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Addendum 01: This addendum is being issued to modify the subject Item Requirements and Specifications and Offeror Questions and Answers as follows: Item Requirements and Specifications Quantity 1 – Mo... Addendum 01: This addendum is being issued to modify the subject Item Requirements and Specifications and Offeror Questions and Answers as follows: Item Requirements and Specifications Quantity 1 – Mounting for Liquid Cryostat For Janis ST-500 Cryostat Software must be compatible with LakeShore temperature controller This has been corrected to: Quantity 1 – Mounting for Liquid Cryostat For Janis ST-100 Cryostat Software must be compatible with LakeShore temperature controller Offeror Questions and Answers QUESTION 1: Given a front face sample holder is indicated for powder and thin film samples, will the internal stray light level of the system and scattered light produced by the sample be a concern for acquiring accurate steady state sample acquisition data? ANSWER: It is a concern, the angle between the face of the solid/powder sample holder and the incident excitation beam should be adjustable. a.: Is there a stray light limit required for the monochromators? ANSWER: Stray light rejection of 1:1010 for a double emission monochromator. QUESTION 2: Will both weakly emitting low QY compounds and strongly emitting compounds be analyzed at the same time? ANSWER: Yes, a single photon counting system with a high dynamic range is preferable QUESTION 3: Given system detection capability is required from 200 – 1700nm, will chromatic aberration correction be required? ANSWER: Not required. a: If so what is the preferred method? ANSWER: Not required but user-adjustable focus of lenses or mirror-based optics would be acceptable. b. Will UV excitation below 200 nm be required? ANSWER: No. QUESTION 4: For TCSPC applications, is there a system electronics dead-time limit? ANSWER: 400ns or shorter dead time. Reverse timing mode must also be available as an option. QUESTION 5: Additional specifications indicate the following: “Show 100ps or better time response with diode laser excitation and time-correlated single photon counting detection” What emission wavelength or range is this required for this decay speed? ANSWER: For 200-800 nm, the IRF should be 600ps or better. For 800-1700nm, the IRF should be 800ps or better. QUESTION 6: If it is technically impossible to meet the above IRF specification based upon detector TTS, Laser Pulse FWHM & electronic jitter with a single exponential decay - may an alternate or additional detector with slightly different emission ranges be used to meet this specification depending upon the TCSPC decay emission Line/range as asked above? ANSWER: Yes QUESTION 7: Are any kind of ongoing customer support and/or service programs desired/required? Vendor should provide free phone, email, Teams (Zoom, etc.) support for the life of the system. ANSWER: Lamp bulbs should be replaceable by the user. END OF ADDENDUM 01 Vendor shall deliver, install, and provide training for a Steady State, Phosphorescence Lifetime, and Fluorescence Lifetime Spectrometer, quantity one (1) as specified below. Training is to be provided for up to two (2) operators. Additional Items Quantity 1 - Visible PMT Detector in TE Cooled Housing Spectral Range: 200 nm – 980 nm Quantity 1 - NIR PMT in Liquid Nitrogen Cooled Housing Spectral Range: 300 nm -1700 nm Quantity 1 - NIR Grating for Emissions Spectrometer 830 grooves/mm – blaze 1200nm Quantity 1 - Order Sorting Filter for 1250 nm Quantity 1 – 375 nm Pulsed Diode Laser With 60 ps or shorter pulse width Quantity 1 – 405 nm Pulsed Diode Laser With 55 ps or shorter pulse width Quantity 1 – 475 nm Pulsed Diode Laser With 90 ps or shorter pulse width Quantity 1 – TE Cooled Sample Holder Minimum Range -40° - +105°C Quantity 1 – Integrating Sphere Sphere must be fully integrated in the instrument’s sample compartment to avoid coupling losses via fiber optics Must include software for automated quantum yield calculations Quantity 1 – Front Face Sample Holder Must be suitable for use with powders and thin film samples Quantity 1 – Excitation Polarizer Angle and position must be fully computer controlled Must include automated software for anisotropy measurements Quantity 1 – Emission Polarizer Angle and position must be fully computer controlled Must include automated software for anisotropy measurements Quantity 1 – Mounting for Liquid Cryostat For Janis ST-500 Cryostat Software must be compatible with LakeShore temperature controller Additional Criteria: Show sensitivity of >35,000:1 for Signal-to-Noise Ratio of the water Raman signal measured with 350nm excitation at 397nm and 1-second integration Show 100ps or better time response with diode laser excitation and time correlated single photon counting detection. Show quantum yield measurement with sample chamber mounted integrating sphere. Show visible detected anisotropy measurement capability. Show Janis cryostat integration including software communication with a LakeShore temperature controller. Any questions regarding this solicitation must be submitted in writing to the Procurement personnel listed on this announcement via email at krojas@anl.gov by no later than 3/10/2023.