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 %)

Mössbauer resonance on 57Fe

Application

The Sources are suitable to use in all Mössbauer Spectrometers and for Industrial Applications of the Mössbauer Effect.

Certificates and documentation

  • NRC Certificate SSDR LA-1491-S-105-S Mossbauer Sources EN
  • Certificate of conformity No. ОИАЭ.RU.192 OC.00344 RU

Serial sources

Description

Active part of Mössbauer source is prepared by electrodepositing high purity carrier-free ⁵⁷Co onto a thin metal backing (matrix) followed by controlled annealing process. Standard matrix is rhodium. Active part is placed into titanium alloy holder with brazed beryllium window and sealed with laser welding.

Capsule type 1, 6
Capsule type 2
Capsule type D × H, mm d, mm Nominal activity * Line width, mm/s Code
mCi MBq
1 11.2 × 13 8 5 185 0.11–0.13 MCo7.111
1 11.2 × 13 8 10 370 0.11–0.13 MCo7.112
1 11.2 × 13 8 25 925 0.11–0.13 MCo7.113
1 11.2 × 13 8 50 1850 0.11–0.13 MCo7.114
1 11.2 × 13 8 100 3700 0.11–0.14 MCo7.115
2 14 × 14 8 5 185 0.11–0.13 MCo7.121
2 14 × 14 8 10 370 0.11–0.13 MCo7.122
2 14 × 14 8 25 925 0.11–0.13 MCo7.123
2 14 × 14 8 50 1850 0.11–0.13 MCo7.124
2 14 × 14 8 100 3700 0.11–0.14 MCo7.125
6 6 × 13 4 5 185 0.11–0.15 MCo7.161
6 6 × 13 4 10 370 0.11–0.15 MCo7.162

* Tolerance -5 ÷ +10 %.
Recoilless fraction: 0.75.
14.41 keV photon emission efficiency: ≥ 75 %.
ISO classification: C54243.
Temperature range: -60 ... +150 °C; 
With short-term exposure to temperatures down to -196 °C;
Cyclic temperature changes from room temperature to -269 °C are allowed (no more than 80 cycles) **.
Recommended working life: 10 years.
All sources are carefully tested on certified equipment. Each source is supported by a Test Report with measured values of Mössbauer spectra parameters.
** Additional notification is required for liquid helium temperature application.

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Point sources

Description

The source is a beryllium capsule with active part inside, inserted into a titanium alloy holder. The holder is a single-piece element with truncated cone shaped front end and threaded tail piece. Source active part is a metal matrix with thermally diffused 57Co isotope. Source tightness is achieved by glued and welded joints.

Capsule type 9
Capsule type 10
Capsule type D × H, mm d, mm Nominal activity * Line width, mm/s Code
mCi MBq
9 4 × 14 1 5 185 0.13–0.15 MCo7.191
9 4 × 14 1 10 370 0.13–0.17 MCo7.192
10 6 × 17 1 5 185 0.13–0.15 MCo7.1101
10 6 × 17 1 10 370 0.13–0.17 MCo7.1102
* Tolerance -5 ÷ +10 %.
Recoilless fraction: 0.75.
14.41 keV photon emission efficiency: ≥ 75 %.
ISO classification: C33243.
Temperature range: -50 ... +50 °C;
With short-term exposure to temperatures down to -196 °C.
Recommended working life: 10 years.
All sources are carefully tested on certified equipment. Each source is supported by a Test Report with measured values of Mössbauer spectra parameters.

Request

Sources