| Dosimeter Holders Apparatus for Evolution Spectrophotometer – Instruction sheet | Dosimeter Holders Apparatus for Evolution One Plus Spectrophotometer – INSTRUCTIONS. GEX P/N P4390. The Dosimeter Holder Apparatus fits into the sample compartment of the spectrophotometer, protecting against stray light interference and holding the dosimeter in proper alignment during measurement. GEX Doc. No. HDWR-EVO-INST-2 | | user-manual | evolution-system hardware |
| Dosimeter Holders Apparatus for Evolution Spectrophotometer – PSS | Dosimeter Holders Apparatus for Evolution One Plus Spectrophotometer – Product Specification Sheet. GEX P/N P4390. The Dosimeter Holder Apparatus fits into the sample compartment of the spectrophotometer, protecting against stray light interference and holding the dosimeter in proper alignment during measurement. GEX Doc. No. HDWR-EVO-PSS-2 | | product-spec-sheet | evolution-system hardware |
| GEX Laboratory Transfer-Standard Dosimeter Service | Product specification sheet for the GEX Laboratory Transfer-Standard Dosimeter Service, P/N’s S1000-X, S1000-XV, S1000-XR. GEX Laboratory provides customers with certified and traceable high dose measurements using alanine pellet dosimeters. Customers use our transfer-standard dosimeter service to calibrate their dosimetry systems by irradiation of GEX’s dosimeters at their irradiation facility alongside their dosimeters. Our certified dose measurements are also useful for establishing dose rate(s) for, or mapping of, radiation fields produced by gamma ray, X-ray or electron beam sources. GEX Doc # DOSM-ALAN-PSS-1. | | product-spec-sheet | alanine dosimeter |
| GEX Sales Terms and Conditions | GEX Corporation Sales Terms and Conditions. Updated 06 Oct 2025. | | | |
| REACH Compliance | This statement provides the compliance status for GEX Corporation products with the following directives or regulations: REACH (EC 1907/2006), Candidate list of 223 Substances of Very High Concern (SVHC). GEX Doc. No. REACH. | | certificate | qa |
| NVLAP Accreditation Certificate | NVLAP Accreditation Certification to ISO/IEC 17025:2017 – Calibration Laboratories. | | certificate | qa |
| NVLAP Scope of Accreditation | Scope of Accreditation (PDF file). GEX is an international standards laboratory accredited by NVLAP to ISO/IEC 17025:2017 for calibrations and dose measurements for ionizing radiation for high-dose dosimetry in the range 0.10 kGy to 100 kGy. NVLAP Lab Code: 600080-0. Effective dates 26 March 2025 through 31 Mar 2026. GEX Doc. No. NVLAP01. | | certificate | qa |
| Quality Manual | Quality Manual. Updated 08-March-2024, version S. Rev. S. GEX Doc. No. MAN-01-01. | | certificate | qa |
| ISO 9001:2015 Certificate of Registration | Current ISO 9001:2015 Scope: Design, Provision, Installation, and Qualification of Dosimetry Systems and Accessories (includes Hardware and Software) for Radiation Processing, and Dosimetry System Calibration Services. GEX Doc. No. ISO 9001 cert. | | certificate | certificate qa |
| P8003 Irreversible Temperature Indicators | Irreversible Temperature Indicators are a self-adhering, self-activating, monitoring tool that provides a visual and irreversible record of the maximum temperature exposure. GEX P/N P8003. GEX Doc. No. INDC-TEMP-PSS-1 (Former document number 100-109). | | product-spec-sheet | indicators |
| P8100 Yellow/Purple Radiation Indicators | The Radiation Indicators are a Type 1 process chemical indicators, and exhibit an obvious, visual color change from yellow to purple when exposed to radiation. Radiation Indicators quickly allow the user to visually determine whether the indicator has been irradiated. Product is designed for the qualitative assessment of radiation exposure for use in Gamma, Electron beam, and X-ray radiation process applications. Thin, flexible and have adhesive properties allowing them to be attached to most surfaces. GEX P/N PP8100 P8101 P8102 P8103 GEX Doc. No. INDC-RAD-PSS-1 (Former Document Number 100-124). | | product-spec-sheet | indicators |
| Digi-Sense Digital Thermometer | The Digital Thermometer with NIST traceable calibration and probe accessories – This product is used to verify the temperature of the Microincubator temperature controller as well as measure temperature inside the slots of the heat block. GEX P/N P4901, P4902, P904. GEX Doc. No. HDWR-HEAT-PSS-3 (Former Doc. No. 100-125). | | product-spec-sheet | thermometer |
| Integrated Barcode Scanner IQOQ Test Form | Integrated Barcode Scanner IQOQ Test Form (Word) – GEX Doc. No. 100-279. (For use with Integrated Barcode Scanner IQOQ Procedure Doc. No.100-278) | | form gex-guidance qualification | dosecontrol-system-iqoq hardware qualification |
| Integrated Barcode Scanner IQOQ Procedure | Integrated Barcode Scanner IQOQ Procedure – GEX Doc. No. 100-278. (Use with Form Doc. #100-279) | | gex-guidance procedure qualification | dosecontrol-system-iqoq hardware qualification |
| Incubator IQOQ Test Form | Incubator IQOQ Test Form (Excel) – GEX Doc. No. 100-277. (For use with Incubator IQOQ Procedure Doc#100-276) | | form gex-guidance qualification | dosecontrol-system-iqoq hardware heat-treatment qualification |
| Incubator IQOQ Procedure | Heat Treatment Incubator IQOQ Procedure – GEX Doc. No. 100-276. (For use with Incubator IQOQ Test Form Doc. #100-277 ) | | gex-guidance procedure qualification | dosecontrol-system-iqoq hardware heat-treatment qualification |
| Spectrophotometer Measurement Repeatability Test Procedure | Procedure for testing dosimeter measurement repeatability using a spectrophotometer and GEX dosimeter holder system. GEX Doc. No. 100-273. (Use with Form 100-272) | | gex-guidance procedure qualification | dosecontrol-system-iqoq dosimeter dosimetry-system qualification |
| Spectrophotometer Measurement Repeatability Form | Spectrophotometer Measurement Repeatability Test Form (MS Excel) – GEX Doc. No. 100-272. (For use with Measurement Repeatability Procedure 100-273) | | form gex-guidance qualification | dosecontrol-system-iqoq dosimeter qualification |
| Evolution Spectrophotometer Performance Verification Procedure | Evolution Spectrophotometer Performance Verification Procedure – GEX Doc. No. 100-271. (For use with Evo Performance Verification Test Form Doc #100-269) | | gex-guidance procedure qualification | dosecontrol-system-iqoq performance-verification qualification |
| GENESYS 30 Spectrophotometer Performance Verification Procedure | GENESYS 30 Spectrophotometer Performance Verification Procedure – GEX Doc. No. 100-270. (For use with Spectrophotometer Performance Verification Test Form Doc #100-269) | | gex-guidance procedure qualification | dosecontrol-system-iqoq performance-verification qualification |
| Spectrophotometer Performance Verification Test Forms | Spectrophotometer Performance Verification Test Form (Excel) – GEX Doc. No. 100-269. (For use with the Evolution performance verification Procedure# 100-271, and the GENESYS 30 performance verification Procedure #100-270) | | form gex-guidance qualification | dosecontrol-system-iqoq performance-verification qualification |
| DoseControl Software versions 2.0.x – User Manual | User guide for DoseControl Dosimetry Software, version 2.0. GEX Doc. No. 100-266 Rev O. (This document is also available in the GEX knowledgebase) | | user-manual | dosecontrol |
| Integration with DoseControl Dosimetry Software – User Manual | User manual for DoseControl software to integrate with imported and exported data. Formerly published as GEX Doc. No. 100-268. | | gex-guidance user-manual | dosecontrol software |
| Implementation Guide for the DoseControl Dosimetry System | About the DoseControl Dosimetry System and how to implement the system. GEX Doc. No. 100-267. | | gex-guidance | dosecontrol |
| DoseControl Software Versions 1.x – User Manual | User guide for DoseControl Dosimetry Software, version 1.x. GEX Doc. No. 100-266 Rev L. (This document is also available in the GEX knowledgebase) | | user-manual | dosecontrol |
| Performing a Dosimeter Batch Calibration | Explains how to perform a dosimetry system calibration (GEX procedure template for customer use.) Explains the dosimetry system calibration of routine dosimeters for the qualification and routine monitoring of commercial and industrial radiation processes with electron beam, x-ray, or gamma sources. Formerly published as Doc. No. 100-263. | | gex-guidance procedure | b3-dosimetry calibrations dosimetry-system |
| Investigating B3 Dosimeter Measurements | Describes methods for investigating and evaluating suspected outlier dosimeter measurements or measurements that differ from the expected dose. Formerly published as GEX Doc. No. 100-259. | | gex-guidance technicalreport | b3 b3-dosimetry dosimeter dosimetry-system |
| Measuring GEX B3 Dosimeters | Describes the process for post-irradiation handling and measurement of GEX B3 dosimeters. This is a procedure template that applies specifically to the GEX DoseControl dosimetry system, but users of other dosimetry software or systems can modify this procedure to suit their specific system. Formerly published as GEX Doc. No. 100-258. | | gex-guidance procedure template | b3 b3-dosimetry dosecontrol dosimeter dosimetry-system |
| Dosimeter Stock Receiving Inspection Form | Dosimeter Stock Receiving Inspection Form (MS Excel) – GEX Doc. No. 100-257. (For use with Dosimeter Stock Receiving Procedure Doc #100-256) | | gex-guidance | b3 dosimeter dosimetry-system |
| Dosimeter Stock Receiving Inspection Procedure | GEX recommended practices for the receipt and inspection of GEX B3 Dosimeter shipments. Formerly published as GEX Doc. No. 100-256. (For use with Dosimeter Stock Receiving Inspection Form 100-257) | | gex-guidance procedure | b3 b3-dosimetry dosimeter dosimetry-system |
| Dosimetry Lab Requirements | General information and requirements for a suitable dosimetry lab area. Provides basic requirements for a laboratory used for a dosimetry process incorporating the GEX DoseControl Dosimetry System. Formerly published as GEX Doc. No. 100-253. | | gex-guidance | b3 dosimeter dosimetry-system |
| How to evaluate dosimeter measurement competence | Guidance for evaluating the competency of a person measuring dosimeters on the DoseControl Dosimetry System. Formerly published as GEX Doc. No. 100-251. | | gex-guidance | b3 dosimeter dosimetry-system |
| UV Control and Monitoring | Guidance about implementing protective measures and test methods to mitigate and protect B3 film dosimeters from potential exposure to daylight and UV light sources. Formerly published as GEX Doc. No. 100-250. | | gex-guidance | b3 dosimeter dosimetry-system |
| Dosimetry Lab Operations SOP | Describes the systems and related set of controls that comprise the Dosimetry Laboratory Operations which supports the overall operations for the irradiation process. Formerly published as GEX Doc. No. 100-249. | | gex-guidance template | b3 b3-dosimetry dosimeter dosimetry-system |
| DoseControl Data Integrity and Electronic Records Compliance | Functional specifications for the GEX DoseControl Dosimetry System, related to data integrity and electronic records compliance. Formerly published as GEX Doc. No. 100-224. | | gex-guidance | dosecontrol software |
| Selecting Performation Verication Method for the Evolution Spectrophotometer | Many options are available for Performance Verification (P.V.) testing of the Evolution Spectrophotometer. Users may find it difficult to determine what P.V. method to use, which are ‘required’, which are ‘recommended’ by GEX or Thermo Fisher Scientific, and most importantly what is best for the user’s application. This document discusses the available options, and provides a method to assist users in making a decision to fit their needs. GEX Doc. No. 100-221. | | gex-guidance | evolution-system performance-verification qualification |
| Performance Study of P8003 Irreversible Temperature Indicator Label | Discusses a study conducted under in-situ conditions similar to typical applications of usage for the P8003 product, and analyzes the accuracy of the chemistry and color development activation. GEX Doc. No. 100-219. | | technicalreport | indicators |
| Transfer Standard Alanine Study | Technical report discussing a transfer standard alanine study. GEX Doc. No. 100-217. | | gex-guidance technicalreport | alanine calibrations dosimeter |
| Calibration of Dosimetry Systems Used in Low Energy Electron Irradiation | Provides updated information about the Dµ method of calibration introduced in November 2007 by GEX and Risø High Dose Reference Laboratory that utilizes reference transfer standard alanine film dosimeters to provide doses traceable to a national standard. Formerly published as GEX Doc. No. 100-211. | | gex-guidance technicalreport | b3-dosimetry calibrations dosimetry-system low-energy-electron-beam |
| Developing and Using Uncertainty Statements | Technical information about dose measurement uncertainty calculations within a dosimeter batch calibration. Formerly published as GEX Doc. No. 100-209. | | gex-guidance technicalreport | b3-dosimetry calibrations dosimetry-system |
| Calibration Analysis: Determining the Integrity of Measurement Data When Calibrating Dosimeters | This document discusses one portion of the analysis of a calibration as currently practiced by GEX Corporation. Discussions of other analysis areas, techniques, biases and/or actions and their relation to the topics discussed are outside the scope of this technical report. Formerly published as GEX Doc. No. 100-208. | | gex-guidance technicalreport | b3-dosimetry calibrations dosimetry-system |
| Ebeam Energy Determination Using GEX Wedge Array Cards | High energy Ebeam energy calculation using GEX Wedge Array Cards in Riso Aluminum Wedge (4.5 to 12 MeV). GEX Doc. No. 100-204. | | gex-guidance | b3 electron-beam qualification |
| Dosimetry System Calibration | Technical information about dosimetry system calibration including requirements, planning, selection, methods, maintenance, and calibration uncertainty. Formerly published as GEX Doc. no. 100-203. | | gex-guidance technicalreport | b3-dosimetry calibrations dosimetry-system |
| Post-Irradiation Heat Treatment of GEX B3 Dosimeter Products | Technical Report – Post-irradiation heat treatment (annealing) of B3 film dosimeters, and the process verification and validation testing of the heat treatment methodology. Formerly published as GEX Doc. No. 100-201. | | gex-guidance technicalreport | b3 b3-dosimetry dosimeter dosimetry-system heat-treatment incubator qualification |
| Desktop Barcode Scanner | Datalogic Heron 2D Barcode Scanner for scanning the dosimeter ID of GEX dosimeters. Dual barcode reading capability allows it to read GEX B3, WINdose and DoseStix dosimeters, both 1D and 2D barcodes. Requires no special software, plug into the PC. GEX P/N P4205. GEX Doc. No. 100-173. | | product-spec-sheet | b3 dosimetry-system evolution-system genesys-30-system hardware |
| E-Beam Phantom 10 MeV | A fixture which is used for the arrangement of discs containing alanine transfer dosimeters and pouches of B3 film dosimeters in proper geometry, to ensure that the dosimeters receive the same absorbed dose when irradiated. Designed for 7.5 to 10 MeV nominal surface energies. GEX P/N P1060. GEX Doc. No. 100-171. | | product-spec-sheet | b3 calibrations electron-beam qualification |
| E-Beam Phantom 5 MeV | A fixture which is used for the arrangement of discs containing alanine transfer dosimeters and pouches of B3 film dosimeters, in proper geometry, to ensure that the dosimeters receive the same absorbed dose when irradiated. Designed for 5 MeV nominal surface energy but can be used for lower energies. GEX P/N P1050. GEX Doc. No. 100-170. | | product-spec-sheet | b3 calibrations electron-beam qualification |
| GENESYS 30 Replacement Lamp | A pre-aligned tungsten-halogen lamp exclusively for user replacement of the lamp in the Thermo GENESYS 30 Spectrophotometer. GEX P/N P4401. GEX Doc. No. 100-169. | | product-spec-sheet | genesys-30-system |
| GENESYS 30 Baseplate & Dosimeter Holder System | GENESYS 30 Baseplate and Dosimeter Holder System is designed for easy installation inside of the Thermo Scientific GENESYS 30 Spectrophotometer, allowing users to measure GEX B3, DoseStix and WINdose style dosimeters. GEX P/N P4405, P4410, P4420, P4430. GEX Doc. No. 100-168. | | product-spec-sheet | genesys-30-system |
| GENESYS 30 Spectrophotometer | GENESYS 30 Spectrophotometer integrates with DoseControl-GENESYS 30 Dosimetry System. GEX P/N P4400. GEX Doc. No. 100-167. | | product-spec-sheet | genesys-30-system |
| Laser Micrometer Measurement Repeatability Form | Measurement repeatability test form (Excel) used for IQOQ of MX2 Laser Micrometers. (Form to be used with Laser Micrometer in the Evolution, Doc#100-164) | | gex-guidance | dosecontrol-system-iqoq performance-verification pmma |
| Metralight MX-2 Laser Micrometer – Evolution | Metralight MX-2 Laser micrometer is a component of the DoseControl-Evolution Dosimetry System used to measure the thickness of Harwell PMMA (Perspex) Dosimeters. GEX P/N P4350. GEX Doc. No. 100-164. | | product-spec-sheet | evolution-system pmma |
| Mercury Lamp Accessory for Evolution Spectrophotometer | The Mercury Lamp Accessory for the Thermo Scientific Evolution Spectrophotometer is a primary physical standard that never requires calibration and can be used to calibrate or verify the performance of the instrument’s wavelength accuracy. GEX P/N P4310. GEX Doc. No. 100-157. | | product-spec-sheet | evolution-system performance-verification |
| Thermo Scientific Evolution Spectrophotometer | Thermo Scientific Evolution Spectrophotometer, for use with DoseControl-Evolution Dosimetry System. GEX P/N P4300. GEX Doc. No. 100-156. | | product-spec-sheet | evolution-system |
| B3150 Energy Wedge Array Card | The B3150 Energy Wedge Array Card is placed in the GEX Part# P4701 Risø Aluminum Energy Wedge (4.5 – 10 MeV) or the GEX Part# P4705, GEX Aluminum Energy Wedge (2 – 4 MeV) and used for electron beam energy estimation. GEX Doc. No. 100-143. | | product-spec-sheet | b3 qualification |
| Forced Air Incubator | Box-style forced air incubator used for heat treatment of B3 film after irradiation. Manufactured by Memmert. GEX P/N P4850, P4855. GEX Doc. No. HDWR-HEAT-PSS-2 (former Doc No. 100-142) | | product-spec-sheet | hardware heat-treatment incubator |
| GEX Dosimeter Batch Calibration Service and Audit Package | GEX provides complete and formalized dosimeter batch calibration services for a wide range of applications. Conforms to current recommended methods published in ISO/ASTM 51261. GEX P/N: S1101, S1102. GEX Doc. No. 100-141. | | product-spec-sheet | calibrations |
| P4705 Aluminum Wedge 2-4 MeV | Aluminum wedge designed to utilize the Part# B3150, GEX Wedge Array Card for the measurement of electron beam depth-dose profile and energy estimation for surface energies ranging from appx. 1.70 to 4.10 MeV. GEX Doc. No. 100-140. | | product-spec-sheet | b3 electron-beam qualification |
| Custom Gage Blocks for Laser Micrometer/PMMA dosimeter holder | The Custom Gage Blocks are a set of custom fabricated Grade 00 gage blocks designed to fit specifically into the P4336 PMMA Dosimeter Holder and used for performance verification of the P4350 MX2 Laser Micrometer. Each set consists of three individual gage blocks with nominal thicknesses of 2.0, 3.0 and 4.0mm (±0.1mm). Calibration certificate provided. GEX P/N: P4355 GEX Doc. No. 100-133. | | product-spec-sheet | dosecontrol-system-iqoq evolution-system performance-verification pmma qualification |
| GENESYS 30 – Integrated Barcode Scanner | The Datalogic Matrix 120 Barcode Scanner is a component of the DoseControl-GENESYS30Dosimetry System. It is mounted inside the GENESYS 30 Spectrophotometer sample compartment using a specially designed bracket and connected to the dosimetry workstation PC with a USB interface cable. GEX P/N P4450. GEX Doc. No. 100-132-1. | | product-spec-sheet | genesys-30-system hardware |
| T-Type Thermocouple B3 Probe for Digital Thermometer | T-Type Thermocouple B3 Probe for use with the Digital Thermometer (P4901). The B3 Probe fits into the slots of the P4900 Microincubator and used to validate temperature of the incubator heat block. GEX P/N P4902. GEX Doc. No. 100-126. | | product-spec-sheet | hardware heat-treatment incubator performance-verification thermometer |
| B3 film – sheets and strips | B3 radiochromic film – sheets and strips. GEX P/N B3100, B3102, B3103. GEX Doc. No. 100-122. | | product-spec-sheet | b3 |
| Risø Calorimeters | Risø Calorimeters: B6001 5 MeV Polystyrene Calorimeter; B6002 6-10 MeV Polystyrene Calorimeter; B6004 6-10 MeV Graphite Calorimeter. Used for measurement of dose by irradiation in electron accelerators. GEX P/N B6001, B6002, B6004. GEX Doc. No. 100-121. | | product-spec-sheet | calorimeter |
| Risø Aluminum Energy Measurement Wedge | Wedge manufactured to specifications of the High Dose Reference Laboratory at Denmark’s Risø National Laboratory. Used to measure energies between approximately 2 MeV and 20 MeV. Each wedge is tested and certified by Risø in a 10 MeV electron accelerator. GEX P/N P4701. GEX Doc. No. 100-119. | | product-spec-sheet | b3 electron-beam qualification |
| P4502 B3 Dosimeter Hinged Holder | B3 Film Dosimeter Hinged Holder for GENESYS 30 System for the10x10mm WINdose dosimeter. Hinged-holder fits into the cuvette holder P4420. GEX P/N P4502. GEX Doc. No. 100-116. | | product-spec-sheet | b3 genesys-30-system |
| Spectrophotometer Calibration Standard Set with NIST traceability certificate | The Thermo SPECTRONIC™ Standards Set 2 is a certified, NIST traceable standards set used for performance verification of certain UV-Visible spectrophotometers, such as the GENESYS 30 and Evolution. Manufactured by Thermo Fisher Scientific. GEX P/N P4220. GEX Doc. No. 100-113. | | product-spec-sheet | dosecontrol-system-iqoq evolution-system genesys-30-system performance-verification qualification |
| Electron Beam Calibration Phantoms | Electron beam calibration phantoms are used for performing in-plant batch calibration of dosimeters in electron beam irradiation facilities. GEX P/N P1020 (for 10 MeV) and P1030 (for 5 MeV). GEX Doc. No. 100-108. | | product-spec-sheet | calibrations electron-beam |
| Gamma Calibration Phantoms | Gamma calibration phantoms are used for performing in-situ batch calibration of dosimeters in gamma irradiation facilities. GEX P/N P1010 (standard size phantom) and P1011 (small size phantom). GEX Doc. No. 100-107. | | product-spec-sheet | calibrations gamma-xray |
| B3 Uniformity Strip | Product information for the B3 Uniformity Measurement Strip (B3 WINdose Radiochromic Film Dosimeters Array), GEX P/N B3106. GEX Doc. No. 100-103. | | product-spec-sheet | b3 electron-beam qualification |
| B3 Array Card for E-beam Energy 2-12 MeV | B3 Array Cards are placed in the Risø Aluminum Energy Wedge (P/N P4701) and used for electron dose distribution and beam energy estimation for electron beams operating in the range of 2 to 12 MeV. GEX P/N B3110, B3112. GEX Doc. No. 100-102. | | product-spec-sheet | b3 electron-beam qualification |
| Microincubator heat treatment system | Microincubator is used for the heat treatment of B3 dosimeters in the pouch. Comes with a NIST-traceable calibrated timer. P/N P4900. GEX Doc No. 100-123. | | product-spec-sheet | heat-treatment incubator |
| Irreversible Temperature Indicators | The GEX Irreversible Temperature Indicators are a self-adhering, self-activating, monitoring tool that provides a visual and irreversible record of the maximum temperature exposure. The Irreversible Temperature Indicator is designed for use in Gamma, Electron Beam, and X-ray radiation process applications. P/N P8003. GEX Doc No. INDC-TEMP-PSS-1 (Former doc. no. 100-109) | | product-spec-sheet | calibrations indicators |
| B3 dosimeter product specifications | Product specification sheet for GEX B3 dosimeter products – all types and forms. GEX B3 radiochromic film dosimeters are single-use devices used to measure absorbed dose to products/materials that are irradiated during their manufacture. GEX P/N B3500, B3000, B3000-DS. GEX Doc No. 100-101. | | product-spec-sheet | b3 dosimeter |
