University of Wisconsin - Madison REQUEST FOR BID

University of Wisconsin - Madison REQUEST FOR BID
University of Wisconsin - Madison
REQUEST FOR BID
AGENT: Janet Bresnahan
Questions regarding this bid – see Section 3.1
THIS IS NOT AN ORDER
For Submittal of Bid Instructions – see Section 1
Bid prices and terms shall be firm for sixty (60) days
from the date of bid opening, unless otherwise specified
in this Request for Bid by the UW-Madison Purchasing
Services.
OFFICIAL SEALED
BID NUMBER: 15-0025
ISSUE DATE: 11/10/14
DUE DATE: 11/13/14
If NO BID (check here)
2:00 PM CST
and return.
Unless otherwise noted, public openings will be on the
date and time specified. Award(s), if any, will be made
as soon thereafter as possible.
The bid abstract will be on file and is open to public
inspection only after award determination has been
made.
DESCRIPTION
15-0025 / AMENDMENT #2 / Digital Flat Panel X-Ray Image Detector
Amendment #2 issued to: respond to Bidder’s questions and issue a revised Attachment B: Specifications, which amends
specification #9 (added in Amendment #1) and add Specifications #13.
Please replace page 15 of 25.
If this amendment is not signed and returned, your bid may be disqualified.
All other terms and conditions remain the same. Please revise and submit your bid accordingly.
In signing this bid, we have read and fully understand and agree to all terms, conditions and specifications and acknowledge
that the UW-Madison Purchasing Services bid document on file shall be controlling. We certify that we have not, either directly
or indirectly, entered into any contract or participated in any collusion or otherwise taken any action in restraint of free
competition; that no attempt has been made to induce any other person or firm to submit or not to submit a bid; that this bid has
been independently arrived at without collusion with any other bidder, competitor or potential competitor; that this bid has not
been knowingly disclosed prior to the opening of bids to any other bidder or competitor; that the stated statement is accurate
under penalty of perjury. I certify that the information I have provided in this bid is true and I understand that any false,
misleading or missing information may disqualify the bid.
COMPANY NAME:
COMPANY STREET ADDRESS:
COMPANY CITY, STATE & ZIP:
SIGNATURE:
DATE :
TYPE OR PRINT NAME:
TITLE:
TELEPHONE NUMBER: (
)
FAX NUMBER:
EMAIL ADDRESS:
FEIN NUMBER:
DUNS #:
(
)
UNIVERSITY OF WISCONSIN
MADISON, WISCONSIN 53715-1218
Amendment #2
BID NO.: 15-0025
QUESTIONS AND ANSWERS
Bidder Questions and Answers for 15-0025
Q1. The original specification call for 25 lp/cm resolution. The clarifications mention 30 fps. Do the have to be simultaneous?
A1. No, they do not have to be simultaneous. 25 lp/cm is required when the detector is operated at 15 fps, and 12 lp/cm is required
when operated at 30 fps.
Q2. Would a product that gives 30 fps with 400 micron resolution, and 15 fps with 200 micron resolution fill the needs?
A2 Yes, it will fill the needs.
UNIVERSITY OF WISCONSIN
MADISON, WISCONSIN 53715-1218
Amendment #2
BID NO.: 15-0025
PAGE 15 OF 25
ATTACHMENT B: SPECIFICATIONS
Scope
The University of Wisconsin – Madison, Department of Medical Physics purchasing a Digital Flat Panel X-Ray Image
Detector. The detector will be used in a new x-ray computed tomography (CT) bench top system in the Medical Physics
Laboratory.
Specifications & Instructions for Completing Specification Table
The following specifications represent minimum acceptable requirement. Bidders must select either “yes” or “no” for each
specification below. For any “No” Response, the bidder must provide a detailed written explanation indicating how this
difference in specification would affect the performance of the product being bid. The University shall be the sole judge of
acceptability.
MEET
Digital Flat Panel X-Ray Image Detector
SPECIFICATIONS
ITEM
DESCRIPTION
Technical Specifications
1.
10.
The energy response of this new digital flat panel detector must be compatible with the x-ray
tube (model: Varian G-1592) already installed in the lab, which has a kVp range of 40 to 140.
To perform x-ray CT imaging with clinically relevant adult-sized phantoms without causing
any data truncation, we require the flat panel detector has an x-ray-sensitive area of at least 30
cm by 40 cm.
The detector must be able to provide a spatial resolution of at least 25 lp/cm to help
performing high resolution x-ray imaging tasks, like the human musculoskeletal imaging.
To acquire high quality images for low x-ray dose studies, the detector must have detective
quantum efficiency (DQE) of at least 70% at 0 spatial frequency.
The detector must have a dual-gain mode (one is high gain, the other is low gain) to increase
the detector dynamic range and therefore allowing us to perform low contrast but high signal
to noise ratio (SNR) x-ray imaging studies.
The detector calibration, correction, and cooling system must be stable enough during long xray exposure time applications.
The detector must come with a video interface board and other related necessary accessories
to help interface and capture the output from the detector to a workstation.
The installation of the detector system should be capable of being installed by University
personnel. If not, the cost of the installation should be added to Lot 1 in the Itemized Bid List
and will be included in the total for evaluation purposes.
The detector must have a fast read out be able to perform image readout at a speed of >=
30 frames/second to achieve in vivo cone beam CT imaging.
The detector must have a Cesium Iodine Scintillator
11.
The required fill factor must be at least 70%.
12.
The maximum entrance exposure of the detector must be at least 3500 micro-Roentgen (uR)
per frame.
The spatial resolution of at least 25 lp/cm (specification 3) and a fast readout speed of >=
30 frames/second (specification 9) do not need to be simultaneous. When operated at 30
frame/second, the required spatial resolution is at least 12 lp/cm. When operated at 25
lp/cm, the required frame rate is reduced to 15 frames/second.
2.
3.
4.
5.
6.
7.
8.
9.
13.
General Requirements
9. 13. 14. All cables, tooling, and accessories necessary for the system to be fully functional must be
included in your bid and delivered with equipment.
10. 14. One hard copy of equipment/operators manuals for each piece of equipment and software
provided to be delivered with equipment.
15.
YES
NO
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