RSS2 - GM Resolving Time Source Set

The RSS2 source set is used for determining the resolving time of GM counters. It consists of 3 half-disks: 2 contain Tl-204 and 1 is left blank (contains no material).

All RSS2 sources have an uncertainty of ± 20% of the labeled activity.

Not available for calibration.
RSS2(2) Tl-204, 5 μCi (185 kBq), sealed half-disk sources
(1) Blank half-disk
RSS2EU(2) Tl-204, 0.25 μCi (9.25 kBq), sealed half-disk sources
(1) Blank half-disk
Ordering Information:
RSS2Set of 2 Tl-204 sources
RSS2EUSet of 2 Tl-204 sources – EU (for international orders)

RSS3 - Alpha/Beta/Gamma Source Set

The RSS3 source set is designed for demonstrating the basic characteristics of radiation. It consists of 3 disk sources: 1 gamma emitter, 1 beta emitter, and 1 alpha emitter.

All RSS3 sources have an uncertainty of ± 20% of the labeled activity.

Alpha and beta sources cannot be calibrated.
 RSS3(1) Co-60, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Sr-90, 0.1 μCi (3.7 kBq), sealed disk (1″ diameter)
(1) Po-210, 0.1 μCi (3.7 kBq), unsealed disk (1″ diameter)
RSS3UN(1) Co-60, 0.5 μCi (18.5 kBq), sealed disk (1″ diameter)
(1) Sr-90, 0.1 μCi (3.7 kBq), sealed disk (1″ diameter)
(1) Po-210, 0.1 μCi (3.7 kBq), unsealed disk (1″ diameter)
Ordering Information:
RSS3Set of 3 sources
RSS3UNSet of 3 sources – UN (for international orders)

RSS5 - Alpha/Beta/Gamma Source Set

The RSS5 source set is designed for demonstrating the basic characteristics of radiation. It consists of 5 disk sources: 2 gamma emitters, 2 beta emitters, and 1 alpha emitter.

All RSS5 sources have an uncertainty of ± 20% of the labeled activity.

Alpha and beta sources cannot be calibrated.
RSS5(1) Co-60, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Cs-137, 5 μCi (185 kBq), sealed disk (1″ diameter)
(1) Tl-204, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Sr-90, 0.1 μCi (3.7 kBq), sealed disk (1″ diameter)
(1) Po-210, 0.1 μCi (3.7 kBq), unsealed disk (1″ diameter)
RSS5EU(1) Co-60, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Cs-137, 0.25 μCi (9.25 kBq), sealed disk (1″ diameter)
(1) Tl-204, 0.25 μCi (9.25 kBq), sealed disk (1″ diameter)
(1) Sr-90, 0.1 μCi (3.7 kBq), sealed disk (1″ diameter)
(1) Po-210, 0.1 μCi (3.7 kBq), unsealed disk (1″ diameter)
Ordering Information:
RSS5Set of 5 sources
RSS5EUSet of 5 sources – EU (for international orders)

RSS8 - Gamma Source Set

The RSS8 source set is designed for gamma spectroscopy. It consists of 8 different gamma emitting isotopes that cover the entire range from 32 keV to 1332.49 keV.

All disk sources have an uncertainty of ± 20% of the labeled activity unless calibrated (± 5%) for an additional cost.

RSS8(1) Ba-133, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Cd-109, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Co-57, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Co-60, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Cs-137, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Mn-54, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Na-22, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) “Mixed Unknown” – Cs-137, Zn-65; 0.5 μCi (18.5 kBq), 1 μCi (37 kBq); sealed disk (1″ diameter)
RSS8EU(1) Ba-133, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Cd-109, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Co-57, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Co-60, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Cs-137, 0.25 μCi (9.25 kBq), sealed disk (1″ diameter)
(1) Mn-54, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Na-22, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Zn-65, 1 μCi (37 kBq), sealed disk (1″ diameter)
RSS8UN(1) Ba-133, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Cd-109, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Co-57, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Co-60, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Cs-137, 0.1 μCi (3.7 kBq), sealed disk (1″ diameter)
(1) Mn-54, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Na-22, 1 μCi (37 kBq), sealed disk (1″ diameter)
(1) Zn-65, 1 μCi (37 kBq), sealed disk (1″ diameter)
Ordering Information:
RSS8Set of 8 gamma sources
RSS8EUSet of 8 gamma sources – EU (for international orders)
RSS8UNSet of 8 gamma sources – UN (for international orders)