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.

"Dip switch s1 front control panel set switch position 2 to on and it will start the tube for 30 sec at a time without comp"

https://twitter.com/szeloof/status/1233657575503208458?s=20

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

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

DB9	Wire	Weidmüller-8	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

Weidmüller BL series 3.5 mm connectors. Suggested connectors:

• Black female inline, BL series
  • 4: 1615690000, BL 3.5/4 SN SW
  • 4 backorder alt: 1638800000‎
  • 8: 1615700000, BL 3.5/8 SN SW
• Black male board mount (no inline...)
  • 4: 1616030000
  • 8: 1614250000

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

McMaster

2020-02-24

tube in unit
tfx-8050

http://www.trufocus.com/xray_datasheets/microfocus/8000-SWS-Side%20Window/8050%20SWS/MFX-8050-SWS-V01.pdf
50 kV max

power supply
gamma high voltage
XR15-35P/M530A

https://www.ebay.com/itm/Gamma-High-Voltage-Research-rr125-2-5p-ttl-10v-m336-power-supply-w-tcm-1500/362920316155?hash=item547fbc8cfb:g:c9wAAOSwwD1eTcZE
hmm thats interesting

mcmaster@necropolis:~/doc/ext/gnome-tweaks/gtweak$ meson builddir
The Meson build system
Version: 0.45.1
Source dir: /home/mcmaster/doc/ext/gnome-tweaks/gtweak
Build dir: /home/mcmaster/doc/ext/gnome-tweaks/gtweak/builddir
Build type: native build

ERROR: First statement must be a call to project

A full log can be found at /home/mcmaster/doc/ext/gnome-tweaks/gtweak/builddir/meson-logs/meson-log.txt

faxitron summary
-Missing key
    Fix: jimmy lock
-Door switch broken
    Fix: tape screw to door
-X-ray not working?
    left light usually doens't go on, although right light always goes on
    geiger counter not detecting radiation

four0four:b8647895d5133f20d6b33c4a7b25d061

8:53
during operation I'm going like -2 mV
set to 35 kV, I should be getting like 35V

70 mV => low current as well?

if you hold start it has a count down timer
probably for warm up

with fuses removed right light comes on
but left light no longer does

fuses okay

LPQ252 main supply
is it okay?

LPQ252-C -  AC/DC Enclosed Power Supply (PSU), 4 Outputs, 250 W, 5 V, 35 A, 12 V, 10 A
big terminals
5V

can I get the tube or power supply out of the dx-50?

9:26
compare dx-50
power board: all three LEDs come on during fire
idle just one near the input power connector

10:24
flip top switch
time display changes from 010 to 0
in real time even if its on already
also can't hit start any more
remote still does nothing

bottom switch
no visible effect

default is rocked closer to the big IC near it

in special mode
pressing 9: L3 on kV
can up/down number
can go negative
only responds to up, down, and enter

11:00
DX-50
50 mV across hv ps variable resistor

white wire is required
gah need to re-test on mx-20

black power supply HV in
exceeded multimeter vmax
doesn't seem to have damaged it though?
doesn't kick in unless run command executed

10V across divider
+ is reversed vs the HV connections
ie brown at top is 0V
10 kV
    2.819V
20 kV
    5.68V
30 kV
    8.55V
35 kV
    9.88V

check VM (orange)
10 kV
    0.992V
20 kV
    2.001V
35 kV
    3.478V

power supply board behind it
measured while beam off
referenced to black box black wire
3x blue left fuse, 2x
    5.07V
3x orange middle fuse
    11.97V
1x brown right fuse
    -11.97V

big power supply
referenced to black box black ground
V1
    5.10V
COM
V4
    22.55V
RETURN
    -3mV
V3
    -11.97V
COM
    -0.7mV
COM
    -0.4mV
V2
    11.98V
small
    red 15.08V
    big 0
    red 4.97V

MX-20
referenced to black box black ground
V1
    5.03V
COM
V4
    24.55V
    TODO: verify other. Double checked this
RETURN
V3
    -12.01V
COM
COM
V2
    11.89V
small
    red 14.88V
    big 
    red 4.92V

5, 12, -12V okay

Vm 0 under HV
Vref is 10V when set to 35kV, 2.834V when 10kV

next: can I check control signals into HV board?
powered off and unplugged
note this killed the fans
brown
    -11.99 V
white
    0.6 mV
green
    0.5 mV
orange
    11.91 V
black
    -300 mV
(space)
red
    0 V
    think this is a return line
this basically just goes to the big power section

if I had better probe access to that board might make debugging easier

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