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Small animal fixtures, dose shields, and pie cages

Developed with the assistance and input of experienced researchers in the field of small animal studies, Precision X-Ray manufactures a comprehensive line of fixtures, dose shields, and pie cages suitable for use in x-ray irradiators.

If you do not see a fixture that meets your needs, Precision X-Ray has the capabilities to design and manufacture custom fixtures that will fit your requirements - call us to find out more.

To order call 203-484-2011 or email sales@pxinc.com with the fixture/part number.

Holding Fixtures + Shields

For a simple setup

Custom sizes and Descriptions are available. Please call for consultation


Size 1 (<25g mice) Fixture Body Diameter is 1in (25mm)

  • Description
  • Left Flank Fixture
  • Right Flank Fixture
  • Dual Flank Fixture
  • No Flank Fixture
  • Fixture No.
  • XD1907-1011
  • XD1907-1012
  • XD1907-1013
  • XD1907-1014
  • Dose Shield No.
  • XD1907-2011
  • XD1907-2012
  • XD1907-2013
  • XD1907-2014

Size 2 (>25g mice) Fixture Body Diameter is 1.375in (35mm)

  • Description
  • Left Flank Fixture
  • Right Flank Fixture
  • Dual Flank Fixture
  • No Flank Fixture
  • Fixture No.
  • XD1907-1021
  • XD1907-1022
  • XD1907-1023
  • XD1907-1024
  • Dose Shield No.
  • XD1907-2021
  • XD1907-2022
  • XD1907-2023
  • XD1907-2024

QUAD Fixture for Cranial Irradiation

Available in Size 1 (<25g mice) Body Diameter 1in (25mm) or Size 2 Body Diameter 1.375in (35mm)

Customs Quad Descriptions for a specific anatomical region are available. Includes 4 fixtures for the specific setup and size. Please call for consultation

Size 1 (<25g mice) Fixture Body Diameter is 1in (25mm)

  • Description
  • Quad Assy, Size 1
  • Quad Assy, Size 2
  • Fixture No.
  • XD1907-2017
  • XD1907-2027

Head and Spine Shield

With Bite Block Fixture

Size 2 Plastic Fixture (1.375“ dia / 35mm) fitted with special Bite Bar and Nose Clamp Assembly that allows for optimum positioning of the head. Knobs are featured on the side and top of the clamp assembly to tighten as needed.


Both the head and spine pieces can be removed individually from the assembly. The spine piece also slides open from the center out to a maximum width of 0.5”.


  • Description
  • Bite Block Fixture, Size 2
  • Head/Spine Shield Assy
  • Part No.
  • XD1907-1020
  • XD1907-2020

Abdomen Shield

Available in Size 1 and Size 2


  • Description
  • Size 1, Outside Dimensions: 2" L x 1.75" W x 1.40" H
  • Size 2, Outside Dimensions: 2.25" L x 2" W x 1.50" H
  • Part No.
  • XD1907-2016
  • XD1907-2025

Head Exposed Shield

Available in Size 1 and Size 2


  • Description
  • Size 1, Outside Dimensions: 3.40" L x 1.75" W x 1.40" H
  • Size 2, Outside Dimensions: 3.40" L x 2.25" W x 1.50" H
  • Part No.
  • XD1907-2015
  • XD1907-2026

Total Body Irradiation Pie Cage

Circular cage with 12 ventilated pie shaped chambers - 11 usable sections and one for loading

Notched removable lid can be dialed to any of the ventilated pie-shaped chambers.


Mouse Unit: 8-1/2” (216mm) diameter by 2-5/16” (59mm) height

Individual Chamber: 1-7/8” (50mm) wide x 3-1/2” (90mm) long


  • Description
  • PIE-M Pie Cage
  • Part No.
  • XD1906-0000

Rat Pie Cage

With a total of 12 wedges, of which 11 are usable

15" dia x 3" high


  • Description
  • Model R-12
  • Part No.
  • XD1906-0020

Mouse Pie Cage

Autoclavable with a total of 10 wedges, all of which are usable

7.5" dia x 2" high


  • Description
  • Model AM-10
  • Part No.
  • XD1906-1000

Holding Fixtures + Shields

For a simple setup

Custom sizes and Descriptions are available. Please call for consultation


Size 1 (<25g mice) Fixture Body Diameter is 1in (25mm)

  • Description
  • Left Flank Fixture
  • Right Flank Fixture
  • Dual Flank Fixture
  • No Flank Fixture
  • Fixture No.
  • XD1907-1011
  • XD1907-1012
  • XD1907-1013
  • XD1907-1014
  • Dose Shield No.
  • XD1907-2011
  • XD1907-2012
  • XD1907-2013
  • XD1907-2014

Size 2 (>25g mice) Fixture Body Diameter is 1.375in (35mm)

  • Description
  • Left Flank Fixture
  • Right Flank Fixture
  • Dual Flank Fixture
  • No Flank Fixture
  • Fixture No.
  • XD1907-1021
  • XD1907-1022
  • XD1907-1023
  • XD1907-1024
  • Dose Shield No.
  • XD1907-2021
  • XD1907-2022
  • XD1907-2023
  • XD1907-2024

QUAD Fixture for Cranial Irradiation

Available in Size 1 (<25g mice) Body Diameter 1in (25mm) or Size 2 Body Diameter 1.375in (35mm)

Customs Quad Descriptions for a specific anatomical region are available. Includes 4 fixtures for the specific setup and size. Please call for consultation

Size 1 (<25g mice) Fixture Body Diameter is 1in (25mm)

  • Description
  • Quad Assy, Size 1
  • Quad Assy, Size 2
  • Fixture No.
  • XD1907-2017
  • XD1907-2027

Head and Spine Shield

With Bite Block Fixture

Size 2 Plastic Fixture (1.375“ dia / 35mm) fitted with special Bite Bar and Nose Clamp Assembly that allows for optimum positioning of the head. Knobs are featured on the side and top of the clamp assembly to tighten as needed.


Both the head and spine pieces can be removed individually from the assembly. The spine piece also slides open from the center out to a maximum width of 0.5”.


  • Description
  • Bite Block Fixture, Size 2
  • Head/Spine Shield Assy
  • Part No.
  • XD1907-1020
  • XD1907-2020

Abdomen Shield

Available in Size 1 and Size 2


  • Description
  • Size 1, Outside Dimensions: 2" L x 1.75" W x 1.40" H
  • Size 2, Outside Dimensions: 2.25" L x 2" W x 1.50" H
  • Part No.
  • XD1907-2016
  • XD1907-2025

Head Exposed Shield

Available in Size 1 and Size 2


  • Description
  • Size 1, Outside Dimensions: 3.40" L x 1.75" W x 1.40" H
  • Size 2, Outside Dimensions: 3.40" L x 2.25" W x 1.50" H
  • Part No.
  • XD1907-2015
  • XD1907-2026

Total Body Irradiation Pie Cage

Circular cage with 12 ventilated pie shaped chambers - 11 usable sections and one for loading

Notched removable lid can be dialed to any of the ventilated pie-shaped chambers.


Mouse Unit: 8-1/2” (216mm) diameter by 2-5/16” (59mm) height

Individual Chamber: 1-7/8” (50mm) wide x 3-1/2” (90mm) long


  • Description
  • PIE-M Pie Cage
  • Part No.
  • XD1906-0000

Rat Pie Cage

With a total of 12 wedges, of which 11 are usable

15" dia x 3" high


  • Description
  • Model R-12
  • Part No.
  • XD1906-0020

Mouse Pie Cage

Autoclavable with a total of 10 wedges, all of which are usable

7.5" dia x 2" high


  • Description
  • Model AM-10
  • Part No.
  • XD1906-1000