Radioactive Check Source - 0.25 µCi Cs-137

PART NUMBER: 01-5723

INDICATED USE: Instrument functional check
ISOTOPE: ¹³⁷Cs (others available)
AMOUNTS: 0.25 µCi (others available)
SIZE: 1"(2.5cm) diameter X 0.1"(0.3cm) thick

This is a general purpose radioactive check sources that can be used freely to check responses from multiple instruments or be contained inside of Ludlum's mechanical check source holder (see below) that is directly attached to an instrument for convenience.  The sources are sealed within a plastic disk. 

Radioactive Check Source - 1.0 µCi Cs-137

PART NUMBER: 01-5196

INDICATED USE: Instrument functional check
ISOTOPE: ¹³⁷Cs (others available)
AMOUNTS: 1.0 µCi (others available)
SIZE: 1"(2.5cm) diameter X 0.1"(0.3cm) thick

This is a general purpose radioactive check sources that can be used freely to check responses from multiple instruments or be contained inside of Ludlum's mechanical check source holder (see below) that is directly attached to an instrument for convenience.  The sources are sealed within a plastic disk. 

Radioactive Check Source - 5.0 µCi Cs-137

PART NUMBER: 01-5186

INDICATED USE: Instrument functional check
ISOTOPE: ¹³⁷Cs (others available)
AMOUNTS: 5.0 µCi (others available)
SIZE: 1"(2.5cm) diameter X 0.1"(0.3cm) thick

This is a general purpose radioactive check sources that can be used freely to check responses from multiple instruments or be contained inside of Ludlum's mechanical check source holder (see below) that is directly attached to an instrument for convenience.  The sources are sealed within a plastic disk. 

Radioactive Check Source - 10 µCi Cs-137

PART NUMBER: 01-5231

INDICATED USE: Instrument functional check
ISOTOPE: ¹³⁷Cs (others available)
AMOUNTS: 10 µCi (others available)
SIZE: 1"(2.5cm) diameter X 0.1"(0.3cm) thick

This is a general purpose radioactive check sources that can be used freely to check responses from multiple instruments or be contained inside of Ludlum's mechanical check source holder (see below) that is directly attached to an instrument for convenience.  The sources are sealed within a plastic disk. 

Radioactive Check Source - 1.0 µCi Ba-133

PART NUMBER: 01-5818

INDICATED USE: Instrument functional check
ISOTOPE: ¹³³Ba (others available)
AMOUNTS: 1.0 µCi (others available)
SIZE: 1"(2.5cm) diameter X 0.1"(0.3cm) thick

This is a general purpose radioactive check sources that can be used freely to check responses from multiple instruments or be contained inside of Ludlum's mechanical check source holder (see below) that is directly attached to an instrument for convenience.  The sources are sealed within a plastic disk. 

Mechanical Radioactive Check Source Holder

PART NUMBER: 4062-166

Ludlum's traditional mechanical type check source holder is screwed onto the instrument housing and has a nice swing-away door that exposes the source whenever needed.  This type holder is typically used with the Plastic Disk type check sources measuring 1.0 inch in diameter by 0.10 inches thick.

Plastic Laminate Radioactive Check Sources with Stick-On Holder

PART NUMBERS:

4464-473-01 1.0 µCi ¹³⁷Cs

4464-473-02 0.25 µCi ¹³⁷Cs

These sources are purposely designed to be attached to instruments.  They include a new very thin type plastic laminate source and an industrial strength adhesive holder for attaching directly to the instrument of choice.  Other source activities and isotopes are available upon request.