-87
Email: info@ritverc.com
Url: www.ritverc.com

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57Co

⁵⁷Co Co-57 Кобальт-57 Cobalt-57 Cobaltum-57

Half-life, days

271.8100 ± 0.0400

Photon energy
Fe XKα2 6.39084 keV (33.2 ± 0.5 %)
Fe XKα1 6.40384 keV (16.8 ± 0.3 %)
Fe XKβ 7.058–7.108 keV (7.1 ± 0.2 %)
γ1 14.41295 ± 0.00031 keV (9.15 ± 0.17 %)
γ2 122.06065 ± 0.00012 keV (85.51 ± 0.06 %)
γ3 136.47356 ± 0.00029 keV (10.71 ± 0.15 %)

Certificates and documentation

  • Special form radioactive material approval certificate No. D/0098/S-96 (Rev. 1) DE
  • Certificate of conformity No. ОИАЭ.RU.192 OC.00328 RU

Description

57Co is incorporated in a light ceramic matrix and sealed in a welded stainless steel capsule. GCo7.27 source is also available in titanium capsule.

Capsule type 11
Capsule type 27, 12, 13, 14
Capsule type 15
Capsule type 16, 17, 19, 18
D × H, mm d × h, mm Nominal activity * Code
mCi MBq
3 × 3 2.1 × 1.5 1–300 37–11100 GCo7.11
3 × 10 2.1 × 1.5 1–300 37–11100 GCo7.12
4 × 10 3.1 × 1.5 1–300 37–11100 GCo7.13
7 × 10 5.2 × 2.5 1–300 37–11100 GCo7.14
8 × 5 4 × 1.2 1–300 37–11100 GCo7.15
10 × 5 8.5 × 1 1–300 37–11100 GCo7.16
12 × 3 8.5 × 1 1–300 37–11100 GCo7.17
30 × 4.5 8.5 × 1 1–300 37–11100 GCo7.18
10 × 4 4 × 1.2 1–300 37–11100 GCo7.19
3 × 5 2.1 × 1.5 1–300 37–11100 GCo7.27

* Tolerance: -10 ÷ +20 %.
Other activities and dimensions are available on request.
ISO classification:

  • C64344 (GCo7.11);
  • C64444 (GCo7.12 ÷ GCo7.19);
  • C66444 (GCo7.27 / Stainless Steel);
  • C65343 (GCo7.27 / Titanium).

Recommended working life: 15 years.
Sources can be supplied complete with holders. For details see Source holders.

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