Faxitron

TODO 2020-01-05: have significant info to add

Faxitron Bioptics

Model	Family	Option	x-ray Spot size (um)	x-ray kVp	x-ray mA	Panel size	Panel resolution (lp/mm)	Panel interface	Mass (kg)	Note
43855A 43855B 43856A			50 - 500	10-130	0.3-3				200-726	64/125/91 cm max focal distance Be x-ray window Tube options: Standard: 10 - 110 kVp, 3 mA, 0.5 mm spot A04: 10 - 130 kVp, 3 mA, 0.5 mm spot M55: 10 - 55 kVp, 0.3 mA, 0.05 mm spot M110: 10 - 110 kVp, 0.3 mA, 0.07 mm spot Panel size? maybe 21 x 26 39 x 45 30 x 36
DX-50	DX-50		50	10-35	0.1	5x5 cm 5x10 cm	10	USB?	32?
MX-20	DX-50		20	10-35	0.3	5x5 cm 12x12 cm	normal: 50 contact: 10		unit: 68.2 w/ cart: 163.7
LX-60	DX-50		20 max (10-12 typ)	10-60	0.3	12x12 cm	10		150
VersaVision							21
MultiRad

See also: Hamamatsu panel

Python code: https://github.com/JohnDMcMaster/faxitron

Alternate DCAM python bindings: https://github.com/lumasullo/Tempesta/tree/master/hamamatsu

Misc info from:

• http://www.rtftechnologies.org/physics/faxitron-DX50-CT-scan.html
• http://www.rtftechnologies.org/physics/faxitron-DX50-teardown.html

Faxitron X-Ray DX-50 Digital Biopsy System with Option DC-4 Specimen Radiography

The Faxitron MX-20 Digital Specimen Radiography System is substantially

equivalent to the following to the following predicate devices:

Faxitron Micro 50 Specimen Radiography System-K852634

Faxitron DX-50 Digital Radiography System-K061361

MX-20 510(k) Submission

Page 9 of 30K079

piXarray Digital Specimen Radiography System-K052433

"The USB Hamamatsu 120mm x 120mm camera array cost £25K on top of the basic MX-20 cabinet cost of £25K. Scary prices." https://www.eevblog.com/forum/buysellwanted/(uk)-faxitron-mx-20-120mm-x-1200mm-complete-system-frasers-own-unit/msg2355963/#msg2355963

Cabinet X-ray Systems

https://epic.awi.de/id/eprint/44382/3/Faxitron-tech-manual.pdf

Models 43855A, 43855B and 43856A

Up to 110kVp depending on option

50-500 um spot size

"designed to give high resolution radiographs of small to medium-size objects of all types"

DX-50

http://www.rtftechnologies.org/physics/faxitron-DX50-CT-scan.html

• Very detailed and valuable info
• See for manuals and other info

Weight

• DX-50 sample shipping weight w/ box: 67 lb
• DX-50 w/ computer: about 81 lb

Circa 2008

https://www.youtube.com/watch?v=XGCvC7F24ws

• Hammimatsu flat panel detector
• Carbon fiber x-ray window to sensor

https://www.youtube.com/watch?v=2-vQt9GNaIk

Manual option info

• DC2: Dalsa, CCD type. 50 x 50 mm (2" x 2") field of view.
• DC4: Dalsa, CCD type. 50 x 100 mm (2" x 4") field of view.
• DC22: Bioptics, CMOS type. 50 x 50 mm (2" x 2") field of view.
• DC24: Bioptics, CMOS type. 50 x 100 mm (2" x 4") field of view.
• DC44: Bioptics, CMOS type. 100 x 100 mm (4" x 4") field of view.
• DC3: Hamamatsu, CCD type. 24 x 34 mm (0.94" x 1.3") field of view.
• DC5: Hamamatsu C9730DK-11, CMOS type. 50 x 50 mm (2" x 2") field of view.
• DC10: Hamamatsu, CMOS type. 100 x 100 mm (4" x 4") field of view.
• DC12: Hamamatsu C9732DK, CMOS type. 120 x 120 mm (4.7" x 4.7") field of view.
  

Power supply

The original power supply is roughly:

• 12V in?
• Dual channel
• Power-one DGP12U5D5, WTT250IG
  • Outputs +/- 5V
  • Is the -5V rail used?
  • Seem to output 5.3 or 5.4V
• LM317
• So basically: 12V DC is converted to just above 5V. Then a linear regulator smooths the last remaining bit down to 5V

Pin	Wire color	Volt	Note
1	Blue	5.11	Ground?
2	Green	0	-5V?
3	Black	0	-5V?
4	Orange	10.85	+5V?

DB9	Wire	Combicon	Volt
1	Yellow	2	0V
2	Blue	2	0V
3	Gray	4	0V
4	Black	4	0V
5	Red	N/C
6	Green	1	5.15V
7	Violet	1	5.15V
8	White	3	5.05V
9	Brown	3	5.05V
	N/C	5
	N/C	6
	N/C	7
	N/C	8

Connectors are similar to Combicon. Markings:

• Large: BL 3.5. Logo I don't recognize..something like JS stylized into a 3D box
• Small is identically marked
• Maybe Weidmüller 1597420000 line. 3.5 mm pitch

MX-20

Cabinet x-ray

Spec sheet

Camera

• DC-12: 12 cm x 12 cm
• DC-5: 5 cm x 5 cm, less expensive

10 lp/mm spatial resolution in contact mode. Magnification allows for spatial resolution of up to 50 lp/mm. The 20 μm nominal focal spot and up to 5X additional geometric magnification

Specs

• Window: 0.01” beryllium
• Resolution: Up to 50 lp/mm (10 lp/mm contact mode)
• 10-35 kVp @ 300 μA
• <20 μm spot size
• Image acquisition time: 15 sec

https://www.eevblog.com/forum/reviews/faxitron-mx-20-x-ray-system-teardown/

https://www.eevblog.com/forum/reviews/faxitron-mx-20-reverse-engineering-(with-some-good-results)/

https://www.youtube.com/watch?v=mYrjOIiJv88

VersaVision

Circa 2017?

Perkin-elmer_xrd-1640_an19-ets-lp

"The MX-20 had an Perkin Elmer panel sensor with parallel output to an SCSI PC interface board. It can do medium sized boards, up to 10" x 12"...The P-E sensor that came with my MX-20 was not it's original sensor. My MX-20 was non-digital, just a film based one (or phosphor plate based). The P-E had a low voltage differential, parallel, output that was sent through a cable to a PCI frame capture board. The board (made by Perkin Elmer) looked like a SCSI interface to the PC. The sensors are available on eBay, sometimes for a good price, but I've not seen a complete system, sensor, power supply, cables, interface card, and software, in a long time. A sensor is on eBay now, see"

tvrsales2 https://www.ebay.com/itm/PERKIN-ELMER-DIGITAL-X-RAY-DETECTOR-SYSTEM-XRD-1640/233202476578

PERKIN ELMER DIGITAL X-RAY DETECTOR SYSTEM XRD-1640

Teledyne dalsa CD26M112 X1

Dalsa Teledyne Xineos CMOS Xray Detector 130mm X 130mm CD26M112 X1

Misc

Jul 31, 2018 Hologic acquired Faxitron Bioptics for $85,000,000

Tweets

• Trying to recover CD data: https://twitter.com/johndmcmaster/status/1214059627576360960?s=20
• On ham power supply: https://twitter.com/johndmcmaster/status/1214058462591631360?s=20
• DC5 vs DC12 cover off: https://twitter.com/johndmcmaster/status/1214056617336926208?s=20
• DC internals: https://twitter.com/johndmcmaster/status/1214055732741435392?s=20